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https://github.com/fofolee/uTools-Manuals.git
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331 lines
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331 lines
15 KiB
HTML
<div class="header">
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<div class="subTitle">
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compact3
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</div>
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<div class="subTitle">
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javax.management
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</div>
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<h2 class="title" title="Class ObjectInstance">Class ObjectInstance</h2>
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</div><div class="contentContainer">
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<ul class="inheritance">
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<li><a href="../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
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<li>
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<ul class="inheritance">
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<li>javax.management.ObjectInstance</li>
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</ul> </li>
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</ul>
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<div class="description">
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<ul class="blockList">
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<li class="blockList">
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<dl>
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<dt>
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All Implemented Interfaces:
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</dt>
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<dd>
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<span><a href="../../java/io/Serializable.html" title="java.io中的接口">Serializable</a></span>
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</dd>
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</dl>
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<hr/> <br/> <pre>public class <span class="typeNameLabel">ObjectInstance</span>
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extends <a href="../../java/lang/Object.html" title="class in java.lang">Object</a>
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implements <a href="../../java/io/Serializable.html" title="interface in java.io">Serializable</a></pre>
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<div class="block">
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<span>用于表示MBean的对象名称及其类名。</span>
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<span>如果MBean是动态MBean，则应从其提供的<code>MBeanInfo</code>类名。</span>
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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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1.5
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</dd>
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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="../../serialized-form.html#javax.management.ObjectInstance">Serialized Form</a>
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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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<ul class="blockList">
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<li class="blockList">
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.summary">
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<!-- --> </a> <h3>构造方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
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<caption>
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<span>构造方法</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="colOne" scope="col">Constructor and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javax/management/ObjectInstance.html#ObjectInstance-javax.management.ObjectName-java.lang.String-">ObjectInstance</a></span>(<a href="../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</a> objectName, <a href="../../java/lang/String.html" title="class in java.lang">String</a> className)</code>
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<div class="block">
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允许在给定对象名称和完整的类名称（包括包名称）的情况下创建对象实例。
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</div> </td>
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</tr>
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<tr class="rowColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javax/management/ObjectInstance.html#ObjectInstance-java.lang.String-java.lang.String-">ObjectInstance</a></span>(<a href="../../java/lang/String.html" title="class in java.lang">String</a> objectName, <a href="../../java/lang/String.html" title="class in java.lang">String</a> className)</code>
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<div class="block">
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允许创建对象实例，并提供对象名称和完整类名称（包括包名称）的字符串表示形式。
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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="t4"><span><a href="javascript:show(8);">具体的方法</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>boolean</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/management/ObjectInstance.html#equals-java.lang.Object-">equals</a></span>(<a href="../../java/lang/Object.html" title="class in java.lang">Object</a> object)</code>
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<div class="block">
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将当前对象实例与另一个对象实例进行比较。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i1">
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<td class="colFirst"><code><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/management/ObjectInstance.html#getClassName--">getClassName</a></span>()</code>
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<div class="block">
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返回类部分。
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</div> </td>
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</tr>
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<tr class="altColor" id="i2">
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<td class="colFirst"><code><a href="../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/management/ObjectInstance.html#getObjectName--">getObjectName</a></span>()</code>
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<div class="block">
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返回对象名称部分。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i3">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/management/ObjectInstance.html#hashCode--">hashCode</a></span>()</code>
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<div class="block">
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返回对象的哈希码值。
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</div> </td>
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</tr>
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<tr class="altColor" id="i4">
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<td class="colFirst"><code><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/management/ObjectInstance.html#toString--">toString</a></span>()</code>
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<div class="block">
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返回表示此ObjectInstance对象的字符串。
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</div> </td>
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</tr>
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</tbody>
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</table>
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<ul class="blockList">
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<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
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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#finalize--">finalize</a>, <a href="../../java/lang/Object.html#getClass--">getClass</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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</ul> </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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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.detail">
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<!-- --> </a> <h3>构造方法详细信息</h3> <a name="ObjectInstance-java.lang.String-java.lang.String-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>ObjectInstance</h4> <pre>public ObjectInstance(<a href="../../java/lang/String.html" title="class in java.lang">String</a> objectName,
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<a href="../../java/lang/String.html" title="class in java.lang">String</a> className)
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throws <a href="../../javax/management/MalformedObjectNameException.html" title="class in javax.management">MalformedObjectNameException</a></pre>
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<div class="block">
