uTools-Manuals/docs/java/javax/xml/bind/JAXBElement.html

<div class="header">
<div class="subTitle">
     javax.xml.bind 
   </div>
<h2 class="title" title="Class JAXBElement">Class JAXBElement&lt;T&gt;</h2>
</div><div class="contentContainer">
<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.xml.bind.JAXBElement&lt;T&gt;</li>
</ul> </li>
</ul>
<div class="description">
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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></span>
</dd>
</dl>
<hr/> <br/> <pre>public class <span class="typeNameLabel">JAXBElement&lt;T&gt;</span>
extends <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a>
implements <a href="../../../java/io/Serializable.html" title="interface in java.io">Serializable</a></pre>
<div class="block">
<p> <span>一个Xml元素的JAXB表示。</span> </p>
<p> <span>该类从模式中的元素声明和xml文档中的元素实例值中表示有关Xml元素的信息，具有以下属性</span> </p>
<ul>
<li> <span>元素的xml标签<b><tt>name</tt></b></span> </li>
<li> <span><b><tt>value</tt></b>表示元素实例的属性和内容模型</span> </li>
<li> <span>元素声明<b><tt>declaredType</tt></b> （ <tt>xs:element @type</tt>属性）</span> </li>
<li> <span><b><tt>scope</tt></b>元素声明</span> </li>
<li> <span>布尔<b><tt>nil</tt></b>属性。</span> <span>（元素实例的<tt><b>xsi:nil</b></tt>属性）</span> </li>
</ul>
<p> <span><tt>declaredType</tt>和<tt>scope</tt>属性是针对xml类型定义的JAXB类绑定。</span> </p>
<p> <span><b><tt>Scope</tt></b>是<a href="../../../javax/xml/bind/JAXBElement.GlobalScope.html" title="javax.xml.bind中的类"><code>JAXBElement.GlobalScope</code></a>或表示包含模式元素声明的复杂类型定义的Java类。</span> </p>
<p> <span>有一个财产限制，如果<b><tt>value</tt></b>是<tt>null</tt> ，那么<tt>nil</tt>必须是<tt>true</tt> 。</span> <span>使用属性表示一个零元素是不正确的。</span> <span>如果<tt>nil</tt>为真，那么<tt>value</tt>可能是非空的，因此它可以保存与零元素相关联的属性的值。</span> </p>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
         JAXB 2.0 
       </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../serialized-form.html#javax.xml.bind.JAXBElement">Serialized Form</a>
</dd>
</dl> </li>
</ul>
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<!-- ======== NESTED CLASS SUMMARY ======== -->
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<li class="blockList"><a name="nested.class.summary">
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Nested Class Summary table, listing nested classes, and an explanation">
<caption>
<span>Nested Classes</span>
<span class="tabEnd"> </span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.GlobalScope.html" title="class in javax.xml.bind">JAXBElement.GlobalScope</a></span></code>
<div class="block">
              指定xml元素的全局范围。 
            </div> </td>
</tr>
</tbody>
</table> </li>
</ul>
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<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 <a href="../../../java/lang/Class.html" title="class in java.lang">类</a>&lt;<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#declaredType">declaredType</a></span></code>
<div class="block">
              Java数据类型绑定xml元素声明的类型。 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#name">name</a></span></code>
<div class="block">
              xml元素标签名称 
            </div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#nil">nil</a></span></code>
<div class="block">
              如果xml元素实例具有xsi：nil =“true”，则为true。 
            </div> </td>
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<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../java/lang/Class.html" title="class in java.lang">类</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#scope">scope</a></span></code>
<div class="block">
              表示此xml元素实例的xml元素声明的范围。 
            </div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#value">value</a></span></code>
<div class="block">
              xml元素值。 
            </div> </td>
</tr>
</tbody>
</table> </li>
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<span>构造方法</span>
<span class="tabEnd"> </span>
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<tbody>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#JAXBElement-javax.xml.namespace.QName-java.lang.Class-java.lang.Class-T-">JAXBElement</a></span>(<a href="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</a> name, <a href="../../../java/lang/Class.html" title="class in java.lang">类</a>&lt;<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a>&gt; declaredType, <a href="../../../java/lang/Class.html" title="class in java.lang">类</a> scope, <a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a> value)</code>
<div class="block">
              构造一个xml元素实例。 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#JAXBElement-javax.xml.namespace.QName-java.lang.Class-T-">JAXBElement</a></span>(<a href="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</a> name, <a href="../../../java/lang/Class.html" title="class in java.lang">类</a>&lt;<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a>&gt; declaredType, <a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a> value)</code>
