uTools-Manuals/docs/java/javax/swing/undo/AbstractUndoableEdit.html

<div class="header">
<div class="subTitle">
     javax.swing.undo 
   </div>
<h2 class="title" title="Class AbstractUndoableEdit">Class AbstractUndoableEdit</h2>
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<ul class="inheritance">
<li><a href="../../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
<li>
<ul class="inheritance">
<li>javax.swing.undo.AbstractUndoableEdit</li>
</ul> </li>
</ul>
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<dl>
<dt>
         All Implemented Interfaces: 
       </dt>
<dd>
<span><a href="../../../java/io/Serializable.html" title="java.io中的接口">Serializable</a> ， <a href="../../../javax/swing/undo/UndoableEdit.html" title="javax.swing.undo中的接口">UndoableEdit</a></span>
</dd>
</dl>
<dl>
<dt>
        已知直接子类：
       </dt>
<dd>
<span><a href="../../../javax/swing/text/AbstractDocument.ElementEdit.html" title="javax.swing.text中的类">AbstractDocument.ElementEdit</a> ， <a href="../../../javax/swing/undo/CompoundEdit.html" title="javax.swing.undo中的类">CompoundEdit</a> ， <a href="../../../javax/swing/text/DefaultStyledDocument.AttributeUndoableEdit.html" title="javax.swing.text中的类">DefaultStyledDocument.AttributeUndoableEdit</a> ， <a href="../../../javax/swing/undo/StateEdit.html" title="javax.swing.undo中的类">StateEdit</a></span>
</dd>
</dl>
<hr/> <br/> <pre>public class <span class="typeNameLabel">AbstractUndoableEdit</span>
extends <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a>
implements <a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a>, <a href="../../../java/io/Serializable.html" title="interface in java.io">Serializable</a></pre>
<div class="block">
        UndoableEdit的抽象实现， 
       <code>UndoableEdit</code>对该接口中所有布尔方法的简单响应。 
      </div> </li>
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<!-- =========== FIELD SUMMARY =========== -->
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<li class="blockList"><a name="field.summary">
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Field Summary table, listing fields, and an explanation">
<caption>
<span>Fields</span>
<span class="tabEnd"> </span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected static <a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#RedoName">RedoName</a></span></code>
<div class="block">
<span>字符串返回<code>getRedoPresentationName</code> ;</span>
<span>从Java 2平台v1.3.1开始，此字段不再使用。</span>
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected static <a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#UndoName">UndoName</a></span></code>
<div class="block">
<span>字符串返回<code>getUndoPresentationName</code> ;</span>
<span>从Java 2平台v1.3.1开始，此字段不再使用。</span>
</div> </td>
</tr>
</tbody>
</table> </li>
</ul>
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<caption>
<span>构造方法</span>
<span class="tabEnd"> </span>
</caption>
<tbody>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#AbstractUndoableEdit--">AbstractUndoableEdit</a></span>()</code>
<div class="block">
              创建一个 
             <code>AbstractUndoableEdit</code> ，默认为 
             <code>hasBeenDone</code>和 
             <code>alive</code>到 
             <code>true</code> 。 
            </div> </td>
</tr>
</tbody>
</table> </li>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
<caption>
<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t4"><span><a href="javascript:show(8);">具体的方法</a></span><span class="tabEnd"> </span></span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor" id="i0">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#addEdit-javax.swing.undo.UndoableEdit-">addEdit</a></span>(<a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a> anEdit)</code>
<div class="block">
              此默认实现返回false。 
            </div> </td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#canRedo--">canRedo</a></span>()</code>
<div class="block">
              返回 
             <code>true</code>如果此编辑为 
             <code>alive</code>和 
             <code>hasBeenDone</code>是 
             <code>false</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i2">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#canUndo--">canUndo</a></span>()</code>
<div class="block">
              如果此编辑是 
             <code>alive</code>和 
             <code>hasBeenDone</code>是 
             <code>true</code>则返回true。 
            </div> </td>
</tr>
<tr class="rowColor" id="i3">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#die--">die</a></span>()</code>
<div class="block">
              将 
             <code>alive</code>设为false。 
            </div> </td>
</tr>
<tr class="altColor" id="i4">
<td class="colFirst"><code><a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#getPresentationName--">getPresentationName</a></span>()</code>
<div class="block">
              此默认实现返回“”。 
            </div> </td>
</tr>
<tr class="rowColor" id="i5">
<td class="colFirst"><code><a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#getRedoPresentationName--">getRedoPresentationName</a></span>()</code>
<div class="block">
              使用关键字 
             <code>AbstractUndoableEdit.redoText</code>从默认表中检索值，并返回该值后跟一个空格，后跟 