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允许创建对象实例，并提供对象名称和完整类名称（包括包名称）的字符串表示形式。
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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>objectName</code> - 对象名称的字符串表示形式。
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</dd>
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<dd>
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<span><code>className</code> - 对象实例的完整类名称，包括包名称。</span>
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<span>如果MBean是一个动态MBean，类名称对应于它的<a href="../../javax/management/DynamicMBean.html#getMBeanInfo--"><code>getMBeanInfo()</code></a> <code>.getClassName()</code> 。</span>
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</dd>
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<dt>
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<span class="throwsLabel">异常</span>
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</dt>
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<dd>
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<code><a href="../../javax/management/MalformedObjectNameException.html" title="class in javax.management">MalformedObjectNameException</a></code> - 作为参数传递的字符串没有正确的格式。
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</dd>
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</dl> </li>
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</ul> <a name="ObjectInstance-javax.management.ObjectName-java.lang.String-">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>ObjectInstance</h4> <pre>public ObjectInstance(<a href="../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</a> objectName,
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<a href="../../java/lang/String.html" title="class in java.lang">String</a> className)</pre>
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<div class="block">
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允许在给定对象名称和完整的类名称（包括包名称）的情况下创建对象实例。
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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>objectName</code> - 对象名称。
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</dd>
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<dd>
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<span><code>className</code> - 对象实例的完整类名，包括包名称。</span>
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<span>如果MBean是动态MBean，则类名称对应于它的<a href="../../javax/management/DynamicMBean.html#getMBeanInfo--"><code>getMBeanInfo()</code></a> <code>.getClassName()</code> 。</span>
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<span>如果MBean是一个动态MBean，则应从其提供的<code>MBeanInfo</code>类名。</span>
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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="equals-java.lang.Object-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>equals</h4> <pre>public boolean equals(<a href="../../java/lang/Object.html" title="class in java.lang">Object</a> object)</pre>
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<div class="block">
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将当前对象实例与另一个对象实例进行比较。
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../java/lang/Object.html#equals-java.lang.Object-">equals</a></code>在
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<code><a href="../../java/lang/Object.html" title="class in java.lang">Object</a></code>
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</dd>
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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>object</code> - 要与当前对象实例进行比较的对象实例。
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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如果两个对象实例相等，则为True，否则为false。
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</dd>
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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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<span><a href="../../java/lang/Object.html#hashCode--"><code>Object.hashCode()</code></a> ， <a href="../../java/util/HashMap.html" title="java.util中的类"><code>HashMap</code></a></span>
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</dd>
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</dl> </li>
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</ul> <a name="hashCode--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>hashCode</h4> <pre>public int hashCode()</pre>
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<div class="block">
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<span class="descfrmTypeLabel">描述从类别复制： <code><a href="../../java/lang/Object.html#hashCode--">Object</a></code></span>
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</div>
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<div class="block">
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<span>返回对象的哈希码值。</span>
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<span>支持这种方法有利于哈希表，如<a href="../../java/util/HashMap.html" title="java.util中的类"><code>HashMap</code></a>提供的<a href="../../java/util/HashMap.html" title="java.util中的类">那些</a> 。</span>
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<p> <span><code>hashCode</code>的总合同是：</span> </p>
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<ul>
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<li> <span>只要在执行Java应用程序时多次在同一个对象上调用该方法， <code>hashCode</code>方法必须始终返回相同的整数，前提是修改了对象中<code>equals</code>比较中没有使用的<code>equals</code> 。</span> <span>该整数不需要从一个应用程序的执行到相同应用程序的另一个执行保持一致。</span> </li>
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<li> <span>如果两个对象根据<code>equals(Object)</code>方法相等，则在两个对象中的每个对象上调用<code>hashCode</code>方法必须产生相同的整数结果。</span> </li>
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<li> <span><em>不</em>要求如果两个对象根据<a href="../../java/lang/Object.html#equals-java.lang.Object-"><code>Object.equals(java.lang.Object)</code></a>方法不相等，那么在两个对象中的每个对象上调用<code>hashCode</code>方法必须产生不同的整数结果。</span> <span>但是，程序员应该意识到，为不等对象生成不同的整数结果可能会提高哈希表的性能。</span> </li>
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</ul>
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<p> <span>尽可能合理实用，由类<code>Object</code>定义的hashCode方法确实为不同对象返回不同的整数。</span> <span>（这通常通过将对象的内部地址转换为整数来实现，但Java的编程语言不需要此实现技术。）</span> </p>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../java/lang/Object.html#hashCode--">hashCode</a></code>在
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<code><a href="../../java/lang/Object.html" title="class in java.lang">Object</a></code>
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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该对象的哈希码值。
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</dd>
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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="../../java/lang/Object.html#equals-java.lang.Object-"><code>Object.equals(java.lang.Object)</code></a> ，
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<a href="../../java/lang/System.html#identityHashCode-java.lang.Object-"><code>System.identityHashCode(java.lang.Object)</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="getObjectName--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getObjectName</h4> <pre>public <a href="../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</a> getObjectName()</pre>
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<div class="block">
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返回对象名称部分。
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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对象名称。
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</dd>
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</dl> </li>
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</ul> <a name="getClassName--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getClassName</h4> <pre>public <a href="../../java/lang/String.html" title="class in java.lang">String</a> getClassName()</pre>
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<div class="block">
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返回类部分。
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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类名。
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</dd>
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</dl> </li>
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</ul> <a name="toString--">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>toString</h4> <pre>public <a href="../../java/lang/String.html" title="class in java.lang">String</a> toString()</pre>
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<div class="block">
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<span>返回表示此ObjectInstance对象的字符串。</span>
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<span>此字符串的格式未指定，但是当用户可以期望两个ObjectInstances返回相同的字符串，当且仅当它们相等时。</span>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../java/lang/Object.html#toString--">toString</a></code>在
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<code><a href="../../java/lang/Object.html" title="class in java.lang">Object</a></code>
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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对象的字符串表示形式。
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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> |