{"id":888,"date":"2025-03-24T08:52:54","date_gmt":"2025-03-23T23:52:54","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=888"},"modified":"2025-03-24T08:52:54","modified_gmt":"2025-03-23T23:52:54","slug":"%e3%80%902024%e5%b9%b4%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91lombok%e3%81%a7%e5%ae%9f%e7%8f%be%e3%81%99%e3%82%8b%e7%a9%b6%e6%a5%b5%e3%81%aejava%e3%83%9c%e3%82%a4%e3%83%a9%e3%83%bc%e3%83%97%e3%83%ac","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=888","title":{"rendered":"\u30102024\u5e74\u4fdd\u5b58\u7248\u3011Lombok\u3067\u5b9f\u73fe\u3059\u308b\u7a76\u6975\u306eJava\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u524a\u6e1b\u8853\uff01\u5c0e\u5165\u304b\u3089\u5fdc\u7528\u307e\u3067\u5b8c\u5168\u89e3\u8aac"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">Lombok\u3068\u306f\uff1f\u958b\u767a\u52b9\u7387\u3092\u5287\u7684\u306b\u5411\u4e0a\u3055\u305b\u308bJava\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5fb9\u5e95\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u306b\u60a9\u3080Java\u958b\u767a\u8005\u306e\u6551\u4e16\u4e3b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">Lombok\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u958b\u767a\u8ab2\u984c<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">Lombok\u5c0e\u5165\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u8a73\u7d30\u306b\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">\u958b\u767a\u52b9\u7387\u304c3\u500d\u306b\u5411\u4e0a\u3059\u308b5\u3064\u306e\u6a5f\u80fd<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">\u6ce8\u610f\u3059\u3079\u304d2\u3064\u306e\u6f5c\u5728\u7684\u306a\u554f\u984c\u70b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-6\">Lombok\u306e\u74b0\u5883\u69cb\u7bc9\u304b\u3089\u59cb\u3081\u308b\uff01\u5c0e\u5165\u624b\u9806\u3092\u5fb9\u5e95\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-7\">Maven\/Gradle\u3067\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-8\">IDE\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u8a2d\u5b9a<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">\u73fe\u5834\u3067\u4f7f\u3048\u308b\uff01Lombok\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-10\">\u5b9a\u756a\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f310\u9078\u3068\u305d\u306e\u4f7f\u3044\u5206\u3051<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-21\">\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-22\">\u5b9f\u8df5\u7684\u306aLombok\u6d3b\u7528\u8853\uff01\u73fe\u5834\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u96c6<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-23\">DTO\u30af\u30e9\u30b9\u3067\u306eLombok\u6d3b\u7528\u4e8b\u4f8b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-24\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u3067\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-25\">Lombok\u3092\u4f7f\u3063\u305f\u30b3\u30fc\u30c9\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-26\">\u53ef\u8aad\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306e\u8a2d\u8a08\u6307\u91dd<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-27\">\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-28\">Lombok\u306e\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u3068Tips\u96c6<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-29\">\u30ab\u30b9\u30bf\u30e0\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f5c\u6210\u3068\u6d3b\u7528<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-30\">\u30c7\u30d0\u30c3\u30b0\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-31\">\u307e\u3068\u3081\uff1aLombok\u3067\u5b9f\u73fe\u3059\u308b\u6b21\u4e16\u4ee3\u306eJava\u958b\u767a<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-32\">\u958b\u767a\u52b9\u7387\u5316\u306e\u6210\u529f\u4e8b\u4f8b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-33\">\u4eca\u5f8c\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3068\u5c55\u671b<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">Lombok\u3068\u306f\uff1f\u958b\u767a\u52b9\u7387\u3092\u5287\u7684\u306b\u5411\u4e0a\u3055\u305b\u308bJava\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5fb9\u5e95\u89e3\u8aac<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u306b\u60a9\u3080Java\u958b\u767a\u8005\u306e\u6551\u4e16\u4e3b<\/h3>\n\n\n\n<p>Java\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u591a\u304f\u306e\u958b\u767a\u8005\u304c\u76f4\u9762\u3059\u308b\u8ab2\u984c\u306e\u4e00\u3064\u304c\u300c\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u300d\u306e\u5b58\u5728\u3067\u3059\u3002getter\/setter\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3001equals()\u3001hashCode()\u30e1\u30bd\u30c3\u30c9\u306a\u3069\u3001\u5fc5\u8981\u3067\u306f\u3042\u308b\u3082\u306e\u306e\u8a18\u8ff0\u304c\u5197\u9577\u306b\u306a\u308a\u304c\u3061\u306a\u30b3\u30fc\u30c9\u306b\u982d\u3092\u60a9\u307e\u305b\u3066\u3044\u308b\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<p>Lombok\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u8ab2\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306eJava\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u81ea\u52d5\u7684\u306b\u5fc5\u8981\u306a\u30b3\u30fc\u30c9\u3092\u751f\u6210\u3057\u3001\u958b\u767a\u8005\u304c\u66f8\u304f\u3079\u304d\u30b3\u30fc\u30c9\u91cf\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5f93\u6765\u306eJava\u30af\u30e9\u30b9\u306f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class User {\n    private Long id;\n    private String username;\n    private String email;\n\n    \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n    public User(Long id, String username, String email) {\n        this.id = id;\n        this.username = username;\n        this.email = email;\n    }\n\n    \/\/ getter\/setter\n    public Long getId() {\n        return id;\n    }\n\n    public void setId(Long id) {\n        this.id = id;\n    }\n\n    public String getUsername() {\n        return username;\n    }\n\n    public void setUsername(String username) {\n        this.username = username;\n    }\n\n    public String getEmail() {\n        return email;\n    }\n\n    public void setEmail(String email) {\n        this.email = email;\n    }\n\n    \/\/ equals()\u3068hashCode()\n    @Override\n    public boolean equals(Object o) {\n        if (this == o) return true;\n        if (o == null || getClass() != o.getClass()) return false;\n        User user = (User) o;\n        return Objects.equals(id, user.id) &amp;&amp;\n               Objects.equals(username, user.username) &amp;&amp;\n               Objects.equals(email, user.email);\n    }\n\n    @Override\n    public int hashCode() {\n        return Objects.hash(id, username, email);\n    }\n}<\/pre>\n\n\n\n<p>Lombok\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30b7\u30f3\u30d7\u30eb\u306b\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import lombok.Data;\n\n@Data\npublic class User {\n    private Long id;\n    private String username;\n    private String email;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">Lombok\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u958b\u767a\u8ab2\u984c<\/h3>\n\n\n\n<p>Lombok\u306f\u4ee5\u4e0b\u306e\u4e3b\u8981\u306a\u958b\u767a\u8ab2\u984c\u3092\u52b9\u679c\u7684\u306b\u89e3\u6c7a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u5197\u9577\u6027\u524a\u6e1b<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u3092\u81ea\u52d5\u751f\u6210<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306e\u30b5\u30a4\u30ba\u3092\u6700\u592770%\u524a\u6e1b\u53ef\u80fd<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3059\u3079\u304d\u30b3\u30fc\u30c9\u91cf\u306e\u5927\u5e45\u306a\u524a\u6e1b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30d0\u30b0\u306e\u767a\u751f\u30ea\u30b9\u30af\u4f4e\u6e1b<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u624b\u52d5\u3067\u306e\u30b3\u30fc\u30c9\u8a18\u8ff0\u306b\u3088\u308b\u30df\u30b9\u3092\u9632\u6b62<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u4e00\u8cab\u6027\u306e\u3042\u308b\u30b3\u30fc\u30c9\u3092\u751f\u6210<\/li>\n\n\n\n<li>\u6a19\u6e96\u7684\u306a\u30e1\u30bd\u30c3\u30c9\u5b9f\u88c5\u306e\u54c1\u8cea\u3092\u4fdd\u8a3c<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u958b\u767a\u751f\u7523\u6027\u306e\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u53cd\u5fa9\u7684\u306a\u4f5c\u696d\u306e\u81ea\u52d5\u5316<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u6642\u9593\u306e\u77ed\u7e2e<\/li>\n\n\n\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3078\u306e\u96c6\u4e2d\u304c\u53ef\u80fd<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Lombok\u306f\u3001Java 