<div class="block">
              构造一个xml元素实例。 
            </div> </td>
</tr>
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<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><a href="../../../java/lang/Class.html" title="class in java.lang">类</a>&lt;<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#getDeclaredType--">getDeclaredType</a></span>()</code>
<div class="block">
              返回xml元素声明的type属性的Java绑定。 
            </div> </td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code><a href="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#getName--">getName</a></span>()</code>
<div class="block">
              返回xml元素标签名称。 
            </div> </td>
</tr>
<tr class="altColor" id="i2">
<td class="colFirst"><code><a href="../../../java/lang/Class.html" title="class in java.lang">类</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#getScope--">getScope</a></span>()</code>
<div class="block">
              返回xml元素声明的范围。 
            </div> </td>
</tr>
<tr class="rowColor" id="i3">
<td class="colFirst"><code><a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#getValue--">getValue</a></span>()</code>
<div class="block">
              返回此元素的内容模型和属性值。 
            </div> </td>
</tr>
<tr class="altColor" id="i4">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#isGlobalScope--">isGlobalScope</a></span>()</code>
<div class="block">
              如果这个xml元素声明是全局的，则返回true。 
            </div> </td>
</tr>
<tr class="rowColor" id="i5">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#isNil--">isNil</a></span>()</code>
<div class="block">
              如果此元素实例内容模型为零，则返回 
             <tt>true</tt> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i6">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#isTypeSubstituted--">isTypeSubstituted</a></span>()</code>
<div class="block">
              如果此xml元素实例的值与xml元素声明的声明类型具有不同的类型，则返回true。 
            </div> </td>
</tr>
<tr class="rowColor" id="i7">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/xml/bind/JAXBElement.html#setNil-boolean-">setNil</a></span>(boolean value)</code>
<div class="block">
              设置此元素是否具有零含量。 
            </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/xml/bind/JAXBElement.html#setValue-T-">setValue</a></span>(<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a> t)</code>
<div class="block">
              设置这个xml元素的内容模型和属性。 
            </div> </td>
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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#toString--">toString</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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<li class="blockList"> <h4>name</h4> <pre>protected final <a href="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</a> name</pre>
<div class="block">
            xml元素标签名称 
          </div> </li>
</ul> <a name="declaredType">
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<li class="blockList"> <h4>declaredType</h4> <pre>protected final <a href="../../../java/lang/Class.html" title="class in java.lang">类</a>&lt;<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a>&gt; declaredType</pre>
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            Java数据类型绑定xml元素声明的类型。 
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<li class="blockList"> <h4>scope</h4> <pre>protected final <a href="../../../java/lang/Class.html" title="class in java.lang">类</a> scope</pre>
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<span>表示此xml元素实例的xml元素声明的范围。</span>
<span>可以是下列值之一： - <a href="../../../javax/xml/bind/JAXBElement.GlobalScope.html" title="javax.xml.bind中的类"><code>JAXBElement.GlobalScope</code></a>全球xml元素声明。</span>
<span> - 本地元素声明的范围设置为包含xml元素声明的复杂类型定义的Java类表示。</span>
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<li class="blockList"> <h4>value</h4> <pre>protected <a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a> value</pre>
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<span>xml元素值。</span>
<span>表示xml元素实例的内容模型和属性。</span>
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<li class="blockList"> <h4>nil</h4> <pre>protected boolean nil</pre>
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            如果xml元素实例具有xsi：nil =“true”，则为true。 
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<li class="blockList"> <h4>JAXBElement</h4> <pre>public JAXBElement(<a href="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</a> name,
                   <a href="../../../java/lang/Class.html" title="class in java.lang">类</a>&lt;<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a>&gt; declaredType,
                   <a href="../../../java/lang/Class.html" title="class in java.lang">类</a> scope,
                   <a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a> value)</pre>
<div class="block">
<p>构造一个xml元素实例。 </p>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>name</code> - Java绑定的xml元素标签名称 
