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<li>概要: </li>
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<li>字段 | </li>
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<li>必需 | </li>
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<li><a href="#annotation.type.optional.element.summary">可选</a></li>
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<li>详细资料: </li>
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<li>字段 | </li>
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<li><a href="#annotation.type.element.detail">元素</a></li>
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<div class="subTitle"><span class="packageLabelInType">程序包</span> <a href="package-summary.html">org.redkale.annotation</a></div>
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<h2 title="注释类型 ResourceChanged" class="title">注释类型 ResourceChanged</h2>
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<pre><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/annotation/Documented.html?is-external=true" title="java.lang.annotation中的类或接口" class="externalLink">@Documented</a>
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<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/annotation/Target.html?is-external=true" title="java.lang.annotation中的类或接口" class="externalLink">@Target</a>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/annotation/ElementType.html?is-external=true#METHOD" title="java.lang.annotation中的类或接口" class="externalLink">METHOD</a>)
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public @interface <span class="memberNameLabel">ResourceChanged</span></pre>
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<div class="block">@Resource资源被更新时的监听事件, 本注解只能标记在方法参数为ResourceEvent[]上 <br>
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注意: 一个类只能存在一个@ResourceChanged的方法， 多余的会被忽略 <br>
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方法在资源被更新以后调用。
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<blockquote>
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<pre>
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public class RecordService implements Service {
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@Resource(name = "record.id")
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private int id;
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@Resource(name = "record.name")
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private String name;
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@ResourceChanged
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private void changeResource(ResourceEvent[] events) {
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for(ResourceEvent event : events) {
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System.out .println("@Resource = " + event.name() + " 资源变更: newVal = " + event.newValue() + ", oldVal = " + event.oldValue());
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}
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}
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public static void main(String[] args) throws Exception {
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ResourceFactory factory = ResourceFactory.create();
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factory.register("record.id", "2345");
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factory.register("record.name", "my old name");
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Record record = new Record();
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factory.inject(record);
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factory.register("record.name", "my new name");
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}
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}
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</pre>
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</blockquote>
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<p>详情见: https://redkale.org</div>
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<dl>
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<dt><span class="simpleTagLabel">作者:</span></dt>
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<dd>zhangjx</dd>
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</dl>
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</li>
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</ul>
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</div>
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<div class="summary">
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<ul class="blockList">
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<li class="blockList">
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<!-- =========== ANNOTATION TYPE OPTIONAL MEMBER SUMMARY =========== -->
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<section role="region">
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<ul class="blockList">
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<li class="blockList"><a id="annotation.type.optional.element.summary">
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</a>
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<h3>可选元素概要</h3>
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<table class="memberSummary">
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<caption><span>可选元素</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">修饰符和类型</th>
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<th class="colSecond" scope="col">可选元素</th>
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<th class="colLast" scope="col">说明</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#different()">different</a></span></code></th>
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<td class="colLast">
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<div class="block">新旧值是否不同时才回调方法 <br>
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true: 新值与旧值不同时才回调ResourceChanged方法 false: 只要执行了ResourceFactory.register 就回调ResourceChanged方法</div>
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</td>
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</tr>
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</table>
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</li>
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</ul>
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</section>
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</li>
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<div class="details">
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<!-- ============ ANNOTATION TYPE MEMBER DETAIL =========== -->
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<section role="region">
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<ul class="blockList">
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<li class="blockList"><a id="annotation.type.element.detail">
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<!-- -->
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</a>
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<h3>元素详细资料</h3>
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<a id="different()">
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<!-- -->
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</a>
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<ul class="blockListLast">
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<li class="blockList">
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<h4>different</h4>
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<pre>boolean different</pre>
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<div class="block">新旧值是否不同时才回调方法 <br>
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true: 新值与旧值不同时才回调ResourceChanged方法 false: 只要执行了ResourceFactory.register 就回调ResourceChanged方法</div>
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<dl>
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<dt><span class="returnLabel">返回:</span></dt>
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<dd>boolean</dd>
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<dt><span class="simpleTagLabel">从以下版本开始:</span></dt>
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<dd>2.7.0</dd>
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</dl>
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<dl>
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<dt>默认值:</dt>
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<dd>true</dd>
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</dl>
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</li>
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</ul>
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</li>
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</ul>
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</section>
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<li>概要: </li>
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<li>字段 | </li>
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<li>必需 | </li>
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<li><a href="#annotation.type.optional.element.summary">可选</a></li>
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