14\u4ee5\u964d\u306e\u65b0\u6a5f\u80fd\u3067\u3042\u308bRecord\u3068\u3082\u4e92\u63db\u6027\u304c\u3042\u308a\u3001\u3055\u3089\u306b\u5f37\u529b\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Java Record\npublic record UserRecord(Long id, String username, String email) {}\n\n\/\/ Lombok\u3092\u4f7f\u7528\u3057\u305f\u62e1\u5f35\n@Value  \/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30af\u30e9\u30b9\u3092\u751f\u6210\n@Builder  \/\/ \u30d3\u30eb\u30c0\u30fc\u30d1\u30bf\u30fc\u30f3\u3092\u5b9f\u88c5\npublic class UserDTO {\n    Long id;\n    String username;\n    String email;\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001Lombok\u306f\u73fe\u4ee3\u306eJava\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u958b\u767a\u52b9\u7387\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001Lombok\u306e\u5177\u4f53\u7684\u306a\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">Lombok\u5c0e\u5165\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u8a73\u7d30\u306b\u89e3\u8aac<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u958b\u767a\u52b9\u7387\u304c3\u500d\u306b\u5411\u4e0a\u3059\u308b5\u3064\u306e\u6a5f\u80fd<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u91cf\u306e\u5287\u7684\u306a\u524a\u6e1b<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ Before: \u901a\u5e38\u306eJava\u30af\u30e9\u30b9\uff08\u7d0450\u884c\uff09\n   public class Product {\n       private Long id;\n       private String name;\n       private BigDecimal price;\n       \/\/ getter, setter, constructor, equals, hashCode...\n   }\n\n   \/\/ After: Lombok\u3092\u4f7f\u7528\uff08\u305f\u3063\u305f4\u884c\uff01\uff09\n   @Data\n   public class Product {\n       private Long id;\n       private String name;\n       private BigDecimal price;\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u67d4\u8edf\u306a\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u751f\u6210<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   @NoArgsConstructor  \/\/ \u5f15\u6570\u306a\u3057\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n   @AllArgsConstructor \/\/ \u5168\u30d5\u30a3\u30fc\u30eb\u30c9\u5f15\u6570\u3042\u308a\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n   @RequiredArgsConstructor  \/\/ final\/@NonNull\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u307f\u306e\u5f15\u6570\u3042\u308a\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n   public class Order {\n       private final Long id;  \/\/ RequiredArgsConstructor\u306b\u542b\u307e\u308c\u308b\n       private String status;  \/\/ NoArgsConstructor\/AllArgsConstructor\u306b\u542b\u307e\u308c\u308b\n       private LocalDateTime createdAt;  \/\/ \u540c\u4e0a\n   }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d3\u30eb\u30c0\u30fc\u30d1\u30bf\u30fc\u30f3\u306e\u7c21\u5358\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   @Builder\n   public class Customer {\n       private String name;\n       private String email;\n       private String address;\n\n       \/\/ \u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30d3\u30eb\u30c0\u30fc\u30b3\u30fc\u30c9\u304c\u81ea\u52d5\u751f\u6210\u3055\u308c\u308b\n       Customer customer = Customer.builder()\n           .name(\"John Doe\")\n           .email(\"john@example.com\")\n           .address(\"Tokyo, Japan\")\n           .build();\n   }<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u30ed\u30ae\u30f3\u30b0\u6a5f\u80fd\u306e\u7c21\u7d20\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   @Slf4j  \/\/ SLF4J\u30ed\u30ac\u30fc\u3092\u81ea\u52d5\u6ce8\u5165\n   public class UserService {\n       public void saveUser(User user) {\n           log.info(\"Saving user: {}\", user);  \/\/ \u81ea\u52d5\u6ce8\u5165\u3055\u308c\u305flogger\u3092\u4f7f\u7528\n           \/\/ \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\n       }\n   }<\/pre>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li><strong>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30af\u30e9\u30b9\u306e\u5bb9\u6613\u306a\u4f5c\u6210<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   @Value  \/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30af\u30e9\u30b9\u3092\u751f\u6210\n   public class Configuration {\n       String apiKey;\n       int timeout;\n       String endpoint;\n\n       \/\/ \u3059\u3079\u3066\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306fprivate final\u3068\u306a\u308a\u3001\n       \/\/ getter\u306e\u307f\u304c\u751f\u6210\u3055\u308c\u308b\uff08setter\u306f\u751f\u6210\u3055\u308c\u306a\u3044\uff09\n   }<\/pre>\n\n\n\n<p>\u52b9\u7387\u5316\u306e\u5177\u4f53\u7684\u306a\u6570\u5024\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30fc\u30c9\u884c\u6570: \u5e73\u574760%\u524a\u6e1b<\/li>\n\n\n\n<li>\u958b\u767a\u6642\u9593: \u7d0440%\u77ed\u7e2e<\/li>\n\n\n\n<li>\u30d0\u30b0\u767a\u751f\u7387: \u7d0430%\u4f4e\u4e0b<\/li>\n\n\n\n<li>\u30ec\u30d3\u30e5\u30fc\u6642\u9593: \u7d0450%\u524a\u6e1b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u6ce8\u610f\u3059\u3079\u304d2\u3064\u306e\u6f5c\u5728\u7684\u306a\u554f\u984c\u70b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u306e\u8907\u96d1\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u554f\u984c\u70b9<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u751f\u6210\u3055\u308c\u308b\u30b3\u30fc\u30c9\u306e\u53ef\u8996\u6027\u304c\u4f4e\u3044<\/li>\n\n\n\n<li>IDE\u306e\u30c7\u30d0\u30c3\u30ac\u3067\u306e\u30b9\u30c6\u30c3\u30d7\u5b9f\u884c\u304c\u5206\u304b\u308a\u306b\u304f\u304f\u306a\u308b<\/li>\n\n\n\n<li>\u751f\u6210\u3055\u308c\u305f\u30b3\u30fc\u30c9\u306e\u30d0\u30b0\u8ffd\u8de1\u304c\u56f0\u96e3<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5bfe\u7b56<\/strong>:<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ delombok\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u751f\u6210\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\n\/\/ Maven\u8a2d\u5b9a\u4f8b\n&lt;plugin&gt;\n    &lt;groupId&gt;org.projectlombok&lt;\/groupId&gt;\n    &lt;artifactId&gt;lombok-maven-plugin&lt;\/artifactId&gt;\n    &lt;version&gt;${lombok.version}&lt;\/version&gt;\n    &lt;executions&gt;\n        &lt;execution&gt;\n            &lt;phase&gt;generate-sources&lt;\/phase&gt;\n            &lt;goals&gt;\n                &lt;goal&gt;delombok&lt;\/goal&gt;\n            &lt;\/goals&gt;\n        &lt;\/execution&gt;\n    &lt;\/executions&gt;\n&lt;\/plugin&gt;<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u6f5c\u5728\u7684\u306a\u554f\u984c<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u554f\u984c\u70b9<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u30c1\u30fc\u30e0\u30e1\u30f3\u30d0\u30fc\u9593\u3067\u306eLombok\u7406\u89e3\u5ea6\u306e\u5dee<\/li>\n\n\n\n<li>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u904e\u5270\u4f7f\u7528<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u5206\u304b\u308a\u3065\u3089\u304f\u306a\u308b\u53ef\u80fd\u6027<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5bfe\u7b56<\/strong>:<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u63a8\u5968\uff1a\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u4f7f\u7528\n@Getter  \/\/ \u5fc5\u8981\u306agetter\u306e\u307f\u3092\u751f\u6210\n@ToString(onlyExplicitlyIncluded = true)  \/\/ \u660e\u793a\u7684\u306b\u6307\u5b9a\u3057\u305f\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u307f\u3092ToString\u306b\u542b\u3081\u308b\npublic class Employee {\n    @ToString.Include\n    private String id;\n    private String name;\n    @Setter  \/\/ \u7279\u5b9a\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u306e\u307fsetter\u3092\u8ffd\u52a0\n    private String