{"id":1063,"date":"2025-03-24T08:52:46","date_gmt":"2025-03-23T23:52:46","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1063"},"modified":"2025-03-24T08:52:46","modified_gmt":"2025-03-23T23:52:46","slug":"%e3%80%902024%e5%b9%b4%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91guava%e3%83%a9%e3%82%a4%e3%83%96%e3%83%a9%e3%83%aa%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a7%e3%81%a4%e3%81%ae%e4%b8%bb%e8%a6%81","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1063","title":{"rendered":"\u30102024\u5e74\u4fdd\u5b58\u7248\u3011Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a7\u3064\u306e\u4e3b\u8981\u6a5f\u80fd\u3068\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b"},"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\">Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u306f\uff1aGoogle\u304c\u8d08\u308b\u7a76\u6975\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e9\u30a4\u30d6\u30e9\u30ea<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">Google\u304c\u958b\u767a\u3057\u305f\u7406\u7531\u3068\u305d\u306e\u7279\u5fb4<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u5f93\u6765\u306eJava\u306e\u8ab2\u984c\u3068Guava\u306b\u3088\u308b\u89e3\u6c7a\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u5c0e\u5165\u65b9\u6cd5\u3068\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u624b\u9806<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">Maven\/Gradle\u3067\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u8ffd\u52a0\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u4e92\u63db\u6027\u306e\u6ce8\u610f\u70b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-6\">Guava\u304c\u63d0\u4f9b\u3059\u308b7\u3064\u306e\u5f37\u529b\u306a\u6a5f\u80fd<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-7\">Collections\uff1a\u3088\u308a\u67d4\u8edf\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c<\/a>      <\/li>      <li>        <a href=\"#i-8\">Immutable Collections\uff1a\u4e0d\u5909\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u5805\u7262\u6027\u5411\u4e0a<\/a>      <\/li>      <li>        <a href=\"#i-9\">Cache\uff1a\u9ad8\u6027\u80fd\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u80fd<\/a>      <\/li>      <li>        <a href=\"#i-10\">Strings\uff1a\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u52b9\u7387\u5316<\/a>      <\/li>      <li>        <a href=\"#i-11\">Preconditions\uff1a\u5805\u7262\u306a\u4e8b\u524d\u6761\u4ef6\u30c1\u30a7\u30c3\u30af<\/a>      <\/li>      <li>        <a href=\"#i-12\">Optional\uff1a\u3088\u308a\u30a8\u30ec\u30ac\u30f3\u30c8\u306anull\u51e6\u7406<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-13\">EventBus\uff1a\u758e\u7d50\u5408\u306a\u30a4\u30d9\u30f3\u30c8\u51e6\u7406<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-14\">\u5b9f\u8df5\u7684\u306aGuava\u6d3b\u7528\u4f8b\uff1a\u30b3\u30fc\u30c9\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-15\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u30ad\u30e3\u30c3\u30b7\u30e5\u5b9f\u88c5\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u5b9f\u88c5\u4f8b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-18\">Guava\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u6700\u9069\u5316<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-19\">\u5404\u6a5f\u80fd\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-20\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-21\">Java\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3068Guava\u306e\u4f7f\u3044\u5206\u3051<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-22\">\u6a5f\u80fd\u306e\u91cd\u8907\u3068\u9078\u629e\u57fa\u6e96<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-23\">\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u5224\u65ad\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-24\">Guava\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-25\">\u3088\u304f\u3042\u308b\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-26\">\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u6642\u306e\u4e92\u63db\u6027\u7dad\u6301<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-27\">\u307e\u3068\u3081\uff1aGuava\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u6d3b\u7528\u3067\u5b9f\u73fe\u3059\u308b\u9ad8\u54c1\u8cea\u306aJava\u958b\u767a<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-28\">Guava\u63a1\u7528\u306e\u30e1\u30ea\u30c3\u30c8<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-29\">\u5b9f\u8df5\u306e\u305f\u3081\u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/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\">Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u306f\uff1aGoogle\u304c\u8d08\u308b\u7a76\u6975\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e9\u30a4\u30d6\u30e9\u30ea<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">Google\u304c\u958b\u767a\u3057\u305f\u7406\u7531\u3068\u305d\u306e\u7279\u5fb4<\/h3>\n\n\n\n<p>Guava\u306f\u3001Google\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30c1\u30fc\u30e0\u304c\u793e\u5185\u3067\u306e\u5927\u898f\u6a21Java\u958b\u767a\u306b\u304a\u3051\u308b\u5171\u901a\u306e\u8ab2\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u958b\u767a\u3057\u305f\u3001\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u30022007\u5e74\u306b\u793e\u5185\u30c4\u30fc\u30eb\u3068\u3057\u3066\u8a95\u751f\u3057\u30012009\u5e74\u306b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u5316\u3055\u308c\u3066\u4ee5\u6765\u3001Java\u958b\u767a\u8005\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3067\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">Guava\u306e\u4e3b\u8981\u306a\u7279\u5fb4\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9f\u7e3e\u306b\u57fa\u3065\u304f\u4fe1\u983c\u6027<\/strong>\n<ul