           </dd>
<dd>
<code>declaredType</code> - xml元素声明类型的Java绑定 
           </dd>
<dd>
<span><code>scope</code> - Java绑定xml元素声明的范围。</span>
<span>传递null与通过<tt>GlobalScope.class</tt>相同</span>
</dd>
<dd>
<code>value</code> - 表示xml元素值的Java实例。 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/xml/bind/JAXBElement.html#getScope--"><code>getScope()</code></a> ， 
            <a href="../../../javax/xml/bind/JAXBElement.html#isTypeSubstituted--"><code>isTypeSubstituted()</code></a>
</dd>
</dl> </li>
</ul> <a name="JAXBElement-javax.xml.namespace.QName-java.lang.Class-java.lang.Object-">
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<li class="blockList"> <h4>JAXBElement</h4> <pre>public JAXBElement(<a href="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</a> name,
                   <a href="../../../java/lang/Class.html" title="class in java.lang">类</a>&lt;<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a>&gt; declaredType,
                   <a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a> value)</pre>
<div class="block">
<span>构造一个xml元素实例。</span>
<span>这只是一个方便的方法<tt>new JAXBElement(name,declaredType,GlobalScope.class,value)</tt></span>
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<li class="blockList"> <h4>getDeclaredType</h4> <pre>public <a href="../../../java/lang/Class.html" title="class in java.lang">类</a>&lt;<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a>&gt; getDeclaredType()</pre>
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            返回xml元素声明的type属性的Java绑定。 
          </div> </li>
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<li class="blockList"> <h4>getName</h4> <pre>public <a href="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</a> getName()</pre>
<div class="block">
            返回xml元素标签名称。 
          </div> </li>
</ul> <a name="setValue-java.lang.Object-">
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<li class="blockList"> <h4>setValue</h4> <pre>public void setValue(<a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a> t)</pre>
<div class="block">
<p> <span>设置这个xml元素的内容模型和属性。</span> </p>
<p> <span>当此属性设置为<tt>null</tt>时， <tt>isNil()</tt>必须由<tt>true</tt> 。</span> <span>约束细节描述于<a href="../../../javax/xml/bind/JAXBElement.html#isNil--"><code>isNil()</code></a> 。</span> </p>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/xml/bind/JAXBElement.html#isTypeSubstituted--"><code>isTypeSubstituted()</code></a>
</dd>
</dl> </li>
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<li class="blockList"> <h4>getValue</h4> <pre>public <a href="../../../javax/xml/bind/JAXBElement.html" title="type parameter in JAXBElement">T</a> getValue()</pre>
<div class="block">
<p> <span>返回此元素的内容模型和属性值。</span> </p>
<p> <span>有关属性约束的描述，请参阅<a href="../../../javax/xml/bind/JAXBElement.html#isNil--"><code>isNil()</code></a> ，该值为<tt>null</tt></span> </p>
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<li class="blockList"> <h4>getScope</h4> <pre>public <a href="../../../java/lang/Class.html" title="class in java.lang">类</a> getScope()</pre>
<div class="block">
            返回xml元素声明的范围。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<tt>GlobalScope.class</tt>如果这个元素是全局的范围。 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../javax/xml/bind/JAXBElement.html#isGlobalScope--"><code>isGlobalScope()</code></a>
</dd>
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<li class="blockList"> <h4>isNil</h4> <pre>public boolean isNil()</pre>
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<p> <span>如果此元素实例内容模型为零，则返回<tt>true</tt> 。</span> </p>
<p> <span>当<a href="../../../javax/xml/bind/JAXBElement.html#getValue--"><code>getValue()</code></a>为null时，此属性始终返回<tt>true</tt> 。</span> <span>请注意，相反是不正确的，当此属性为<tt>true</tt>时， <a href="../../../javax/xml/bind/JAXBElement.html#getValue--"><code>getValue()</code></a>可以包含属性的非空值。</span> <span>它对于一个nil xml元素具有属性是有效的。</span> </p>
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<li class="blockList"> <h4>setNil</h4> <pre>public void setNil(boolean value)</pre>
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<p>设置此元素是否具有零含量。 </p>
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<span class="seeLabel">另请参见：</span>
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<a href="../../../javax/xml/bind/JAXBElement.html#isNil--"><code>isNil()</code></a>
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<li class="blockList"> <h4>isGlobalScope</h4> <pre>public boolean isGlobalScope()</pre>
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            如果这个xml元素声明是全局的，则返回true。 
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<li class="blockList"> <h4>isTypeSubstituted</h4> <pre>public boolean isTypeSubstituted()</pre>
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            如果此xml元素实例的值与xml元素声明的声明类型具有不同的类型，则返回true。 
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