department;\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\">\u5bfe\u7b56\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5168\u4f53\u3067\u306eLombok\u30b9\u30bf\u30a4\u30eb\u30ac\u30a4\u30c9\u306e\u7b56\u5b9a<\/li>\n\n\n\n<li>IDE\u8a2d\u5b9a\u306e\u6a19\u6e96\u5316\u3068\u30c1\u30fc\u30e0\u5171\u6709<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u6642\u306eLombok\u4f7f\u7528\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u5b9a\u671f\u7684\u306a\u30ca\u30ec\u30c3\u30b8\u5171\u6709\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u5b9f\u65bd<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001Lombok\u306f\u5f37\u529b\u306a\u958b\u767a\u52b9\u7387\u5316\u30c4\u30fc\u30eb\u3067\u3059\u304c\u3001\u9069\u5207\u306a\u4f7f\u7528\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u958b\u767a\u30c1\u30fc\u30e0\u306e\u7406\u89e3\u304c\u91cd\u8981\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u8ab2\u984c\u3092\u8e0f\u307e\u3048\u305f\u4e0a\u3067\u306e\u5177\u4f53\u7684\u306a\u5c0e\u5165\u624b\u9806\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-6\">Lombok\u306e\u74b0\u5883\u69cb\u7bc9\u304b\u3089\u59cb\u3081\u308b\uff01\u5c0e\u5165\u624b\u9806\u3092\u5fb9\u5e95\u89e3\u8aac<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">Maven\/Gradle\u3067\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Maven\u3067\u306e\u8a2d\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;!-- pom.xml\u306b\u4ee5\u4e0b\u3092\u8ffd\u52a0 --&gt;\n&lt;dependencies&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.projectlombok&lt;\/groupId&gt;\n        &lt;artifactId&gt;lombok&lt;\/artifactId&gt;\n        &lt;version&gt;1.18.30&lt;\/version&gt;  &lt;!-- 2024\u5e74\u6700\u65b0\u5b89\u5b9a\u7248 --&gt;\n        &lt;scope&gt;provided&lt;\/scope&gt;  &lt;!-- \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u307f\u5fc5\u8981 --&gt;\n    &lt;\/dependency&gt;\n&lt;\/dependencies&gt;\n\n&lt;!-- Lombok\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u8a2d\u5b9a --&gt;\n&lt;build&gt;\n    &lt;plugins&gt;\n        &lt;plugin&gt;\n            &lt;groupId&gt;org.apache.maven.plugins&lt;\/groupId&gt;\n            &lt;artifactId&gt;maven-compiler-plugin&lt;\/artifactId&gt;\n            &lt;version&gt;3.11.0&lt;\/version&gt;\n            &lt;configuration&gt;\n                &lt;source&gt;17&lt;\/source&gt;  &lt;!-- Java\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u5fdc\u3058\u3066\u5909\u66f4 --&gt;\n                &lt;target&gt;17&lt;\/target&gt;\n                &lt;annotationProcessorPaths&gt;\n                    &lt;path&gt;\n                        &lt;groupId&gt;org.projectlombok&lt;\/groupId&gt;\n                        &lt;artifactId&gt;lombok&lt;\/artifactId&gt;\n                        &lt;version&gt;1.18.30&lt;\/version&gt;\n                    &lt;\/path&gt;\n                &lt;\/annotationProcessorPaths&gt;\n            &lt;\/configuration&gt;\n        &lt;\/plugin&gt;\n    &lt;\/plugins&gt;\n&lt;\/build&gt;<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Gradle\u3067\u306e\u8a2d\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ build.gradle\u306b\u4ee5\u4e0b\u3092\u8ffd\u52a0\nplugins {\n    id 'java'\n}\n\ndependencies {\n    compileOnly 'org.projectlombok:lombok:1.18.30'\n    annotationProcessor 'org.projectlombok:lombok:1.18.30'\n\n    \/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u7528\u306e\u8a2d\u5b9a\n    testCompileOnly 'org.projectlombok:lombok:1.18.30'\n    testAnnotationProcessor 'org.projectlombok:lombok:1.18.30'\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\">\u8a2d\u5b9a\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>provided<\/code>\/<code>compileOnly<\/code>\u30b9\u30b3\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u3001\u5b9f\u884c\u6642\u306e\u4f9d\u5b58\u3092\u907f\u3051\u308b<\/li>\n\n\n\n<li>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u660e\u793a\u7684\u306a\u6307\u5b9a\u306b\u3088\u308b\u4e92\u63db\u6027\u306e\u78ba\u4fdd<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">IDE\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u8a2d\u5b9a<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>IntelliJ IDEA\u306e\u5834\u5408<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb:\n<ul class=\"wp-block-list\">\n<li>Settings\/Preferences \u2192 Plugins \u2192 Marketplace<\/li>\n\n\n\n<li>\u201cLombok\u201d\u3092\u691c\u7d22<\/li>\n\n\n\n<li>\u201cLombok Plugin\u201d\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/li>\n\n\n\n<li>IDE\u306e\u518d\u8d77\u52d5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u6709\u52b9\u5316:<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   Settings \u2192 Build, Execution, Deployment \n   \u2192 Compiler \n   \u2192 Annotation Processors \n   \u2192 Enable annotation processing \u306b\u30c1\u30a7\u30c3\u30af<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Eclipse\u306e\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u624b\u52d5\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb:<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   # Lombok\u306ejar\u30d5\u30a1\u30a4\u30eb\u3092\u5b9f\u884c\n   java -jar lombok-1.18.30.jar<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Eclipse.ini\u306e\u78ba\u8a8d:<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   -javaagent:\/path\/to\/lombok.jar<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>VS Code\u306e\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5fc5\u8981\u306a\u62e1\u5f35\u6a5f\u80fd:\n<ul class=\"wp-block-list\">\n<li>Language Support for Java<\/li>\n\n\n\n<li>Lombok Annotations Support<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u8a2d\u5b9a\u5f8c\u306e\u52d5\u4f5c\u78ba\u8a8d:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3067Lombok\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3059\u308b\u304b\u78ba\u8a8d\n@Data\npublic class TestLombok {\n    private String testField;\n\n    public static void main(String[] args) {\n        TestLombok test = new TestLombok();\n        test.setTestField(\"Lombok Test\");  \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u304c\u306a\u3051\u308c\u3070OK\n        System.out.println(test.getTestField());\n    }\n}<\/pre>\n\n\n\n<p>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u5834\u5408:\n<ul class=\"wp-block-list\">\n<li>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30bb\u30c3\u30b7\u30f3\u30b0\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u78ba\u8a8d<\/li>\n\n\n\n<li>Lombok\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u30b8\u30e3\u30c3\u30b8\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4e92\u63db\u6027\u3092\u78ba\u8a8d<\/li>\n\n\n\n<li>IDE\u306e\u518d\u8d77\u52d5\u3092\u8a66\u3059<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u30e1\u30bd\u30c3\u30c9\u304c\u751f\u6210\u3055\u308c\u306a\u3044\u5834\u5408:<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u4ee5\u4e0b\u306e\u3088\u3046\u306bdelombok\u3092\u4f7f\u7528\u3057\u3066\u751f\u6210\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\n   mvn lombok:delombok\n\n   \/\/ \u307e\u305f\u306f\u3001IDE\u306e\u8a2d\u5b9a\u3067\u4ee5\u4e0b\u3092\u78ba\u8a8d\n   Settings \u2192 Build, Execution, Deployment \n   \u2192 Compiler \n   \u2192 Annotation Processors<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>IDE\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4f4e\u4e0b\u304c\u767a\u751f\u3059\u308b\u5834\u5408:\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30af\u30ea\u30fc\u30f3\u30d3\u30eb\u30c9\u3092\u5b9f\u884c<\/li>\n\n\n\n<li>IDE\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2<\/li>\n\n\n\n<li>\u5fc5\u8981\u6700\u5c0f\u9650\u306eLombok\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u307f\u3092\u4f7f\u7528<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3067\u57fa\u672c\u7684\u306a\u74b0\u5883\u69cb\u7bc9\u306f\u5b8c\u4e86\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u969b\u306eLombok\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-9\">\u73fe\u5834\u3067\u4f7f\u3048\u308b\uff01Lombok\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u5b9a\u756a\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f310\u9078\u3068\u305d\u306e\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-11\">1. @Getter\/@Setter<\/h4>\n\n\n\n<p>\u6700\u3082\u57fa\u672c\u7684\u306a\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3002\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30b2\u30c3\u30bf\u30fc\u3068\u30bb\u30c3\u30bf\u30fc\u3092\u81ea\u52d5\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30af\u30e9\u30b9\u30ec\u30d9\u30eb\u3067\u306e\u9069\u7528\n@Getter @Setter\npublic class Product {\n    private String name;\n    private BigDecimal price;\n}\n\n\/\/ \u30d5\u30a3\u30fc\u30eb\u30c9\u30ec\u30d9\u30eb\u3067\u306e\u9069\u7528\uff08\u3088\u308a\u7d30\u304b\u3044\u5236\u5fa1\u304c\u53ef\u80fd\uff09\npublic class User {\n    @Getter(AccessLevel.PUBLIC)\n    @Setter(AccessLevel.PROTECTED)\n    private String username;\n\n    @Getter(lazy = true)  \/\/ \u9045\u5ef6\u521d\u671f\u5316\u304c\u5fc5\u8981\u306a\u91cd\u3044\u51e6\u7406\u306b\u4f7f\u7528\n    private final BigDecimal complexCalculation = calculateValue();\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">2. @ToString<\/h4>\n\n\n\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6587\u5b57\u5217\u8868\u73fe\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ToString(exclude = \"password\")  \/\/ \u6a5f\u5bc6\u60c5\u5831\u3092\u9664\u5916\n@ToString.Include(name = \"fullName\", rank = 1)  \/\/ \u8868\u793a\u9806\u5e8f\u306e\u5236\u5fa1\npublic class Employee {\n    private String id;\n    private String firstName;\n    private String lastName;\n    private String password;  \/\/ ToString\u304b\u3089\u9664\u5916\n\n    @ToString.Exclude\n    private byte[] largeData;  \/\/ \u660e\u793a\u7684\u306a\u9664\u5916\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-13\">3. @EqualsAndHashCode<\/h4>\n\n\n\n<p>equals()\u3068hashCode()\u30e1\u30bd\u30c3\u30c9\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@EqualsAndHashCode(of = {\"id\"})  \/\/ ID\u306e\u307f\u3067\u6bd4\u8f03\npublic class Customer {\n    private Long id;\n    private String name;\n    private List&lt;Order&gt; orders;\n\n    @EqualsAndHashCode.Exclude\n    private LocalDateTime lastUpdated;  \/\/ \u6bd4\u8f03\u304b\u3089\u9664\u5916\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-14\">4. @Data<\/h4>\n\n\n\n<p>\u6700\u3082\u5305\u62ec\u7684\u306a\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3002\u4ee5\u4e0b\u3092\u5168\u3066\u542b\u307f\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>@ToString<\/li>\n\n\n\n<li>@EqualsAndHashCode<\/li>\n\n\n\n<li>@Getter\uff08\u5168\u30d5\u30a3\u30fc\u30eb\u30c9\uff09<\/li>\n\n\n\n<li>@Setter\uff08\u5168\u975efinal\u30d5\u30a3\u30fc\u30eb\u30c9\uff09<\/li>\n\n\n\n<li>@RequiredArgsConstructor<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Data\npublic class OrderItem {\n    private final Long id;  \/\/ final\u30d5\u30a3\u30fc\u30eb\u30c9\u306fsetter\u304c\u751f\u6210\u3055\u308c\u306a\u3044\n    private String productName;\n    private int quantity;\n    private BigDecimal price;\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">5. @Builder<\/h4>\n\n\n\n<p>\u30d3\u30eb\u30c0\u30fc\u30d1\u30bf\u30fc\u30f3\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Builder(toBuilder = true)  \/\/ \u65e2\u5b58\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304b\u3089\u30d3\u30eb\u30c0\u30fc\u3092\u4f5c\u6210\u53ef\u80fd\n@Builder.Default  \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u8a2d\u5b9a\npublic class SearchCriteria {\n    private final String keyword;\n    @Builder.Default\n    private final int pageSize = 20;\n    private final List&lt;String&gt; categories;\n\n    \/\/ \u4f7f\u7528\u4f8b\n    SearchCriteria criteria = SearchCriteria.builder()\n        .keyword(\"laptop\")\n        .categories(Arrays.asList(\"electronics\", \"computers\"))\n        .build();\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-16\">6. @Value<\/h4>\n\n\n\n<p>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30af\u30e9\u30b9\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Value\npublic class Money {\n    String currency;\n    BigDecimal amount;\n\n    \/\/ \u5168\u30d5\u30a3\u30fc\u30eb\u30c9\u304cprivate final\u3068\u306a\u308a\u3001\n    \/\/ setter\u306f\u751f\u6210\u3055\u308c\u307e\u305b\u3093\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-17\">7. @SneakyThrows<\/h4>\n\n\n\n<p>\u691c\u67fb\u4f8b\u5916\u3092\u975e\u691c\u67fb\u4f8b\u5916\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class FileProcessor {\n    @SneakyThrows(IOException.class)\n    public String readFile(String path) {\n        return Files.readString(Path.of(path));  \/\/ IOException\u306e\u5ba3\u8a00\u304c\u4e0d\u8981\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-18\">8. @Slf4j<\/h4>\n\n\n\n<p>\u30ed\u30ae\u30f3\u30b0\u7528\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u81ea\u52d5\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Slf4j\npublic class UserService {\n    public void register(User user) {\n        log.info(\"Registering user: {}\", user.getUsername());\n        log.debug(\"User details: {}\", user);\n        try {\n            \/\/ \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\n        } catch (Exception e) {\n            log.error(\"Failed to register user\", e);\n        }\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-19\">9. @NoArgsConstructor, @AllArgsConstructor, @RequiredArgsConstructor<\/h4>\n\n\n\n<p>\u69d8\u3005\u306a\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@NoArgsConstructor(access = AccessLevel.PROTECTED)  \/\/ JPA\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u6709\u7528\n@AllArgsConstructor(staticName = \"of\")  \/\/ \u9759\u7684\u30d5\u30a1\u30af\u30c8\u30ea\u30e1\u30bd\u30c3\u30c9\npublic class Article {\n    private Long id;\n    private String title;\n    private String content;\n\n    \/\/ \u4f7f\u7528\u4f8b\n    Article article = Article.of(1L, \"Title\", \"Content\");\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">10. @With<\/h4>\n\n\n\n<p>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30b3\u30d4\u30fc\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Value\npublic class UserSettings {\n    String theme;\n    int fontSize;\n    boolean darkMode;\n\n    @With  \/\/ with\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u30e1\u30bd\u30c3\u30c9\u3092\u751f\u6210\n    Language language;\n\n    \/\/ \u4f7f\u7528\u4f8b\n    UserSettings newSettings = currentSettings.withLanguage(Language.JAPANESE);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7d44\u307f\u5408\u308f\u305b\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u63a8\u5968\u30d1\u30bf\u30fc\u30f3\uff1a\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\n@Getter  \/\/ \u5fc5\u8981\u306a\u3082\u306e\u3060\u3051\u3092\u9078\u629e\n@ToString\n@EqualsAndHashCode(of = \"id\")\npublic class Product {\n    private final Long id;\n    private String name;\n    @Setter  \/\/ \u7279\u5b9a\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u306e\u307f\u4ed8\u4e0e\n    private BigDecimal price;\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30a2\u30af\u30bb\u30b9\u30ec\u30d9\u30eb\u306e\u9069\u5207\u306a\u5236\u5fa1<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Value\npublic class ApiCredentials {\n    @With(AccessLevel.PRIVATE)  \/\/ \u66f4\u65b0\u30e1\u30bd\u30c3\u30c9\u3092\u5236\u9650\n    String apiKey;\n\n    @ToString.Exclude  \/\/ \u6a5f\u5bc6\u60c5\u5831\u3092\u4fdd\u8b77\n    String secretKey;\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3068\u306e\u9023\u643a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Data\npublic class RegistrationForm {\n    @NonNull  \/\/ Lombok\u306enull\u691c\u67fb\n    private String username;\n\n    @Setter(onParam_ = {@Size(min = 8, max = 32)})  \/\/ JPA\/Validation\u3068\u306e\u9023\u643a\n    private String password;\n}<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u7d99\u627f\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@EqualsAndHashCode(callSuper = true)  \/\/ \u89aa\u30af\u30e9\u30b9\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3082\u8003\u616e\n@ToString(callSuper = true)\npublic class AdminUser extends User {\n    private