             <code>getPresentationName</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i6">
<td class="colFirst"><code><a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#getUndoPresentationName--">getUndoPresentationName</a></span>()</code>
<div class="block">
              检索默认表项中的值 
             <code>AbstractUndoableEdit.undoText</code>并返回该值后跟一个空格，其次是 
             <code>getPresentationName</code> 。 
            </div> </td>
</tr>
<tr class="rowColor" id="i7">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#isSignificant--">isSignificant</a></span>()</code>
<div class="block">
              此默认实现返回true。 
            </div> </td>
</tr>
<tr class="altColor" id="i8">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#redo--">redo</a></span>()</code>
<div class="block">
              如果 
             <code>canRedo</code>返回false，则抛出 
             <code>CannotRedoException</code> 。 
            </div> </td>
</tr>
<tr class="rowColor" id="i9">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#replaceEdit-javax.swing.undo.UndoableEdit-">replaceEdit</a></span>(<a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a> anEdit)</code>
<div class="block">
              此默认实现返回false。 
            </div> </td>
</tr>
<tr class="altColor" id="i10">
<td class="colFirst"><code><a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#toString--">toString</a></span>()</code>
<div class="block">
              返回显示和标识此对象属性的字符串。 
            </div> </td>
</tr>
<tr class="rowColor" id="i11">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/swing/undo/AbstractUndoableEdit.html#undo--">undo</a></span>()</code>
<div class="block">
              抛出 
             <code>CannotUndoException</code>如果 
             <code>canUndo</code>回报 
             <code>false</code> 。 
            </div> </td>
</tr>
</tbody>
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<!-- --> </a> <h3>Methods inherited from class java.lang.<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a></h3> <code><a href="../../../java/lang/Object.html#clone--">clone</a>, <a href="../../../java/lang/Object.html#equals-java.lang.Object-">equals</a>, <a href="../../../java/lang/Object.html#finalize--">finalize</a>, <a href="../../../java/lang/Object.html#getClass--">getClass</a>, <a href="../../../java/lang/Object.html#hashCode--">hashCode</a>, <a href="../../../java/lang/Object.html#notify--">notify</a>, <a href="../../../java/lang/Object.html#notifyAll--">notifyAll</a>, <a href="../../../java/lang/Object.html#wait--">wait</a>, <a href="../../../java/lang/Object.html#wait-long-">wait</a>, <a href="../../../java/lang/Object.html#wait-long-int-">wait</a></code></li>
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<!-- ============ FIELD DETAIL =========== -->
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<li class="blockList"><a name="field.detail">
<!-- --> </a> <h3>字段详细信息</h3> <a name="UndoName">
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<ul class="blockList">
<li class="blockList"> <h4>UndoName</h4> <pre>protected static final <a href="../../../java/lang/String.html" title="class in java.lang">String</a> UndoName</pre>
<div class="block">
<span>字符串返回<code>getUndoPresentationName</code> ;</span>
<span>从Java 2平台v1.3.1开始，此字段不再使用。</span>
<span>此值现在已经本地化，并且来自带键<code>AbstractUndoableEdit.undoText</code>的默认值。</span>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../../javax/swing/UIDefaults.html" title="javax.swing中的类"><code>UIDefaults</code></a> ， <a href="../../../constant-values.html#javax.swing.undo.AbstractUndoableEdit.UndoName">Constant Field Values</a></span>
</dd>
</dl> </li>
</ul> <a name="RedoName">
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<ul class="blockListLast">
<li class="blockList"> <h4>RedoName</h4> <pre>protected static final <a href="../../../java/lang/String.html" title="class in java.lang">String</a> RedoName</pre>
<div class="block">
<span>字符串返回<code>getRedoPresentationName</code> ;</span>
<span>从Java 2平台v1.3.1开始，此字段不再使用。</span>
<span>此值现在已经本地化，并且来自带键<code>AbstractUndoableEdit.redoText</code>的默认值。</span>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../../javax/swing/UIDefaults.html" title="javax.swing中的类"><code>UIDefaults</code></a> ， <a href="../../../constant-values.html#javax.swing.undo.AbstractUndoableEdit.RedoName">Constant Field Values</a></span>
</dd>
</dl> </li>
</ul> </li>
</ul>
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<ul class="blockList">
<li class="blockList"><a name="constructor.detail">
<!-- --> </a> <h3>构造方法详细信息</h3> <a name="AbstractUndoableEdit--">
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<ul class="blockListLast">
<li class="blockList"> <h4>AbstractUndoableEdit</h4> <pre>public AbstractUndoableEdit()</pre>
<div class="block">
            创建 
           <code>AbstractUndoableEdit</code> ，默认为 
           <code>hasBeenDone</code>和 
           <code>alive</code>至 
           <code>true</code> 。 
          </div> </li>
</ul> </li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
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<li class="blockList"><a name="method.detail">
