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247 lines
9.4 KiB
HTML
247 lines
9.4 KiB
HTML
<div class="header">
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compact2, compact3
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<div class="subTitle">
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org.w3c.dom
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<h2 class="title" title="Interface UserDataHandler">Interface UserDataHandler</h2>
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<div class="description">
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<hr/> <br/> <pre>public interface <span class="typeNameLabel">UserDataHandler</span></pre>
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<span>当使用Node.setUserData()将对象与节点上的密钥<code>Node.setUserData()</code> ，应用程序可以提供一个处理程序，当对象被关联到的节点被克隆，导入或重命名时，该处理程序将被调用。</span>
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<span>应用程序可以使用它来实现与DOM节点关联的数据的各种行为。</span>
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<span>此接口定义该处理程序。</span>
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<p> <span>另见<a href="http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407">Document Object Model (DOM) Level 3 Core Specification</a> 。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="simpleTagLabel">从以下版本开始：</span>
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</dt>
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<dd>
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DOM 3级
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</dd>
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</dl> </li>
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</ul>
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</div>
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<div class="summary">
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<!-- =========== FIELD SUMMARY =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="field.summary">
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<!-- --> </a> <h3>Field Summary</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Field Summary table, listing fields, and an explanation">
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<caption>
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<span>Fields</span>
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<span class="tabEnd"> </span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Field and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static short</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/w3c/dom/UserDataHandler.html#NODE_ADOPTED">NODE_ADOPTED</a></span></code>
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<div class="block">
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采用节点，采用
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<code>Document.adoptNode()</code> 。
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</div> </td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>static short</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/w3c/dom/UserDataHandler.html#NODE_CLONED">NODE_CLONED</a></span></code>
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<div class="block">
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该节点被克隆，使用
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<code>Node.cloneNode()</code> 。
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</div> </td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static short</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/w3c/dom/UserDataHandler.html#NODE_DELETED">NODE_DELETED</a></span></code>
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<div class="block">
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节点被删除。
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</div> </td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>static short</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/w3c/dom/UserDataHandler.html#NODE_IMPORTED">NODE_IMPORTED</a></span></code>
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<div class="block">
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节点被导入，使用
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<code>Document.importNode()</code> 。
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</div> </td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static short</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/w3c/dom/UserDataHandler.html#NODE_RENAMED">NODE_RENAMED</a></span></code>
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<div class="block">
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节点被重命名，使用
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<code>Document.renameNode()</code> 。
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</div> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul>
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<!-- ========== METHOD SUMMARY =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.summary">
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<!-- --> </a> <h3>方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
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<caption>
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<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t3"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd"> </span></span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor" id="i0">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/w3c/dom/UserDataHandler.html#handle-short-java.lang.String-java.lang.Object-org.w3c.dom.Node-org.w3c.dom.Node-">handle</a></span>(short operation, <a href="../../../java/lang/String.html" title="class in java.lang">String</a> key, <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> data, <a href="../../../org/w3c/dom/Node.html" title="interface in org.w3c.dom">Node</a> src, <a href="../../../org/w3c/dom/Node.html" title="interface in org.w3c.dom">Node</a> dst)</code>
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<div class="block">
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每当注册此处理程序的节点被导入或克隆时，都会调用此方法。
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</div> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul> </li>
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</ul>
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</div>
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<div class="details">
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<ul class="blockList">
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<li class="blockList">
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<!-- ============ FIELD DETAIL =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="field.detail">
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<!-- --> </a> <h3>字段详细信息</h3> <a name="NODE_CLONED">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>NODE_CLONED</h4> <pre>static final short NODE_CLONED</pre>
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<div class="block">
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该节点被克隆，使用
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<code>Node.cloneNode()</code> 。
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</div>
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<dl>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../constant-values.html#org.w3c.dom.UserDataHandler.NODE_CLONED">Constant Field Values</a>
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</dd>
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</dl> </li>
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</ul> <a name="NODE_IMPORTED">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>NODE_IMPORTED</h4> <pre>static final short NODE_IMPORTED</pre>
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<div class="block">
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导入节点，使用
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<code>Document.importNode()</code> 。
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</div>
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<dl>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../constant-values.html#org.w3c.dom.UserDataHandler.NODE_IMPORTED">Constant Field Values</a>
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</dd>
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</dl> </li>
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</ul> <a name="NODE_DELETED">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>NODE_DELETED</h4> <pre>static final short NODE_DELETED</pre>
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<div class="block">
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<span>节点被删除。</span>
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<p> <span><b>注意：</b>这在某些环境中可能不受支持或可能不可靠，例如Java，其中实现对实际删除对象无实际控制。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../constant-values.html#org.w3c.dom.UserDataHandler.NODE_DELETED">Constant Field Values</a>
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</dd>
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</dl> </li>
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</ul> <a name="NODE_RENAMED">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>NODE_RENAMED</h4> <pre>static final short NODE_RENAMED</pre>
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<div class="block">
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该节点被重命名，使用
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<code>Document.renameNode()</code> 。
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</div>
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<dl>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../constant-values.html#org.w3c.dom.UserDataHandler.NODE_RENAMED">Constant Field Values</a>
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</dd>
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</dl> </li>
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</ul> <a name="NODE_ADOPTED">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>NODE_ADOPTED</h4> <pre>static final short NODE_ADOPTED</pre>
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<div class="block">
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采用节点，采用
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<code>Document.adoptNode()</code> 。
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</div>
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<dl>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../constant-values.html#org.w3c.dom.UserDataHandler.NODE_ADOPTED">Constant Field Values</a>
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</dd>
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</dl> </li>
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</ul> </li>
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</ul>
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<!-- ============ METHOD DETAIL ========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.detail">
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<!-- --> </a> <h3>方法详细信息</h3> <a name="handle-short-java.lang.String-java.lang.Object-org.w3c.dom.Node-org.w3c.dom.Node-">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>handle</h4> <pre>void handle(short operation,
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<a href="../../../java/lang/String.html" title="class in java.lang">String</a> key,
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<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> data,
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<a href="../../../org/w3c/dom/Node.html" title="interface in org.w3c.dom">Node</a> src,
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<a href="../../../org/w3c/dom/Node.html" title="interface in org.w3c.dom">Node</a> dst)</pre>
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<div class="block">
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<span>每当注册此处理程序的节点被导入或克隆时，都会调用此方法。</span>
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<br/>
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<span>DOM应用程序不能在UserDataHandler中<code>UserDataHandler</code> 。</span>
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<span>从处理程序中抛出异常的效果是依赖于DOM实现的。</span>
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>operation</code> - 指定在节点上执行的操作类型。
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</dd>
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<dd>
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<code>key</code> - 指定要调用此处理程序的键。
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</dd>
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<dd>
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<code>data</code> - 指定正在调用此处理程序的数据。
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</dd>
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<dd>
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<span><code>src</code> - 指定要克隆，采用，导入或重命名的节点。</span>
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<span>当节点被删除时，这是<code>null</code> 。</span>
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</dd>
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<dd>
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<code>dst</code> - 指定新创建的节点，如果有的话，或
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<code>null</code> 。
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</dd>
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</dl> </li>
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</ul> </li>
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</ul> </li>
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</ul>
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</div>
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</div> |