class=\"wp-block-list\">\n<li>Google\u306e\u672c\u756a\u74b0\u5883\u3067\u5b9f\u969b\u306b\u4f7f\u7528\u3055\u308c\u3001\u691c\u8a3c\u3055\u308c\u305f\u6a5f\u80fd\u7fa4<\/li>\n\n\n\n<li>\u5927\u898f\u6a21\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u904b\u7528\u5b9f\u7e3e\u306b\u3088\u308b\u5b89\u5b9a\u6027<\/li>\n\n\n\n<li>\u6d3b\u767a\u306a\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306b\u3088\u308b\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5305\u62ec\u7684\u306a\u6a5f\u80fd\u30bb\u30c3\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c\u306e\u62e1\u5f35<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u69cb<\/li>\n\n\n\n<li>\u6587\u5b57\u5217\u51e6\u7406<\/li>\n\n\n\n<li>\u4e26\u884c\u51e6\u7406\u306e\u30b5\u30dd\u30fc\u30c8<\/li>\n\n\n\n<li>\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u30b7\u30b9\u30c6\u30e0<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6700\u9069\u5316\u3055\u308c\u305f\u5b9f\u88c5<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u52b9\u7387\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u69cb\u9020<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u51e6\u7406<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u5f93\u6765\u306eJava\u306e\u8ab2\u984c\u3068Guava\u306b\u3088\u308b\u89e3\u6c7a\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u5f93\u6765\u306eJava\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8ab2\u984c\u304c\u5b58\u5728\u3057\u3001Guava\u306f\u3053\u308c\u3089\u306b\u5bfe\u3059\u308b\u52b9\u679c\u7684\u306a\u89e3\u6c7a\u7b56\u3092\u63d0\u4f9b\u3057\u307e\u3059\uff1a<\/p>\n\n\n<div id=\"id-1b579e51-ffce-472b-b14b-2446258d1087\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5f93\u6765\u306e\u8ab2\u984c<\/th><th>Guava\u306b\u3088\u308b\u89e3\u6c7a\u7b56<\/th><th>\u30e1\u30ea\u30c3\u30c8<\/th><\/tr><\/thead><tbody><tr><td>\u5197\u9577\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c<\/td><td>\u76f4\u611f\u7684\u306a\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e1\u30bd\u30c3\u30c9<\/td><td>\u30b3\u30fc\u30c9\u91cf\u306e\u524a\u6e1b\u3001\u53ef\u8aad\u6027\u306e\u5411\u4e0a<\/td><\/tr><tr><td>Null\u30dd\u30a4\u30f3\u30bf\u306e\u51e6\u7406<\/td><td>Optional\u30af\u30e9\u30b9\u306e\u63d0\u4f9b<\/td><td>\u3088\u308a\u5b89\u5168\u306aNull\u5024\u306e\u53d6\u308a\u6271\u3044<\/td><\/tr><tr><td>\u8907\u96d1\u306a\u6761\u4ef6\u30c1\u30a7\u30c3\u30af<\/td><td>Preconditions\u30af\u30e9\u30b9<\/td><td>\u7c21\u6f54\u3067\u7d71\u4e00\u7684\u306a\u4e8b\u524d\u6761\u4ef6\u30c1\u30a7\u30c3\u30af<\/td><\/tr><tr><td>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u6027\u306e\u5b9f\u88c5<\/td><td>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30b3\u30ec\u30af\u30b7\u30e7\u30f3<\/td><td>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u6027\u306e\u5411\u4e0a<\/td><\/tr><tr><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5b9f\u88c5<\/td><td>CacheBuilder\u30af\u30e9\u30b9<\/td><td>\u9ad8\u6027\u80fd\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u69cb\u306e\u5bb9\u6613\u306a\u5b9f\u88c5<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u4f8b\u3048\u3070\u3001\u5f93\u6765\u306eJava\u3067\u306e\u5197\u9577\u306a\u5b9f\u88c5\u304c\u3001Guava\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7c21\u6f54\u306b\u306a\u308a\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=\"\">\/\/ \u5f93\u6765\u306eJava\u5b9f\u88c5\nList&lt;String&gt; filteredList = new ArrayList&lt;&gt;();\nfor (String item : originalList) {\n    if (item != null &amp;&amp; item.length() &gt; 5) {\n        filteredList.add(item.toUpperCase());\n    }\n}\n\n\/\/ Guava\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u88c5\nList&lt;String&gt; filteredList = Lists.newArrayList(Collections2.filter(\n    Collections2.transform(originalList, \n        input -&gt; input != null ? input.toUpperCase() : null),\n    input -&gt; input != null &amp;&amp; input.length() &gt; 5\n));<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001Guava\u306f\u5f93\u6765\u306eJava\u306e\u5236\u9650\u3092\u514b\u670d\u3057\u3001\u3088\u308a\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u4f5c\u6210\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u7279\u306b\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u30b3\u30fc\u30c9\u306e\u4e00\u8cab\u6027\u3068\u54c1\u8cea\u5411\u4e0a\u306b\u5927\u304d\u304f\u8ca2\u732e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u5c0e\u5165\u65b9\u6cd5\u3068\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u624b\u9806<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">Maven\/Gradle\u3067\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u8ffd\u52a0\u65b9\u6cd5<\/h3>\n\n\n\n<p>Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u3001\u4e3b\u8981\u306a\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u3092\u901a\u3058\u3066\u7c21\u5358\u306b\u5c0e\u5165\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306e\u5c0e\u5165\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>Maven\u306e\u5834\u5408<\/strong>\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=\"\">&lt;dependency&gt;\n    &lt;groupId&gt;com.google.guava&lt;\/groupId&gt;\n    &lt;artifactId&gt;guava&lt;\/artifactId&gt;\n    &lt;version&gt;32.1.3-jre&lt;\/version&gt;\n&lt;\/dependency&gt;<\/pre>\n\n\n\n<p><strong>Gradle\u306e\u5834\u5408<\/strong>\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=\"\">dependencies {\n    implementation 'com.google.guava:guava:32.1.3-jre'\n}<\/pre>\n\n\n\n<p><strong>Android \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408<\/strong>\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=\"\">dependencies {\n    implementation 'com.google.guava:guava:32.1.3-android'\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u4e92\u63db\u6027\u306e\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<p>Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5c0e\u5165\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u4e92\u63db\u6027\u306b\u95a2\u3059\u308b\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n\n\n<div id=\"id-a7a9891c-dcd6-499f-93c8-c5797795aff2\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Java \u30d0\u30fc\u30b8\u30e7\u30f3<\/th><th>\u63a8\u5968 Guava \u30d0\u30fc\u30b8\u30e7\u30f3<\/th><th>\u4e3b\u306a\u7279\u5fb4<\/th><\/tr><\/thead><tbody><tr><td>Java 8+<\/td><td>32.1.3-jre<\/td><td>\u6700\u65b0\u306e\u6a5f\u80fd\u3068\u30d0\u30b0\u4fee\u6b63\u3092\u542b\u3080<\/td><\/tr><tr><td>Java 7<\/td><td>21.0<\/td><td>\u30ec\u30ac\u30b7\u30fc\u30b5\u30dd\u30fc\u30c8<\/td><\/tr><tr><td>Android<\/td><td>32.1.3-android<\/td><td>Android\u6700\u9069\u5316\u7248<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p