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<li class="blockList"> <h4>die</h4> <pre>public void die()</pre>
<div class="block">
<span>将<code>alive</code>设为false。</span>
<span>注意这是单向操作;</span>
<span>死亡编辑不能复活。</span>
<span>将<code>undo</code>或<code>redo</code>发送到死编辑会导致抛出异常。</span>
<p> <span>通常，当编辑被另一个编辑的<code>addEdit</code>或<code>replaceEdit</code>方法<code>replaceEdit</code>时，或当它从<code>UndoManager</code>出队时，编辑被杀死。</span> </p>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#die--">die</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/CompoundEdit.html#die--"><code>CompoundEdit.die()</code></a>
</dd>
</dl> </li>
</ul> <a name="undo--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>undo</h4> <pre>public void undo()
          throws <a href="../../../javax/swing/undo/CannotUndoException.html" title="class in javax.swing.undo">CannotUndoException</a></pre>
<div class="block">
<span>抛出<code>CannotUndoException</code>如果<code>canUndo</code>回报<code>false</code> 。</span>
<span>将<code>hasBeenDone</code>设为<code>false</code> 。</span>
<span>子类应该覆盖以撤销此编辑所表示的操作。</span>
<span>覆盖应该从调用超级开始。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#undo--">undo</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/CannotUndoException.html" title="class in javax.swing.undo">CannotUndoException</a></code> - 如果 
            <code>canUndo</code>返回 
            <code>false</code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/AbstractUndoableEdit.html#canUndo--"><code>canUndo()</code></a>
</dd>
</dl> </li>
</ul> <a name="canUndo--">
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<ul class="blockList">
<li class="blockList"> <h4>canUndo</h4> <pre>public boolean canUndo()</pre>
<div class="block">
            如果此编辑为 
           <code>alive</code> ，并且 
           <code>hasBeenDone</code>为 
           <code>true</code>则返回true。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#canUndo--">canUndo</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             如果此编辑是 
            <code>alive</code>和 
            <code>hasBeenDone</code>是 
            <code>true</code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/AbstractUndoableEdit.html#die--"><code>die()</code></a> ， 
            <a href="../../../javax/swing/undo/AbstractUndoableEdit.html#undo--"><code>undo()</code></a> ， 
            <a href="../../../javax/swing/undo/AbstractUndoableEdit.html#redo--"><code>redo()</code></a>
</dd>
</dl> </li>
</ul> <a name="redo--">
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<ul class="blockList">
<li class="blockList"> <h4>redo</h4> <pre>public void redo()
          throws <a href="../../../javax/swing/undo/CannotRedoException.html" title="class in javax.swing.undo">CannotRedoException</a></pre>
<div class="block">
<span>如果<code>canRedo</code>返回false，则抛出<code>CannotRedoException</code> 。</span>
<span>将<code>hasBeenDone</code>设为<code>true</code> 。</span>
<span>子类应该覆盖以重做由此编辑表示的操作。</span>
<span>覆盖应该从调用超级开始。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#redo--">redo</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/CannotRedoException.html" title="class in javax.swing.undo">CannotRedoException</a></code> - 如果 
            <code>canRedo</code>返回 
            <code>false</code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/AbstractUndoableEdit.html#canRedo--"><code>canRedo()</code></a>
</dd>
</dl> </li>
</ul> <a name="canRedo--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>canRedo</h4> <pre>public boolean canRedo()</pre>
<div class="block">
            返回 
           <code>true</code>如果此编辑为 
           <code>alive</code>和 
           <code>hasBeenDone</code>是 
           <code>false</code> 。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#canRedo--">canRedo</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>true</code>如果这个编辑是 
            <code>alive</code>和 
            <code>hasBeenDone</code>是 
            <code>false</code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/AbstractUndoableEdit.html#die--"><code>die()</code></a> ， 
            <a href="../../../javax/swing/undo/AbstractUndoableEdit.html#undo--"><code>undo()</code></a> ， 
            <a href="../../../javax/swing/undo/AbstractUndoableEdit.html#redo--"><code>redo()</code></a>
</dd>
</dl> </li>
</ul> <a name="addEdit-javax.swing.undo.UndoableEdit-">
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<ul class="blockList">
<li class="blockList"> <h4>addEdit</h4> <pre>public boolean addEdit(<a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a> anEdit)</pre>
<div class="block">
            此默认实现返回false。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#addEdit-javax.swing.undo.UndoableEdit-">addEdit</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>anEdit</code> - 要添加的编辑 
           </dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             假 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/UndoableEdit.html#addEdit-javax.swing.undo.UndoableEdit-"><code>UndoableEdit.addEdit(javax.swing.undo.UndoableEdit)</code></a>
</dd>
</dl> </li>
</ul> <a name="replaceEdit-javax.swing.undo.UndoableEdit-">
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<ul class="blockList">