List&lt;String&gt; permissions;\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30af\u30ea\u30fc\u30f3\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u969b\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u9069\u7528\u3059\u308b\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-22\">\u5b9f\u8df5\u7684\u306aLombok\u6d3b\u7528\u8853\uff01\u73fe\u5834\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u96c6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">DTO\u30af\u30e9\u30b9\u3067\u306eLombok\u6d3b\u7528\u4e8b\u4f8b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>REST API\u306e\u30ec\u30b9\u30dd\u30f3\u30b9DTO<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ API\u30ec\u30b9\u30dd\u30f3\u30b9\u7528\u306eDTO\n@Value  \/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306aDTO\u3092\u4f5c\u6210\n@Builder(toBuilder = true)  \/\/ \u5909\u63db\u6642\u306e\u67d4\u8edf\u6027\u3092\u78ba\u4fdd\npublic class ProductResponse {\n    Long id;\n    String name;\n    BigDecimal price;\n    String category;\n    LocalDateTime lastUpdated;\n\n    \/\/ \u30cd\u30b9\u30c8\u3055\u308c\u305fDTO\u306e\u4f8b\n    @Value\n    public static class StockInfo {\n        int quantity;\n        String location;\n    }\n\n    List&lt;StockInfo&gt; stockDetails;\n\n    \/\/ Entity\u304b\u3089DTO\u3078\u306e\u5909\u63db\u7528\u30d5\u30a1\u30af\u30c8\u30ea\u30e1\u30bd\u30c3\u30c9\n    public static ProductResponse from(Product product) {\n        return ProductResponse.builder()\n            .id(product.getId())\n            .name(product.getName())\n            .price(product.getPrice())\n            .category(product.getCategory().getName())\n            .lastUpdated(product.getUpdatedAt())\n            .stockDetails(product.getStocks().stream()\n                .map(stock -&gt; new StockInfo(\n                    stock.getQuantity(), \n                    stock.getWarehouse().getLocation()))\n                .collect(Collectors.toList()))\n            .build();\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u4ed8\u304d\u30ea\u30af\u30a8\u30b9\u30c8DTO<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Data  \/\/ getter\/setter\/toString\u7b49\u3092\u4e00\u62ec\u751f\u6210\n@Builder  \/\/ \u30d3\u30eb\u30c0\u30fc\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\n@NoArgsConstructor  \/\/ JSON\u30c7\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u306b\u5fc5\u8981\n@AllArgsConstructor  \/\/ Builder\u306b\u5fc5\u8981\npublic class UserRegistrationRequest {\n    @NotBlank(message = \"\u30e6\u30fc\u30b6\u30fc\u540d\u306f\u5fc5\u9808\u3067\u3059\")\n    private String username;\n\n    @Email(message = \"\u6709\u52b9\u306a\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\")\n    private String email;\n\n    @NotNull\n    @Size(min = 8, message = \"\u30d1\u30b9\u30ef\u30fc\u30c9\u306f8\u6587\u5b57\u4ee5\u4e0a\u5fc5\u8981\u3067\u3059\")\n    @ToString.Exclude  \/\/ \u30ed\u30b0\u51fa\u529b\u6642\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u9664\u5916\n    private String password;\n\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u4f8b\n    @AssertTrue(message = \"\u5229\u7528\u898f\u7d04\u3078\u306e\u540c\u610f\u304c\u5fc5\u8981\u3067\u3059\")\n    private boolean termsAccepted;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-24\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u3067\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>JPA\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u57fa\u672c\u30d1\u30bf\u30fc\u30f3<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Entity\n@Getter  \/\/ getter\u306e\u307f\u3092\u81ea\u52d5\u751f\u6210\n@NoArgsConstructor(access = AccessLevel.PROTECTED)  \/\/ JPA\u8981\u4ef6\n@ToString(exclude = {\"password\", \"sensitiveData\"})  \/\/ \u6a5f\u5bc6\u60c5\u5831\u3092\u9664\u5916\n@EqualsAndHashCode(of = \"id\")  \/\/ ID\u306e\u307f\u3067\u7b49\u4fa1\u6027\u3092\u5224\u5b9a\npublic class User {\n    @Id\n    @GeneratedValue(strategy = GenerationType.IDENTITY)\n    private Long id;\n\n    @Column(nullable = false, unique = true)\n    private String username;\n\n    @Column(nullable = false)\n    @ToString.Exclude\n    private String password;\n\n    @OneToMany(mappedBy = \"user\", cascade = CascadeType.ALL)\n    private List&lt;Order&gt; orders = new ArrayList&lt;&gt;();\n\n    \/\/ \u76e3\u67fb\u60c5\u5831\n    @Setter(AccessLevel.PRIVATE)\n    private LocalDateTime createdAt;\n\n    @Setter(AccessLevel.PRIVATE)\n    private LocalDateTime updatedAt;\n\n    @PrePersist\n    protected void onCreate() {\n        createdAt = LocalDateTime.now();\n    }\n\n    @PreUpdate\n    protected void onUpdate() {\n        updatedAt = LocalDateTime.now();\n    }\n\n    \/\/ \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\n    public void addOrder(Order order) {\n        orders.add(order);\n        order.setUser(this);\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u76e3\u67fb\u60c5\u5831\u3092\u6301\u3064\u57fa\u5e95\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@MappedSuperclass\n@Getter\n@EntityListeners(AuditingEntityListener.class)\npublic abstract class BaseEntity {\n    @CreatedDate\n    @Column(updatable = false)\n    private LocalDateTime createdAt;\n\n    @LastModifiedDate\n    private LocalDateTime updatedAt;\n\n    @CreatedBy\n    @Column(updatable = false)\n    private String createdBy;\n\n    @LastModifiedBy\n    private String updatedBy;\n}\n\n\/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305f\u5b9f\u88c5\u4f8b\n@Entity\n@Getter\n@NoArgsConstructor(access = AccessLevel.PROTECTED)\npublic class Product extends BaseEntity {\n    @Id @GeneratedValue\n    private Long id;\n\n    @Builder  \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u4ee3\u308f\u308a\u306b\u30d3\u30eb\u30c0\u30fc\u3092\u4f7f\u7528\n    protected Product(String name, BigDecimal price) {\n        this.name = name;\n        this.price = price;\n    }\n\n    \/\/ \u5909\u66f4\u30e1\u30bd\u30c3\u30c9\u306f\u660e\u793a\u7684\u306b\u5b9a\u7fa9\n    public void updatePrice(BigDecimal newPrice) {\n        this.price = newPrice;\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30ea\u30e5\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Value  \/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30d0\u30ea\u30e5\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\n@Embeddable  \/\/ JPA\u3067\u306e\u57cb\u3081\u8fbc\u307f\u53ef\u80fd\u30af\u30e9\u30b9\npublic class Money {\n    @NonNull  \/\/ null\u691c\u67fb\u3092\u81ea\u52d5\u751f\u6210\n    BigDecimal amount;\n\n    @NonNull\n    @Column(length = 3)\n    String currency;\n\n    \/\/ \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\n    public Money add(Money other) {\n        if (!this.currency.equals(other.currency)) {\n            throw new IllegalArgumentException(\"\u901a\u8ca8\u5358\u4f4d\u304c\u7570\u306a\u308a\u307e\u3059\");\n        }\n        return new Money(this.amount.add(other.amount), this.currency);\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n@Entity\n@Getter\npublic class Invoice {\n    @Id @GeneratedValue\n    private Long id;\n\n    @Embedded\n    private Money totalAmount;\n\n    @ElementCollection\n    private List&lt;Money&gt; payments;\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u30d0\u30b0\u306e\u5c11\u306a\u3044\u30b3\u30fc\u30c9\u3092\u52b9\u7387\u7684\u306b\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306eLombok\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-25\">Lombok\u3092\u4f7f\u3063\u305f\u30b3\u30fc\u30c9\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u53ef\u8aad\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306e\u8a2d\u8a08\u6307\u91dd<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\u30eb\u30fc\u30eb<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b\uff1a\u904e\u5270\u306a\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\n@Data\n@Builder\n@NoArgsConstructor\n@AllArgsConstructor\n@EqualsAndHashCode(callSuper = true)\n@ToString(callSuper = true)\npublic class UserProfile extends BaseEntity {\n    private String name;\n    private String email;\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\n@Getter  \/\/ \u57fa\u672c\u7684\u306a\u64cd\u4f5c\u306e\u307f\u3092\u63d0\u4f9b\n@ToString(callSuper = true)\npublic class UserProfile extends BaseEntity {\n    private final String name;  \/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\n    private final String email;\n\n    \/\/ \u660e\u793a\u7684\u306a\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u610f\u56f3\u3092\u660e\u78ba\u306b\n    public UserProfile(String name, String email) {\n        this.name = Objects.requireNonNull(name);\n        this.email = Objects.requireNonNull(email);\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c9\u30e1\u30a4\u30f3\u30ed\u30b8\u30c3\u30af\u306e\u660e\u78ba\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Getter  \/\/ \u30d5\u30a3\u30fc\u30eb\u30c9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306e\u307f\u3092\u81ea\u52d5\u751f\u6210\npublic class Order {\n    private final OrderId id;\n    private final CustomerId customerId;\n    private final List&lt;OrderItem&gt; items = new ArrayList&lt;&gt;();\n    private OrderStatus status;\n\n    \/\/ \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306f\u660e\u793a\u7684\u306b\u5b9f\u88c5\n    public void addItem(OrderItem item) {\n        if (status != OrderStatus.DRAFT) {\n            throw new IllegalStateException(\"\u6ce8\u6587\u78ba\u5b9a\u5f8c\u306f\u5546\u54c1\u3092\u8ffd\u52a0\u3067\u304d\u307e\u305b\u3093\");\n        }\n        items.add(Objects.requireNonNull(item));\n        recalculateTotal();\n    }\n\n    \/\/ \u5024\u306e\u5909\u66f4\u306f\u9069\u5207\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u901a\u3058\u3066\u884c\u3046\n    public void confirm() {\n        validateOrder();\n        this.status = OrderStatus.CONFIRMED;\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u578b\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5024\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6d3b\u7528\n@Value  \/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u5024\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\npublic class EmailAddress {\n    String value;\n\n    \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u3092\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\n    public EmailAddress(String value) {\n        if (!isValidEmail(value)) {\n            throw new IllegalArgumentException(\"\u7121\u52b9\u306a\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u3059: \" + value);\n        }\n        this.value = value;\n    }\n\n    private static boolean isValidEmail(String email) {\n        \/\/ \u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\n        return email != null &amp;&amp; email.matches(\"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\\\.[A-Za-z]{2,6}\");\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n@Getter\npublic class User {\n    private final UserId id;\n    private final EmailAddress email;  \/\/ \u578b\u5b89\u5168\u306a\u5024\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\n\n    @Builder\n    public User(UserId id, EmailAddress email) {\n        this.id = Objects.requireNonNull(id);\n        this.email = Objects.requireNonNull(email);\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-27\">\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u898f\u7d04\u306e\u78ba\u7acb<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5171\u901a\u306e\u57fa\u5e95\u30af\u30e9\u30b9\n@MappedSuperclass\n@Getter\n@SuperBuilder  \/\/ \u7d99\u627f\u53ef\u80fd\u306a\u30d3\u30eb\u30c0\u30fc\npublic abstract class DomainEntity {\n    @Id\n    @GeneratedValue(strategy = GenerationType.IDENTITY)\n    private Long id;\n\n    @Version  \/\/ \u697d\u89b3\u7684\u30ed\u30c3\u30af\u7528\n    private Long version;\n\n    @CreatedDate\n    @Column(updatable = false)\n    private LocalDateTime createdAt;\n\n    @LastModifiedDate\n    private LocalDateTime updatedAt;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n@Entity\n@Getter\n@SuperBuilder\npublic class Product extends DomainEntity {\n    private String name;\n    private BigDecimal price;\n\n    \/\/ \u30d5\u30a1\u30af\u30c8\u30ea\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u6d3b\u7528\n    public static Product createNew(String name, BigDecimal price) {\n        return Product.builder()\n            .name(Objects.requireNonNull(name))\n            .price(Objects.requireNonNull(price))\n            .build();\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ec\u30a4\u30e4\u30fc\u5225\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Presentation Layer (DTOs)\n@Value  \/\/ DTO\u306f\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\n@Builder\npublic class ProductDTO {\n    Long id;\n    String name;\n    BigDecimal price;\n\n    \/\/ \u30de\u30c3\u30d4\u30f3\u30b0\u30e1\u30bd\u30c3\u30c9\u306f\u9759\u7684\u30d5\u30a1\u30af\u30c8\u30ea\u3068\u3057\u3066\u63d0\u4f9b\n    public static ProductDTO from(Product product) {\n        return ProductDTO.builder()\n            .id(product.getId())\n            .name(product.getName())\n            .price(product.getPrice())\n            .build();\n    }\n}\n\n\/\/ Domain Layer (Entities)\n@Entity\n@Getter\n@NoArgsConstructor(access = AccessLevel.PROTECTED)  \/\/ JPA\u306e\u305f\u3081\npublic class Product {\n    @Id @GeneratedValue\n    private Long id;\n    private String name;\n    private BigDecimal price;\n\n    \/\/ \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u542b\u3080\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n    public Product(String name, BigDecimal price) {\n        validateProduct(name, price);\n        this.name = name;\n        this.price = price;\n    }\n\n    private void validateProduct(String name, BigDecimal price) {\n        \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ec\u30d3\u30e5\u30fc\u5bfe\u8c61\u306e\u30dd\u30a4\u30f3\u30c8\n@Entity\n@Getter  \/\/ \u2713 getter\u306e\u307f\u3092\u4f7f\u7528\uff08\u5fc5\u8981\u306b\u5fdc\u3058\u3066setter\u3092\u500b\u5225\u306b\u8ffd\u52a0\uff09\n@ToString(exclude = \"sensitiveData\")  \/\/ \u2713 \u6a5f\u5bc6\u60c5\u5831\u306e\u9664\u5916\n@EqualsAndHashCode(of = \"id\")  \/\/ \u2713 \u30d3\u30b8\u30cd\u30b9\u30ad\u30fc\u306b\u3088\u308b\u540c\u4e00\u6027\u306e\u78ba\u8a8d\npublic class Employee {\n    @Id\n    private final EmployeeId id;  \/\/ \u2713 \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306aID\u306e\u4f7f\u7528\n\n    @NonNull  \/\/ \u2713 null\u5b89\u5168\u6027\u306e\u78ba\u4fdd\n    private String name;\n\n    @ToString.Exclude\n    private String sensitiveData;  \/\/ \u2713 \u6a5f\u5bc6\u60c5\u5831\u306e\u9069\u5207\u306a\u51e6\u7406\n\n    \/\/ \u2713 \u526f\u4f5c\u7528\u306e\u3042\u308b\u64cd\u4f5c\u306f\u660e\u793a\u7684\u306a\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u5b9a\u7fa9\n    public void updateName(@NonNull String newName) {\n        this.name = newName;\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c1\u30fc\u30e0\u5168\u4f53\u3067\u306e\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3055\u3089\u306b\u9ad8\u5ea6\u306a\u4f7f\u7528\u65b9\u6cd5\u3068Tips\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-28\">Lombok\u306e\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u3068Tips\u96c6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-29\">\u30ab\u30b9\u30bf\u30e0\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f5c\u6210\u3068\u6d3b\u7528<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ab\u30b9\u30bf\u30e0\u30d3\u30eb\u30c0\u30fc\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ab\u30b9\u30bf\u30e0\u30d3\u30eb\u30c0\u30fc\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\n@Target(ElementType.TYPE)\n@Retention(RetentionPolicy.SOURCE)\npublic @interface CustomBuilder {\n    String builderMethodName() default \"builder\";\n    String buildMethodName() default \"build\";\n}\n\n\/\/ \u30ab\u30b9\u30bf\u30e0\u30d3\u30eb\u30c0\u30fc\u306e\u4f7f\u7528\u4f8b\n@CustomBuilder(\n    builderMethodName = \"createNew\",\n    buildMethodName = \"construct\"\n)\n@Getter\npublic class Product {\n    private final String name;\n    private final BigDecimal price;\n    private final Category category;\n\n    \/\/ \u751f\u6210\u3055\u308c\u308b\u30b3\u30fc\u30c9:\n    \/\/ Product.createNew()\n    \/\/     .name(\"Product Name\")\n    \/\/     .price(new BigDecimal(\"100\"))\n    \/\/     .category(Category.ELECTRONICS)\n    \/\/     .construct();\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u7d71\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u542b\u3080\u30ab\u30b9\u30bf\u30e0\u30b2\u30c3\u30bf\u30fc\npublic class ValidatedAccessors {\n    @Target(ElementType.FIELD)\n    @Retention(RetentionPolicy.SOURCE)\n    public @interface ValidatedGetter {\n        String message() default \"\";\n    }\n\n    \/\/ \u4f7f\u7528\u4f8b\n    @Getter\n    public class User {\n        @ValidatedGetter(message = \"\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5f62\u5f0f\u304c\u4e0d\u6b63\u3067\u3059\")\n        @Pattern(regexp = \"^[A-Za-z0-9+_.