class=\"is-style-sango-paragraph-exclamation-alt\">\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d0\u30fc\u30b8\u30e7\u30f3\u9078\u629e<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306eJava\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u9069\u5408\u3057\u305fGuava\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u9078\u629e<\/li>\n\n\n\n<li>\u65e2\u5b58\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u306e\u4e92\u63db\u6027\u3092\u78ba\u8a8d<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30e2\u30b8\u30e5\u30fc\u30eb\u69cb\u6210<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5fc5\u8981\u306a\u6a5f\u80fd\u306e\u307f\u3092\u542b\u3080\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u9078\u629e<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u7528\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u5225\u9014\u5c0e\u5165\u3092\u691c\u8a0e<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u521d\u671f\u8a2d\u5b9a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/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\u8d77\u52d5\u6642\u306e\u63a8\u5968\u8a2d\u5b9a\n   public class Application {\n       static {\n           \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u8a2d\u5b9a\n           CacheBuilder.newBuilder()\n               .concurrencyLevel(4)\n               .initialCapacity(100);\n\n           \/\/ \u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30ab\u30b9\u30bf\u30e0\u30bb\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u8ffd\u52a0\n       }\n   }<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u9069\u5207\u306b\u884c\u3046\u3053\u3068\u3067\u3001Guava\u306e\u6a5f\u80fd\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3067\u304d\u308b\u74b0\u5883\u304c\u6574\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-6\">Guava\u304c\u63d0\u4f9b\u3059\u308b7\u3064\u306e\u5f37\u529b\u306a\u6a5f\u80fd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">Collections\uff1a\u3088\u308a\u67d4\u8edf\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c<\/h3>\n\n\n\n<p>Guava\u306f\u3001Java\u306e\u6a19\u6e96\u30b3\u30ec\u30af\u30b7\u30e7\u30f3API\u3092\u5927\u5e45\u306b\u62e1\u5f35\u3057\u3001\u3088\u308a\u76f4\u611f\u7684\u3067\u5f37\u529b\u306a\u64cd\u4f5c\u3092\u63d0\u4f9b\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=\"\">\/\/ \u30ea\u30b9\u30c8\u306e\u4f5c\u6210\u3068\u64cd\u4f5c\nList&lt;String&gt; list = Lists.newArrayList(\"apple\", \"banana\", \"orange\");\n\n\n\/\/ \u8907\u6570\u306e\u64cd\u4f5c\u3092\u9023\u9396\u7684\u306b\u5b9f\u884c\nList&lt;String&gt; processed = list.stream()\n    .filter(fruit -&gt; fruit.length() &gt; 5)\n    .map(String::toUpperCase)\n    .collect(Collectors.toList());\n\n\/\/ \u591a\u6b21\u5143\u30ea\u30b9\u30c8\u306e\u7c21\u5358\u306a\u4f5c\u6210\nList&lt;List&lt;String&gt;&gt; matrix = Lists.partition(list, 2); \/\/ 2\u8981\u7d20\u305a\u3064\u306b\u5206\u5272\n\n\/\/ \u578b\u5b89\u5168\u306a\u96c6\u5408\u6f14\u7b97\nSets.intersection(setA, setB);  \/\/ \u7a4d\u96c6\u5408\nSets.union(setA, setB);        \/\/ \u548c\u96c6\u5408\nSets.difference(setA, setB);   \/\/ \u5dee\u96c6\u5408<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">Immutable Collections\uff1a\u4e0d\u5909\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u5805\u7262\u6027\u5411\u4e0a<\/h3>\n\n\n\n<p>\u4e0d\u5909\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u6027\u3068\u4e88\u6e2c\u53ef\u80fd\u6027\u304c\u5411\u4e0a\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=\"\">\/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30ea\u30b9\u30c8\u306e\u4f5c\u6210\nImmutableList&lt;String&gt; immutableList = ImmutableList.of(\"a\", \"b\", \"c\");\n\n\/\/ \u30d3\u30eb\u30c0\u30fc\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u305f\u4f5c\u6210\nImmutableSet&lt;String&gt; immutableSet = ImmutableSet.&lt;String&gt;builder()\n    .add(\"x\")\n    .addAll(Arrays.asList(\"y\", \"z\"))\n    .build();\n\n\/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30de\u30c3\u30d7\u306e\u4f5c\u6210\nImmutableMap&lt;String, Integer&gt; immutableMap = ImmutableMap.of(\n    \"key1\", 1,\n    \"key2\", 2\n);<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">Cache\uff1a\u9ad8\u6027\u80fd\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u80fd<\/h3>\n\n\n\n<p>Guava\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u80fd\u306f\u3001\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\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=\"\">\/\/ \u57fa\u672c\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u8a2d\u5b9a\nLoadingCache&lt;String, User&gt; userCache = CacheBuilder.newBuilder()\n    .maximumSize(1000)                \/\/ \u6700\u5927\u30a8\u30f3\u30c8\u30ea\u6570\n    .expireAfterWrite(10, TimeUnit.MINUTES) \/\/ \u6709\u52b9\u671f\u9650\n    .removalListener(notification -&gt; {\n        \/\/ \u30a8\u30f3\u30c8\u30ea\u524a\u9664\u6642\u306e\u51e6\u7406\n        System.out.println(\"Removed: \" + notification.getKey());\n    })\n    .build(new CacheLoader&lt;String, User&gt;() {\n        @Override\n        public User load(String key) {\n            \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30df\u30b9\u6642\u306e\u30c7\u30fc\u30bf\u53d6\u5f97\u30ed\u30b8\u30c3\u30af\n            return userService.getUser(key);\n        }\n    });\n\n\/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4f7f\u7528\nUser user = userCache.get(\"userId\");  \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u304b\u3089\u53d6\u5f97or\u751f\u6210<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">Strings\uff1a\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u52b9\u7387\u5316<\/h3>\n\n\n\n<p>\u6587\u5b57\u5217\u64cd\u4f5c\u3092\u7c21\u6f54\u304b\u3064\u52b9\u7387\u7684\u306b\u884c\u3046\u305f\u3081\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u3092\u63d0\u4f9b\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=\"\">\/\/ \u6587\u5b57\u5217\u306e\u7d50\u5408\nString joined = Joiner.on(\", \")\n    .skipNulls()\n    .join(Arrays.asList(\"Java\", null, \"Guava\")); \/\/ \"Java, Guava\"\n\n\/\/ \u6587\u5b57\u5217\u306e\u5206\u5272\nList&lt;String&gt; parts = Splitter.on(',')\n    .trimResults()\n    .omitEmptyStrings()\n    .splitToList(\"foo,  bar,,   baz\"); \/\/ [\"foo\", \"bar\", \"baz\"]\n\n\/\/ \u6587\u5b57\u5217\u306e\u51e6\u7406\nString processed = CharMatcher.whitespace().collapseFrom(\"multiple   spaces\", ' ');<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">Preconditions\uff1a\u5805\u7262\u306a\u4e8b\u524d\u6761\u4ef6\u30c1\u30a7\u30c3\u30af<\/h3>\n\n\n\n<p>\u30e1\u30bd\u30c3\u30c9\u306e\u5165\u529b\u5024\u3092\u52b9\u7387\u7684\u306b\u691c\u8a3c\u3057\u3001\u65e9\u671f\u306b\u30a8\u30e9\u30fc\u3092\u691c\u51fa\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=\"\">public void processUser(String userId, User user) {\n    \/\/ \u5fc5\u9808\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30c1\u30a7\u30c3\u30af\n    checkNotNull(userId, \"userId must not be null\");\n    checkNotNull(user, \"user must not be null\");\n\n    \/\/ \u5024\u306e\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\n    checkArgument(user.getAge() &gt;= 0, \"Age must be non-negative\");\n\n    \/\/ \u72b6\u614b\u30c1\u30a7\u30c3\u30af\n    checkState(isInitialized(), \"Service must be initialized\");\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">Optional\uff1a\u3088\u308a\u30a8\u30ec\u30ac\u30f3\u30c8\u306anull\u51e6\u7406<\/h3>\n\n\n\n<p>null\u5024\u3092\u5b89\u5168\u306b\u6271\u3046\u305f\u3081\u306e\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u3092\u63d0\u4f9b\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=\"\">\/\/ Optional\u306e\u4f5c\u6210\u3068\u4f7f\u7528\nOptional&lt;User&gt; user = Optional.of(new User(\"John\"));\n\n\/\/ \u5024\u306e\u5b58\u5728\u30c1\u30a7\u30c3\u30af\u3068\u53d6\u5f97\nif (user.isPresent()) {\n    processUser(user.get());\n}\n\n\/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u8a2d\u5b9a\nUser defaultUser = user.or(new User(\"Anonymous\"));\n\n\/\/ \u6761\u4ef6\u4ed8\u304d\u51e6\u7406\nuser.ifPresent(u -&gt; System.out.println(u.getName()));<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">EventBus\uff1a\u758e\u7d50\u5408\u306a\u30a4\u30d9\u30f3\u30c8\u51e6\u7406<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u9593\u306e\u901a\u4fe1\u3092\u758e\u7d50\u5408\u306b\u4fdd\u3061\u306a\u304c\u3089\u5b9f\u88c5\u3067\u304d\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=\"\">\/\/ \u30a4\u30d9\u30f3\u30c8\u30d0\u30b9\u306e\u4f5c\u6210\nEventBus eventBus = new EventBus(\"main\");\n\n\/\/ \u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u306e\u5b9a\u7fa9\npublic class UserEventListener {\n    @Subscribe\n    public void handleUserCreated(UserCreatedEvent event) {\n        \/\/ \u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u30ed\u30b8\u30c3\u30af\n        System.out.println(\"User created: \" + event.getUser().getName());\n    }\n}\n\n\/\/ \u30ea\u30b9\u30ca\u30fc\u306e\u767b\u9332\neventBus.register(new UserEventListener());\n\n\/\/ \u30a4\u30d9\u30f3\u30c8\u306e\u767a\u884c\neventBus.post(new UserCreatedEvent(new User(\"Alice\")));<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6a5f\u80fd\u306f\u3001\u305d\u308c\u305e\u308c\u304c\u5f37\u529b\u3067\u3042\u308a\u306a\u304c\u3089\u3001\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3055\u3089\u306b\u5927\u304d\u306a\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001Immutable Collections\u3068Preconditions\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306aAPI\u3092\u8a2d\u8a08\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-14\">\u5b9f\u8df5\u7684\u306aGuava\u6d3b\u7528\u4f8b\uff1a\u30b3\u30fc\u30c9\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u8907\u96d1\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c\u3092\u52b9\u7387\u7684\u306b\u5b9f\u88c5\u3059\u308b\u4f8b\u3092\u793a\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=\"\">public class UserService {\n    \/\/ \u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5b9f\u88c5\n    private final ImmutableMap&lt;String, User&gt; userCache;\n\n    public UserService(List&lt;User&gt; users) {\n        \/\/ Map\u3092Builder\u30d1\u30bf\u30fc\u30f3\u3067\u69cb\u7bc9\n        this.userCache = users.stream()\n            .collect(ImmutableMap.toImmutableMap(\n                User::getId,\n                user -&gt; user,\n                (existing, replacement) -&gt; existing  \/\/ \u91cd\u8907\u6642\u306f\u65e2\u5b58\u3092\u512a\u5148\n            ));\n    }\n\n    \/\/ \u8907\u6570\u6761\u4ef6\u3067\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3068\u5909\u63db\n    public List&lt;String&gt; findActiveUserEmails(List&lt;User&gt; users) {\n        return users.stream()\n            .filter(user -&gt; user.isActive())\n            .filter(user -&gt; user.getEmailVerified())\n            .map(User::getEmail)\n            .collect(ImmutableList.toImmutableList());\n    }\n\n    \/\/ \u8907\u96d1\u306a\u96c6\u5408\u6f14\u7b97\u306e\u5b9f\u88c5\n    public Set&lt;String&gt; findCommonTags(User user1, User user2) {\n        return Sets.intersection(\n            ImmutableSet.copyOf(user1.getTags()),\n            ImmutableSet.copyOf(user2.getTags())\n        );\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u30ad\u30e3\u30c3\u30b7\u30e5\u5b9f\u88c5\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h3>\n\n\n\n<p>\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u30d1\u30bf\u30fc\u30f3\u3092\u793a\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=\"\">public class ProductService {\n    private final LoadingCache&lt;String, Product&gt; productCache;\n\n    public ProductService(ProductRepository repository) {\n        this.productCache = CacheBuilder.newBuilder()\n            .maximumSize(10000)\n            .expireAfterWrite(1, TimeUnit.HOURS)\n            .recordStats()  \/\/ \u7d71\u8a08\u60c5\u5831\u306e\u8a18\u9332\n            .build(new CacheLoader&lt;String, Product&gt;() {\n                @Override\n                public Product load(String productId) {\n                    return repository.findById(productId)\n                        .orElseThrow(() -&gt; new ProductNotFoundException(productId));\n                }\n\n                \/\/ \u30d0\u30c3\u30c1\u8aad\u307f\u8fbc\u307f\u306e\u6700\u9069\u5316\n                @Override\n                public Map&lt;String, Product&gt; loadAll(Iterable&lt;? extends String&gt; keys) {\n                    return repository.findAllById(keys);\n                }\n            });\n    }\n\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u7d71\u8a08\u306e\u53d6\u5f97\n    public CacheStats getCacheStats() {\n        return productCache.stats();\n    }\n\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u624b\u52d5\u66f4\u65b0\n    public void updateProduct(Product product) {\n        productCache.put(product.getId(), product);\n    }\n\n    \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\n    public ImmutableMap&lt;String, Product&gt; getProducts(List&lt;String&gt; productIds) {\n        try {\n            return ImmutableMap.copyOf(productCache.getAll(productIds));\n        } catch (ExecutionException e) {\n            throw new RuntimeException(\"Failed to load products\", e);\n        }\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>EventBus\u3092\u4f7f\u7528\u3057\u305f\u758e\u7d50\u5408\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u5b9f\u88c5\u4f8b\u3092\u793a\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=\"\">\/\/ \u30a4\u30d9\u30f3\u30c8\u306e\u5b9a\u7fa9\npublic class OrderEvent {\n    private final Order order;\n    private final String eventType;\n\n    \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3001\u30b2\u30c3\u30bf\u30fc\u7701\u7565\n}\n\n\/\/ \u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u30fc\u306e\u5b9f\u88c5\n@Singleton\npublic class OrderProcessor {\n    private final EventBus eventBus;\n    private final NotificationService notificationService;\n\n    @Inject\n    public OrderProcessor(EventBus eventBus, NotificationService notificationService) {\n        this.eventBus = eventBus;\n        this.notificationService = notificationService;\n        eventBus.register(this);\n    }\n\n    @Subscribe\n    public void handleOrderCreated(OrderEvent event) {\n        if (\"CREATED\".equals(event.getEventType())) {\n            \/\/ \u6ce8\u6587\u4f5c\u6210\u6642\u306e\u51e6\u7406\n            notificationService.sendOrderConfirmation(event.getOrder());\n\n            \/\/ \u5728\u5eab\u30c1\u30a7\u30c3\u30af\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u884c\n            eventBus.post(new InventoryCheckEvent(event.getOrder()));\n        }\n    }\n\n    @Subscribe\n    public void handleOrderCancelled(OrderEvent event) {\n        if (\"CANCELLED\".equals(event.getEventType())) {\n            \/\/ \u6ce8\u6587\u30ad\u30e3\u30f3\u30bb\u30eb\u6642\u306e\u51e6\u7406\n            notificationService.sendOrderCancellationNotice(event.getOrder());\n\n            \/\/ \u5728\u5eab\u623b\u3057\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u884c\n            eventBus.post(new InventoryRestoreEvent(event.getOrder()));\n        }\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u4ee5\u4e0b\u306e\u5229\u70b9\u3092\u3082\u305f\u3089\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\">\u5229\u70b9<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306e\u6539\u5584<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u5805\u7262\u5316<\/li>\n\n\n\n<li>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<p>\u7279\u306b\u5927\u898f\u6a21\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-18\">Guava\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u6700\u9069\u5316<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u5404\u6a5f\u80fd\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027<\/h3>\n\n\n\n<p>Guava\u306e\u5404\u6a5f\u80fd\u306b\u306f\u3001\u305d\u308c\u305e\u308c\u7279\u6709\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u8981\u6a5f\u80fd\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027\u3068\u6700\u9069\u306a\u4f7f\u7528\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n<div id=\"id-58a1605f-2b81-46bd-922b-27a3c7bf94b1\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6a5f\u80fd<\/th><th>\u6642\u9593\u8907\u96d1\u5ea6<\/th><th>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf<\/th><th>\u63a8\u5968\u4f7f\u7528\u30b7\u30ca\u30ea\u30aa<\/th><\/tr><\/thead><tbody><tr><td>ImmutableCollections<\/td><td>\u751f\u6210\u6642O(n)<\/td><td>\u4f4e\uff5e\u4e2d<\/td><td>\u983b\u7e41\u306a\u8aad\u307f\u53d6\u308a\u3001\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u8981\u4ef6<\/td><\/tr><tr><td>Cache<\/td><td>\u8aad\u307f\u66f8\u304dO(1)<\/td><td>\u8a2d\u5b9a\u306b\u4f9d\u5b58<\/td><td>\u983b\u7e41\u306a\u30a2\u30af\u30bb\u30b9\u3001\u30b3\u30b9\u30c8\u306e\u9ad8\u3044\u8a08\u7b97<\/td><\/tr><tr><td>EventBus<\/td><td>\u914d\u4fe1\u6642O(n)<\/td><td>\u4f4e<\/td><td>\u758e\u7d50\u5408\u8a2d\u8a08\u3001\u4e2d\u898f\u6a21\u30a4\u30d9\u30f3\u30c8\u6570<\/td><\/tr><tr><td>MultiMap<\/td><td>\u64cd\u4f5c\u6642O(1)<\/td><td>\u4e2d<\/td><td>1\u5bfe\u591a\u306e\u30de\u30c3\u30d4\u30f3\u30b0\u8981\u4ef6<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-20\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\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=\"\">LoadingCache&lt;String, Value&gt; cache = CacheBuilder.newBuilder()\n    .maximumSize(10000)                 \/\/ \u30b5\u30a4\u30ba\u5236\u9650\n    .softValues()                       \/\/ \u30e1\u30e2\u30ea\u5727\u8feb\u6642\u306b\u89e3\u653e\n    .recordStats()                      \/\/ \u7d71\u8a08\u53ce\u96c6\n    .build(new CacheLoader&lt;String, Value&gt;() {\n        @Override\n        public Value load(String key) {\n            return computeValue(key);\n        }\n    });\n\n\/\/ \u5b9a\u671f\u7684\u306a\u7d71\u8a08\u78ba\u8a8d\nCacheStats stats = cache.stats();\nSystem.out.printf(\"Hit rate: %.2f%n\", stats.hitRate());<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\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=\"\">\/\/ \u521d\u671f\u5bb9\u91cf\u306e\u9069\u5207\u306a\u8a2d\u5b9a\nList&lt;String&gt; list = Lists.newArrayListWithCapacity(expectedSize);\nMap&lt;String, Integer&gt; map = Maps.newHashMapWithExpectedSize(expectedSize);\n\n\/\/ \u30e1\u30e2\u30ea\u52b9\u7387\u306e\u826f\u3044\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\nImmutableList&lt;String&gt; optimizedList = ImmutableList.