<li class="blockList"> <h4>replaceEdit</h4> <pre>public boolean replaceEdit(<a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a> anEdit)</pre>
<div class="block">
            此默认实现返回false。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#replaceEdit-javax.swing.undo.UndoableEdit-">replaceEdit</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>anEdit</code> - 要替换的编辑 
           </dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             假 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/UndoableEdit.html#replaceEdit-javax.swing.undo.UndoableEdit-"><code>UndoableEdit.replaceEdit(javax.swing.undo.UndoableEdit)</code></a>
</dd>
</dl> </li>
</ul> <a name="isSignificant--">
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<ul class="blockList">
<li class="blockList"> <h4>isSignificant</h4> <pre>public boolean isSignificant()</pre>
<div class="block">
            此默认实现返回true。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#isSignificant--">isSignificant</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             真正 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/UndoableEdit.html#isSignificant--"><code>UndoableEdit.isSignificant()</code></a>
</dd>
</dl> </li>
</ul> <a name="getPresentationName--">
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<ul class="blockList">
<li class="blockList"> <h4>getPresentationName</h4> <pre>public <a href="../../../java/lang/String.html" title="class in java.lang">String</a> getPresentationName()</pre>
<div class="block">
<span>此默认实现返回“”。</span>
<span>由<code>getUndoPresentationName</code>和<code>getRedoPresentationName</code>来构造他们返回的字符串。</span>
<span>子类应该覆盖以返回该编辑表示的操作的适当描述。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#getPresentationName--">getPresentationName</a></code>在接口 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             空字符串“” 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/AbstractUndoableEdit.html#getUndoPresentationName--"><code>getUndoPresentationName()</code></a> ， 
            <a href="../../../javax/swing/undo/AbstractUndoableEdit.html#getRedoPresentationName--"><code>getRedoPresentationName()</code></a>
</dd>
</dl> </li>
</ul> <a name="getUndoPresentationName--">
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<ul class="blockList">
<li class="blockList"> <h4>getUndoPresentationName</h4> <pre>public <a href="../../../java/lang/String.html" title="class in java.lang">String</a> getUndoPresentationName()</pre>
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<span>使用键<code>AbstractUndoableEdit.undoText</code>从默认值表中检索值，并返回该值后跟空格，后跟<code>getPresentationName</code> 。</span>
<span>如果<code>getPresentationName</code>返回“”，则默认值将单独返回。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#getUndoPresentationName--">getUndoPresentationName</a></code>在界面 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             来自默认表的值为 
            <code>AbstractUndoableEdit.undoText</code> ，后跟一个空格，后跟 
            <code>getPresentationName</code> ，除非 
            <code>getPresentationName</code>是“”，在这种情况下，默认值是单独返回的。 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/AbstractUndoableEdit.html#getPresentationName--"><code>getPresentationName()</code></a>
</dd>
</dl> </li>
</ul> <a name="getRedoPresentationName--">
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<ul class="blockList">
<li class="blockList"> <h4>getRedoPresentationName</h4> <pre>public <a href="../../../java/lang/String.html" title="class in java.lang">String</a> getRedoPresentationName()</pre>
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<span>使用关键字<code>AbstractUndoableEdit.redoText</code>从默认表中检索该值，并返回该值后跟一个空格，后跟<code>getPresentationName</code> 。</span>
<span>如果<code>getPresentationName</code>返回“”，则默认值将单独返回。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../javax/swing/undo/UndoableEdit.html#getRedoPresentationName--">getRedoPresentationName</a></code>在界面 
            <code><a href="../../../javax/swing/undo/UndoableEdit.html" title="interface in javax.swing.undo">UndoableEdit</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             来自默认值的值为 
            <code>AbstractUndoableEdit.redoText</code> ，后跟一个空格，其次是 
            <code>getPresentationName</code> ，除非 
            <code>getPresentationName</code>是“”，在这种情况下，默认值是单独返回的。 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/swing/undo/AbstractUndoableEdit.html#getPresentationName--"><code>getPresentationName()</code></a>
</dd>
</dl> </li>
</ul> <a name="toString--">
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<ul class="blockListLast">
<li class="blockList"> <h4>toString</h4> <pre>public <a href="../../../java/lang/String.html" title="class in java.lang">String</a> toString()</pre>
<div class="block">
            返回显示和标识此对象属性的字符串。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../../java/lang/Object.html#toString--">toString</a></code>在 
            <code><a href="../../../java/lang/Object.html" title="class in java.lang">Object</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             该对象的字符串表示形式 
           </dd>
</dl> </li>
</ul> </li>
</ul> </li>
</ul>
</div>
</div>