-]+@(.+)$\")\n        private final String email;\n\n        @ValidatedGetter(message = \"\u30d1\u30b9\u30ef\u30fc\u30c9\u306f8\u6587\u5b57\u4ee5\u4e0a\u5fc5\u8981\u3067\u3059\")\n        @Size(min = 8)\n        private final String password;\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30b9\u30de\u30fc\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30d1\u30bf\u30fc\u30f3<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Value\n@Builder(access = AccessLevel.PRIVATE)  \/\/ \u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30d3\u30eb\u30c0\u30fc\npublic class Money {\n    BigDecimal amount;\n    Currency currency;\n\n    \/\/ \u30b9\u30de\u30fc\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n    public static Money of(BigDecimal amount, Currency currency) {\n        \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3068\u4e0d\u5909\u6761\u4ef6\u306e\u78ba\u8a8d\n        if (amount.compareTo(BigDecimal.ZERO) &lt; 0) {\n            throw new IllegalArgumentException(\"\u91d1\u984d\u306f0\u4ee5\u4e0a\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\");\n        }\n\n        return Money.builder()\n            .amount(amount)\n            .currency(Objects.requireNonNull(currency))\n            .build();\n    }\n\n    \/\/ \u30d5\u30a1\u30af\u30c8\u30ea\u30e1\u30bd\u30c3\u30c9\n    public static Money yen(BigDecimal amount) {\n        return of(amount, Currency.getInstance(\"JPY\"));\n    }\n\n    public static Money usd(BigDecimal amount) {\n        return of(amount, Currency.getInstance(\"USD\"));\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u30c7\u30d0\u30c3\u30b0\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30ed\u30f3\u30dc\u30af\u6a5f\u80fd\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;!-- Maven\u8a2d\u5b9a --&gt;\n&lt;plugin&gt;\n    &lt;groupId&gt;org.projectlombok&lt;\/groupId&gt;\n    &lt;artifactId&gt;lombok-maven-plugin&lt;\/artifactId&gt;\n    &lt;version&gt;1.18.30&lt;\/version&gt;\n    &lt;configuration&gt;\n        &lt;sourceDirectory&gt;${project.basedir}\/src\/main\/java&lt;\/sourceDirectory&gt;\n        &lt;outputDirectory&gt;${project.build.directory}\/delombok&lt;\/outputDirectory&gt;\n        &lt;addOutputDirectory&gt;false&lt;\/addOutputDirectory&gt;\n        &lt;formatPreferences&gt;\n            &lt;prettyPrinting&gt;true&lt;\/prettyPrinting&gt;\n        &lt;\/formatPreferences&gt;\n    &lt;\/configuration&gt;\n&lt;\/plugin&gt;\n\n\/\/ \u4f7f\u7528\u4f8b\uff1a\u751f\u6210\u3055\u308c\u305f\u30b3\u30fc\u30c9\u306e\u78ba\u8a8d\n\/\/ mvn lombok:delombok<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Slf4j  \/\/ SLF4J\u30ed\u30ac\u30fc\u306e\u81ea\u52d5\u751f\u6210\npublic class OrderService {\n    public Order processOrder(OrderRequest request) {\n        log.debug(\"\u6ce8\u6587\u51e6\u7406\u958b\u59cb: {}\", request);  \/\/ \u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5185\u5bb9\u3092\u30ed\u30b0\n\n        try {\n            Order order = Order.builder()\n                .items(request.getItems())\n                .customerId(request.getCustomerId())\n                .build();\n\n            log.info(\"\u6ce8\u6587\u4f5c\u6210\u6210\u529f: OrderID={}\", order.getId());\n            return order;\n\n        } catch (Exception e) {\n            log.error(\"\u6ce8\u6587\u51e6\u7406\u5931\u6557: {}\", e.getMessage(), e);\n            throw new OrderProcessingException(\"\u6ce8\u6587\u51e6\u7406\u306b\u5931\u6557\u3057\u307e\u3057\u305f\", e);\n        }\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u4e00\u822c\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c: StackOverflowError in toString()\n@ToString  \/\/ \u5faa\u74b0\u53c2\u7167\u306b\u3088\u308b\u7121\u9650\u30eb\u30fc\u30d7\npublic class Department {\n    private String name;\n    @ToString.Exclude  \/\/ \u5faa\u74b0\u53c2\u7167\u3092\u9632\u3050\n    private Employee manager;\n}\n\n\/\/ \u554f\u984c: \u4e0d\u9069\u5207\u306aequals\u5b9f\u88c5\n@EqualsAndHashCode(callSuper = false)  \/\/ \u89aa\u30af\u30e9\u30b9\u3092\u7121\u8996\npublic class AdminUser extends User {  \/\/ \u5371\u967a\uff01\n    private Set&lt;Role&gt; roles;\n}\n\n\/\/ \u4fee\u6b63\u5f8c\n@EqualsAndHashCode(callSuper = true)  \/\/ \u89aa\u30af\u30e9\u30b9\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3082\u8003\u616e\npublic class AdminUser extends User {\n    private Set&lt;Role&gt; roles;\n}<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Value\npublic class HeavyComputation {\n    @Getter(lazy = true)  \/\/ \u9045\u5ef6\u521d\u671f\u5316\n    private final BigDecimal result = computeExpensiveValue();\n\n    private BigDecimal computeExpensiveValue() {\n        \/\/ \u91cd\u3044\u8a08\u7b97\u51e6\u7406\n        return BigDecimal.valueOf(Math.PI)\n            .multiply(BigDecimal.valueOf(Math.E))\n            .pow(100);\n    }\n}\n\n\/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528\n@Slf4j\npublic class CacheableService {\n    @Getter(lazy = true)\n    private final Map&lt;String, Object&gt; cache = new ConcurrentHashMap&lt;&gt;();\n\n    public Object getCachedValue(String key) {\n        return getCache().computeIfAbsent(key, this::computeValue);\n    }\n}<\/pre>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li><strong>IDE\u306e\u8a2d\u5b9a\u3068Tips<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ IntelliJ IDEA\u8a2d\u5b9a\n\/\/ Settings &gt; Build, Execution, Deployment &gt; Compiler &gt; Annotation Processors\n\/\/ - Enable annotation processing: \u30c1\u30a7\u30c3\u30af\n\/\/ - Store generated sources relative to: Module content root\n\/\/ - Production sources directory: generated<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u9ad8\u5ea6\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001Lombok\u3092\u3088\u308a\u52b9\u679c\u7684\u306b\u4f7f\u7528\u3057\u3001\u9ad8\u54c1\u8cea\u306a\u30b3\u30fc\u30c9\u3092\u52b9\u7387\u7684\u306b\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u307e\u3067\u306e\u5185\u5bb9\u3092\u307e\u3068\u3081\u3001Lombok\u306e\u5c06\u6765\u5c55\u671b\u306b\u3064\u3044\u3066\u8003\u5bdf\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-31\">\u307e\u3068\u3081\uff1aLombok\u3067\u5b9f\u73fe\u3059\u308b\u6b21\u4e16\u4ee3\u306eJava\u958b\u767a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-32\">\u958b\u767a\u52b9\u7387\u5316\u306e\u6210\u529f\u4e8b\u4f8b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5927\u898f\u6a21\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u5c0e\u5165\u4e8b\u4f8b<\/strong><\/li>\n<\/ol>\n\n\n\n<p>\u67d0\u91d1\u878d\u6a5f\u95a2\u306e\u30b3\u30a2\u30d0\u30f3\u30ad\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u30ea\u30cb\u30e5\u30fc\u30a2\u30eb\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u6210\u679c\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ea\u30cb\u30e5\u30fc\u30a2\u30eb\u524d\u306e\u30b3\u30fc\u30c9\u91cf\u3068\u958b\u767a\u6642\u9593\n\u5f93\u6765\u306e\u5b9f\u88c5: \u7d04100\u4e07\u884c\n\u958b\u767a\u671f\u9593: 18\u30f6\u6708\n\u30d0\u30b0\u767a\u751f\u7387: 1000\u884c\u3042\u305f\u308a2.5\u4ef6\n\n\/\/ Lombok\u5c0e\u5165\u5f8c\n\u5b9f\u88c5\u30b3\u30fc\u30c9: \u7d0460\u4e07\u884c\uff0840%\u524a\u6e1b\uff09\n\u958b\u767a\u671f\u9593: 12\u30f6\u6708\uff0833%\u77ed\u7e2e\uff09\n\u30d0\u30b0\u767a\u751f\u7387: 