&lt;String&gt;builder()\n    .addAll(largeCollection)\n    .build();<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u9632\u6b62<\/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=\"\">\/\/ WeakHashMap\u3092\u4f7f\u7528\u3057\u305f\u53c2\u7167\u7ba1\u7406\nMap&lt;Key, Value&gt; cache = new MapMaker()\n    .weakKeys()              \/\/ \u30ad\u30fc\u3092\u5f31\u53c2\u7167\u306b\n    .weakValues()            \/\/ \u5024\u3092\u5f31\u53c2\u7167\u306b\n    .makeMap();\n\n\/\/ \u30ea\u30b9\u30ca\u30fc\u767b\u9332\u89e3\u9664\u306e\u78ba\u5b9f\u306a\u5b9f\u884c\nEventBus eventBus = new EventBus();\ntry {\n    eventBus.register(listener);\n    \/\/ \u51e6\u7406\n} finally {\n    eventBus.unregister(listener);\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e8b\u524d\u521d\u671f\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u521d\u671f\u30b5\u30a4\u30ba\u3092\u9069\u5207\u306b\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30a6\u30a9\u30fc\u30e0\u30a2\u30c3\u30d7\u3092\u5b9f\u65bd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30e1\u30e2\u30ea\u7ba1\u7406<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u8981\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u89e3\u653e<\/li>\n\n\n\n<li>WeakReference\/SoftReference\u306e\u9069\u5207\u306a\u4f7f\u7528<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30a4\u30ba\u306e\u5b9a\u671f\u7684\u306a\u76e3\u8996<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u51e6\u7406\u306e\u52b9\u7387\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d0\u30c3\u30c1\u51e6\u7406\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u4e0d\u8981\u306a\u5909\u63db\u306e\u524a\u6e1b<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u9078\u629e<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30e2\u30cb\u30bf\u30ea\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=\"\">\/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u4f8b\npublic class CacheMonitor {\n    private final LoadingCache&lt;String, Value&gt; cache;\n\n    public void logStats() {\n        CacheStats stats = cache.stats();\n        logger.info(\"Cache stats: hits={}, misses={}, size={}\",\n            stats.hitCount(),\n            stats.missCount(),\n            cache.size());\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u3092\u9069\u5207\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u6a5f\u80fd\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3057\u306a\u304c\u3089\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6027\u80fd\u3092\u7dad\u6301\u30fb\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-21\">Java\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3068Guava\u306e\u4f7f\u3044\u5206\u3051<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u6a5f\u80fd\u306e\u91cd\u8907\u3068\u9078\u629e\u57fa\u6e96<\/h3>\n\n\n\n<p>Java\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3068Guava\u306b\u306f\u6a5f\u80fd\u306e\u91cd\u8907\u304c\u5b58\u5728\u3057\u307e\u3059\u304c\u3001\u305d\u308c\u305e\u308c\u306b\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u6bd4\u8f03\u8868\u3092\u53c2\u8003\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u9078\u629e\u3092\u884c\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n<div id=\"id-c927cd00-e8c3-4072-85ac-b821c2b6df5c\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6a5f\u80fd\u30ab\u30c6\u30b4\u30ea<\/th><th>Java\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea<\/th><th>Guava<\/th><th>\u63a8\u5968\u3055\u308c\u308b\u4f7f\u7528\u30b7\u30ca\u30ea\u30aa<\/th><\/tr><\/thead><tbody><tr><td>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c<\/td><td>Collections, Stream API<\/td><td>ImmutableCollections, Multimap<\/td><td>Guava\uff1a\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u6027\u304c\u91cd\u8981\u306a\u5834\u5408<br>\u6a19\u6e96\uff1a\u30b7\u30f3\u30d7\u30eb\u306a\u64cd\u4f5c\u306e\u5834\u5408<\/td><\/tr><tr><td>Optional<\/td><td>Optional<\/td><td>Optional<\/td><td>\u6a19\u6e96\uff1a\u57fa\u672c\u7684\u306anull\u51e6\u7406<br>Guava\uff1a\u3088\u308a\u8c4a\u5bcc\u306a\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u304c\u5fc5\u8981\u306a\u5834\u5408<\/td><\/tr><tr><td>\u6587\u5b57\u5217\u51e6\u7406<\/td><td>String, StringBuilder<\/td><td>Joiner, Splitter<\/td><td>Guava\uff1a\u8907\u96d1\u306a\u6587\u5b57\u5217\u64cd\u4f5c<br>\u6a19\u6e96\uff1a\u57fa\u672c\u7684\u306a\u9023\u7d50\u3084\u5206\u5272<\/td><\/tr><tr><td>\u30ad\u30e3\u30c3\u30b7\u30e5<\/td><td>ConcurrentHashMap<\/td><td>Cache<\/td><td>Guava\uff1a\u9ad8\u5ea6\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u80fd\u304c\u5fc5\u8981\u306a\u5834\u5408<\/td><\/tr><tr><td>\u30a4\u30d9\u30f3\u30c8\u51e6\u7406<\/td><td>\u306a\u3057<\/td><td>EventBus<\/td><td>Guava\uff1a\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u5834\u5408<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u5224\u65ad\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u7279\u6027\u306b\u57fa\u3065\u3044\u3066\u3001\u4ee5\u4e0b\u306e\u5224\u65ad\u57fa\u6e96\u3092\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u898f\u6a21\u3068\u8907\u96d1\u6027<\/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=\"\">\/\/ \u5c0f\u898f\u6a21\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\uff1a\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u5341\u5206\nList&lt;String&gt; items = new ArrayList&lt;&gt;();\nitems.stream()\n    .filter(item -&gt; item.length() &gt; 5)\n    .collect(Collectors.toList());\n\n\/\/ \u5927\u898f\u6a21\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\uff1aGuava\u306e\u6a5f\u80fd\u3092\u6d3b\u7528\nImmutableList&lt;String&gt; items = ImmutableList.