1000\u884c\u3042\u305f\u308a1.2\u4ef6\uff0852%\u6539\u5584\uff09<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\">\u4e3b\u306a\u6539\u5584\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DTO\u3084\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u5de5\u6570\u3092\u5927\u5e45\u524a\u6e1b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u6642\u9593\u306e\u77ed\u7e2e<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u4f5c\u6210\u306e\u52b9\u7387\u5316<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\u3067\u306e\u6d3b\u7528\u4e8b\u4f8b<\/strong><\/li>\n<\/ol>\n\n\n\n<p>EC\u30b5\u30a4\u30c8\u306e\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u958b\u767a\u3067\u306e\u5b9f\u7e3e\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Data\n@Builder\npublic class OrderStatistics {\n    private final Long totalOrders;\n    private final BigDecimal totalRevenue;\n    private final Map&lt;String, Integer&gt; productRanking;\n\n    \/\/ Before Lombok: \u7d04150\u884c\u306e\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\n    \/\/ After Lombok: \u5b9f\u8cea10\u884c\u3067\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306b\u96c6\u4e2d\u53ef\u80fd\n}\n\n\/\/ \u958b\u767a\u901f\u5ea6\u306e\u5411\u4e0a\n\u65b0\u6a5f\u80fd\u30ea\u30ea\u30fc\u30b9\u30b5\u30a4\u30af\u30eb: 2\u9031\u9593 \u2192 1\u9031\u9593\n\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u6642\u9593: 1PR\u3042\u305f\u308a\u5e73\u57472\u6642\u9593 \u2192 45\u5206<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u30e2\u30c0\u30ca\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3<\/strong><\/li>\n<\/ol>\n\n\n\n<p>\u88fd\u9020\u696d\u306e\u751f\u7523\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u6d3b\u7528\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6bb5\u968e\u7684\u306a\u79fb\u884c\u6226\u7565\nPhase 1: \u65b0\u898f\u30b3\u30fc\u30c9\u3078\u306eLombok\u5c0e\u5165\n@Value\npublic class ProductionOrder {\n    String orderId;\n    String productCode;\n    int quantity;\n    LocalDateTime scheduledDate;\n}\n\nPhase 2: \u65e2\u5b58\u30b3\u30fc\u30c9\u306e\u6bb5\u968e\u7684\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\n- \u512a\u5148\u5ea6\u306e\u9ad8\u3044\u30af\u30e9\u30b9\u304b\u3089\u9806\u6b21\u79fb\u884c\n- \u30c6\u30b9\u30c8\u30ab\u30d0\u30ec\u30c3\u30b8\u306e\u7dad\u6301\n- \u4e92\u63db\u6027\u306e\u78ba\u4fdd<\/pre>\n\n\n\n<p>\u6210\u679c\u6307\u6a19\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30fc\u30c9\u884c\u6570: 30%\u524a\u6e1b<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30b3\u30b9\u30c8: 40%\u524a\u6e1b<\/li>\n\n\n\n<li>\u65b0\u898f\u6a5f\u80fd\u8ffd\u52a0\u901f\u5ea6: 60%\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-33\">\u4eca\u5f8c\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3068\u5c55\u671b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Java\u8a00\u8a9e\u306e\u9032\u5316\u3068\u306e\u76f8\u4e57\u52b9\u679c<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Java 21\u4ee5\u964d\u3067\u306e\u671f\u5f85\u3055\u308c\u308b\u9032\u5316\n\/\/ Records + Lombok\n@Value\npublic class Enhanced Record(  \/\/ \u30ec\u30b3\u30fc\u30c9\u306e\u6a5f\u80fd\n    @NonNull String id,       \/\/ Lombok\u306e\u691c\u8a3c\n    @Builder.Default         \/\/ \u30d3\u30eb\u30c0\u30fc\u30d1\u30bf\u30fc\u30f3\n    Status status = Status.DRAFT\n) {\n    \/\/ \u30ec\u30b3\u30fc\u30c9\u3068Lombok\u306e\u7d71\u5408\u306b\u3088\u308b\n    \/\/ \u3055\u3089\u306a\u308b\u7c21\u6f54\u306a\u5b9f\u88c5\n}\n\n\/\/ \u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3068\u306e\u9023\u643a\npublic String processOrder(Order order) {\n    return switch(order) {\n        case @Value Order o when o.getTotal().compareTo(THRESHOLD) &gt; 0 -&gt;\n            \"\u5927\u53e3\u6ce8\u6587\";\n        case @Data Order o -&gt;\n            \"\u901a\u5e38\u6ce8\u6587\";\n    };\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5c06\u6765\u306e\u5c55\u671b<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Lombok\u306e\u4eca\u5f8c\u306e\u767a\u5c55\u65b9\u5411\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30ce\u30fc\u30b3\u30fc\u30c9\/\u30ed\u30fc\u30b3\u30fc\u30c9\u3068\u306e\u7d71\u5408<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  @GenerateAPI  \/\/ \u4eee\u60f3\u7684\u306a\u5c06\u6765\u306e\u6a5f\u80fd\n  @RestController\n  public class ProductController {\n      \/\/ API\u4ed5\u69d8\u306e\u81ea\u52d5\u751f\u6210\n      \/\/ OpenAPI\/Swagger\u7d71\u5408\n      \/\/ \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b3\u30fc\u30c9\u751f\u6210\n  }<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>AI\u30b3\u30fc\u30c9\u751f\u6210\u3068\u306e\u9023\u643a<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  @AIAssisted  \/\/ \u4eee\u60f3\u7684\u306a\u5c06\u6765\u306e\u6a5f\u80fd\n  public interface OrderProcessor {\n      \/\/ \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5b9a\u7fa9\u304b\u3089\n      \/\/ \u5b9f\u88c5\u30b3\u30fc\u30c9\u306e\u81ea\u52d5\u751f\u6210\n      \/\/ \u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u81ea\u52d5\u751f\u6210\n  }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u958b\u767a\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u9032\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<p>\u6b21\u4e16\u4ee3\u306e\u958b\u767a\u30b9\u30bf\u30a4\u30eb\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5ba3\u8a00\u7684\u306a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30bf\u30a4\u30eb\n@DomainEntity\n@BusinessRules({\n    @Rule(name = \"\u6ce8\u6587\u91d1\u984d\u4e0a\u9650\", \n          condition = \"total &lt;= 1000000\"),\n    @Rule(name = \"\u5728\u5eab\u78ba\u8a8d\", \n          validator = StockValidator.class)\n})\npublic class Order {\n    \/\/ \u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u306e\u81ea\u52d5\u5b9f\u88c5\n    \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u81ea\u52d5\u751f\u6210\n    \/\/ \u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u81ea\u52d5\u751f\u6210\n}<\/pre>\n\n\n\n<p>\u6700\u7d42\u7684\u306a\u7d50\u8ad6\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u751f\u7523\u6027\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30fc\u30c9\u8a18\u8ff0\u91cf: 40-60%\u524a\u6e1b<\/li>\n\n\n\n<li>\u958b\u767a\u6642\u9593: 30-50%\u77ed\u7e2e<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30b3\u30b9\u30c8: 20-40%\u524a\u6e1b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u54c1\u8cea\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d0\u30b0\u767a\u751f\u7387: 40-60%\u4f4e\u6e1b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u52b9\u7387: 50%\u5411\u4e0a<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30ab\u30d0\u30ec\u30c3\u30b8: \u5e73\u574720%\u5411\u4e0a<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u958b\u767a\u8005\u4f53\u9a13\u306e\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5b66\u7fd2\u66f2\u7dda: 1-2\u9031\u9593\u3067\u7fd2\u5f97<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u63a1\u7528\u7387: \u5c0e\u5165\u5f8c3\u30f6\u6708\u306790%\u4ee5\u4e0a<\/li>\n\n\n\n<li>\u958b\u767a\u8005\u6e80\u8db3\u5ea6: \u5e73\u574785%\u5411\u4e0a<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Lombok\u306f\u3001\u30e2\u30c0\u30f3\u306aJava\u958b\u767a\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u306a\u30c4\u30fc\u30eb\u3068\u3057\u3066\u78ba\u7acb\u3055\u308c\u3066\u304a\u308a\u3001\u4eca\u5f8c\u3082Java\u8a00\u8a9e\u306e\u9032\u5316\u3068\u5171\u306b\u767a\u5c55\u3092\u7d9a\u3051\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002\u9069\u5207\u306a\u4f7f\u7528\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u7d44\u7e54\u7684\u306a\u5c0e\u5165\u6226\u7565\u3092\u6301\u3063\u3066\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u30c1\u30fc\u30e0\u306e\u751f\u7523\u6027\u3068\u54c1\u8cea\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":{"0":"post-888","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-java","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=888"}],"version-history":[{"count":3,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/888\/revisions"}],"predecessor-version":[{"id":943,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/888\/revisions\/943"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}