&lt;String&gt;builder()\n    .addAll(sourceList)\n    .build();\nMultimap&lt;String, User&gt; usersByRole = ArrayListMultimap.create();<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8981\u4ef6<\/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=\"\">\/\/ \u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\uff1a\u30b7\u30f3\u30d7\u30eb\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\nMap&lt;String, Value&gt; simpleCache = new ConcurrentHashMap&lt;&gt;();\n\n\/\/ Guava\uff1a\u9ad8\u5ea6\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u8981\u4ef6\nLoadingCache&lt;String, Value&gt; advancedCache = CacheBuilder.newBuilder()\n    .maximumSize(1000)\n    .expireAfterWrite(10, TimeUnit.MINUTES)\n    .build(new CacheLoader&lt;String, Value&gt;() {\n        @Override\n        public Value load(String key) {\n            return computeExpensiveValue(key);\n        }\n    });<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c1\u30fc\u30e0\u7d4c\u9a13\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\uff1a\u5b66\u7fd2\u30b3\u30b9\u30c8\u304c\u4f4e\u304f\u3001\u65b0\u30e1\u30f3\u30d0\u30fc\u306e\u53c2\u5165\u304c\u5bb9\u6613<\/li>\n\n\n\n<li>Guava\uff1a\u3088\u308a\u5f37\u529b\u306a\u6a5f\u80fd\u3060\u304c\u3001\u30c1\u30fc\u30e0\u306e\u5b66\u7fd2\u6642\u9593\u304c\u5fc5\u8981<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u79fb\u884c\u30b3\u30b9\u30c8\u306e\u8003\u616e<\/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=\"\">\/\/ \u6bb5\u968e\u7684\u306a\u79fb\u884c\u306e\u4f8b\npublic class LegacyCompatibilityService {\n    \/\/ \u65e2\u5b58\u306e\u30b3\u30fc\u30c9\uff08\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\uff09\n    private final Map&lt;String, User&gt; userMap = new HashMap&lt;&gt;();\n\n    \/\/ \u65b0\u3057\u3044Guava\u30d9\u30fc\u30b9\u306e\u5b9f\u88c5\n    private final LoadingCache&lt;String, User&gt; userCache = CacheBuilder.newBuilder()\n        .maximumSize(1000)\n        .build(new CacheLoader&lt;String, User&gt;() {\n            @Override\n            public User load(String key) {\n                return userMap.get(key);\n            }\n        });\n\n    \/\/ \u6bb5\u968e\u7684\u306b\u79fb\u884c\n    public User getUser(String id) {\n        try {\n            return userCache.get(id);\n        } catch (ExecutionException e) {\n            return userMap.get(id);  \/\/ \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\n        }\n    }\n}<\/pre>\n\n\n\n<p>\u9078\u629e\u306e\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u539f\u5247\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\">\u8003\u616e\u70b9<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u5341\u5206\u306a\u5834\u5408\u306f\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>\u7279\u5b9a\u306e\u9ad8\u5ea6\u306a\u6a5f\u80fd\u304c\u5fc5\u8981\u306a\u5834\u5408\u306fGuava\u3092\u691c\u8a0e<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u8003\u616e<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u306e\u6280\u8853\u529b\u3068\u5b66\u7fd2\u30b3\u30b9\u30c8\u3092\u8a55\u4fa1<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u6e96\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u9078\u629e\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-24\">Guava\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-25\">\u3088\u304f\u3042\u308b\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u306e\u554f\u984c<\/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\u306e\u3042\u308b\u30b3\u30fc\u30c9\nEventBus eventBus = new EventBus();\neventBus.register(this);  \/\/ \u767b\u9332\u89e3\u9664\u3092\u5fd8\u308c\u3084\u3059\u3044\n\n\/\/ \u89e3\u6c7a\u7b56\uff1atry-finally\u30d6\u30ed\u30c3\u30af\u3067\u306e\u78ba\u5b9f\u306a\u767b\u9332\u89e3\u9664\npublic class SafeEventHandler {\n    private final EventBus eventBus;\n\n    public void handleEvents() {\n        try {\n            eventBus.register(this);\n            \/\/ \u30a4\u30d9\u30f3\u30c8\u51e6\u7406\n        } finally {\n            eventBus.unregister(this);  \/\/ \u78ba\u5b9f\u306a\u767b\u9332\u89e3\u9664\n        }\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u554f\u984c<\/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\uff1a\u7121\u5236\u9650\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\nCache&lt;String, HeavyObject&gt; cache = CacheBuilder.newBuilder().build();  \/\/ \u30b5\u30a4\u30ba\u5236\u9650\u306a\u3057\n\n\/\/ \u89e3\u6c7a\u7b56\uff1a\u9069\u5207\u306a\u5236\u9650\u3068\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\nCache&lt;String, HeavyObject&gt; boundedCache = CacheBuilder.newBuilder()\n    .maximumSize(1000)\n    .expireAfterWrite(1, TimeUnit.HOURS)\n    .removalListener(notification -&gt; \n        logger.info(\"Removed: {}, Cause: {}\", \n            notification.getKey(), \n            notification.getCause()))\n    .build();<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8aa4\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=\"\">\/\/ \u554f\u984c\uff1a\u4e0d\u5fc5\u8981\u306a\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u5909\u63db\nList&lt;String&gt; list = ImmutableList.copyOf(sourceList);  \/\/ \u6bce\u56de\u30b3\u30d4\u30fc\n\n\/\/ \u89e3\u6c7a\u7b56\uff1a\u5fc5\u8981\u306a\u5834\u5408\u306e\u307f\u5909\u63db\npublic class DataContainer {\n    private final ImmutableList&lt;String&gt; items;\n\n    public DataContainer(List&lt;String&gt; source) {\n        \/\/ \u4e00\u5ea6\u3060\u3051\u5909\u63db\n        this.items = ImmutableList.copyOf(source);\n    }\n\n    public List&lt;String&gt; getItems() {\n        return items;  \/\/ \u3059\u3067\u306b\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u6642\u306e\u4e92\u63db\u6027\u7dad\u6301<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d0\u30fc\u30b8\u30e7\u30f3\u4e92\u63db\u6027\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u3057\u3066\u3044\u308bJava\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u306e\u4e92\u63db\u6027\u78ba\u8a8d<\/li>\n\n\n\n<li>\u975e\u63a8\u5968API\u306e\u4f7f\u7528\u6709\u7121\u30c1\u30a7\u30c3\u30af<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b9\u30a4\u30fc\u30c8\u306e\u5b9f\u884c<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c6\u30b9\u30c8\u306e\u5b9f\u65bd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b89\u5168\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u624b\u9806<\/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=\"\">\/\/ \u6bb5\u968e\u7684\u306a\u79fb\u884c\u306e\u4f8b\npublic class VersionCompatibilityWrapper {\n    \/\/ \u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306eAPI\n    private final Cache&lt;String, Value&gt; oldCache;\n\n    \/\/ \u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306eAPI\n    private final LoadingCache&lt;String, Value&gt; newCache;\n\n    public Value get(String key) {\n        try {\n            return newCache.get(key);\n        } catch (Exception e) {\n            \/\/ \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u51e6\u7406\n            return oldCache.getIfPresent(key);\n        }\n    }\n\n    \/\/ \u6bb5\u968e\u7684\u306a\u6a5f\u80fd\u5207\u308a\u66ff\u3048\n    private boolean useNewFeatures() {\n        return FeatureFlags.isEnabled(\"USE_NEW_GUAVA_FEATURES\");\n    }\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u3068\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u8a73\u7d30\u306a\u30ed\u30b0\u8a18\u9332<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e1\u30c8\u30ea\u30af\u30b9\u306e\u53ce\u96c6<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u76e3\u8996<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30a8\u30e9\u30fc\u51e6\u7406<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u9069\u5207\u306a\u4f8b\u5916\u51e6\u7406<\/li>\n\n\n\n<li>\u30b0\u30ec\u30fc\u30b9\u30d5\u30eb\u30c7\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3<\/li>\n\n\n\n<li>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u5b9f\u88c5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30c6\u30b9\u30c8\u6226\u7565<\/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=\"\">@Test\npublic void testCacheEviction() {\n    Cache&lt;String, String&gt; cache = CacheBuilder.newBuilder()\n        .maximumSize(2)\n        .build();\n\n    cache.put(\"key1\", \"value1\");\n    cache.put(\"key2\", \"value2\");\n    cache.put(\"key3\", \"value3\");  \/\/ key1\u304cEvict\u3055\u308c\u308b\n\n    assertNull(cache.getIfPresent(\"key1\"));\n    assertNotNull(cache.getIfPresent(\"key2\"));\n    assertNotNull(cache.getIfPresent(\"key3\"));\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3068\u89e3\u6c7a\u7b56\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u3067\u3001Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-27\">\u307e\u3068\u3081\uff1aGuava\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u6d3b\u7528\u3067\u5b9f\u73fe\u3059\u308b\u9ad8\u54c1\u8cea\u306aJava\u958b\u767a<\/h2>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Google\u304c\u958b\u767a\u3057\u305fGuava\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u5305\u62ec\u7684\u306a\u6d3b\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u4e3b\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u4ee5\u4e0b\u306b\u307e\u3068\u3081\u307e\u3059\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-28\">Guava\u63a1\u7528\u306e\u30e1\u30ea\u30c3\u30c8<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u8c4a\u5bcc\u306a\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u6a5f\u80fd\u306b\u3088\u308b\u5197\u9577\u306a\u30b3\u30fc\u30c9\u306e\u524a\u6e1b<\/li>\n\n\n\n<li>\u76f4\u611f\u7684\u306aAPI\u306b\u3088\u308b\u53ef\u8aad\u6027\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u5805\u7262\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u306e\u63d0\u4f9b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30b3\u30fc\u30c9\u54c1\u8cea\u306e\u6539\u5584<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u3088\u308b\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/li>\n\n\n\n<li>\u7d71\u4e00\u7684\u306a\u30a8\u30e9\u30fc\u51e6\u7406\u3068\u4e8b\u524d\u6761\u4ef6\u30c1\u30a7\u30c3\u30af<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u5bb9\u6613\u6027\u306e\u5411\u4e0a<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u52b9\u7387\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u69cb<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u5b9f\u88c5\u306e\u5b9f\u73fe<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-29\">\u5b9f\u8df5\u306e\u305f\u3081\u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u307e\u305a\u306f\u5c0f\u898f\u6a21\u306a\u6a5f\u80fd\u304b\u3089\u6bb5\u968e\u7684\u306b\u5c0e\u5165<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u5185\u3067\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u5171\u6709<\/li>\n\n\n\n<li>\u7d99\u7d9a\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li>\u5b9a\u671f\u7684\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u66f4\u65b0\u3068\u30b3\u30fc\u30c9\u6700\u9069\u5316<\/li>\n<\/ol>\n\n\n\n<p>Guava\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u3001\u73fe\u4ee3\u306eJava\u958b\u767a\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u306a\u30c4\u30fc\u30eb\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u52b9\u7387\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002\u305c\u3072\u672c\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u305f\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3084\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u53c2\u8003\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u54c1\u8cea\u5411\u4e0a\u306b\u304a\u5f79\u7acb\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u6700\u5f8c\u306b\u3001Guava\u306fJava\u306e\u9032\u5316\u3068\u3068\u3082\u306b\u7d99\u7d9a\u7684\u306b\u6539\u5584\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u5b9a\u671f\u7684\u306a\u60c5\u5831\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u63a8\u5968\u3057\u307e\u3059\u3002\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3084\u30ea\u30ea\u30fc\u30b9\u30ce\u30fc\u30c8\u3092\u78ba\u8a8d\u3057\u3001\u6700\u65b0\u306e\u6a5f\u80fd\u3084\u6539\u5584\u70b9\u3092\u7a4d\u6975\u7684\u306b\u6d3b\u7528\u3057\u3066\u3044\u304f\u3053\u3068\u3067\u3001\u3055\u3089\u306a\u308b\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><\/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-1063","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\/1063","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=1063"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1063\/revisions"}],"predecessor-version":[{"id":1065,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1063\/revisions\/1065"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}