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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.4.2_02) on Thu Nov 13 17:20:53 PST 2003 --><TITLE>StandardMBean (Java 2 Platform Ent. Ed. v1.4)</TITLE><META NAME="keywords" CONTENT="javax.management.StandardMBean class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="StandardMBean (Java 2 Platform Ent. 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Ed. v1.4</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/management/QueryEval.html" title="class in javax.management"><B>PREV CLASS</B></A> <A HREF="../../javax/management/StringValueExp.html" title="class in javax.management"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="StandardMBean.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.management</FONT><BR>Class StandardMBean</H2><PRE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by"><B>javax.management.StandardMBean</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../javax/management/DynamicMBean.html" title="interface in javax.management">DynamicMBean</A></DD></DL><HR><DL><DT>public class <B>StandardMBean</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../javax/management/DynamicMBean.html" title="interface in javax.management">DynamicMBean</A></DL><P><p>An MBean whose management interface is determined by reflection on a Java interface.</p> <p>This class brings more flexibility to the notion of Management Interface in the use of Standard MBeans. Straightforward use of the patterns for Standard MBeans described in the JMX Specification means that there is a fixed relationship between the implementation class of an MBean and its management interface (i.e., if the implementation class is Thing, the management interface must be ThingMBean). This class makes it possible to keep the convenience of specifying the management interface with a Java interface, without requiring that there be any naming relationship between the implementation and interface classes.</p> <p>By making a DynamicMBean out of an MBean, this class makes it possible to select any interface implemented by the MBean as its management interface, provided that it complies with JMX patterns (i.e., attributes defined by getter/setter etc...).</p> <p> This class also provides hooks that make it possible to supply custom descriptions and names for the <A HREF="../../javax/management/MBeanInfo.html" title="class in javax.management"><CODE>MBeanInfo</CODE></A> returned by the DynamicMBean interface.</p> <p>Using this class, an MBean can be created with any implementation class name <i>Impl</i> and with a management interface defined (as for current Standard MBeans) by any interface <i>Intf</i>, in one of two general ways:</p> <ul> <li>Using the public constructor <A HREF="../../javax/management/StandardMBean.html#StandardMBean(java.lang.Object, java.lang.Class)"><CODE>StandardMBean(impl,interface)</CODE></A>: <pre> MBeanServer mbs; ... Impl impl = new Impl(...); StandardMBean mbean = new StandardMBean(impl, Intf.class); mbs.registerMBean(mbean, objectName); </pre></li> <li>Subclassing StandardMBean: <pre> public class Impl extends StandardMBean implements Intf { public Impl() { super(Intf.class); } // implement methods of Intf } [...] MBeanServer mbs; .... Impl impl = new Impl(); mbs.registerMBean(impl, objectName); </pre></li> </ul> <p>In either case, the class <i>Impl</i> must implement the interface <i>Intf</i>.</p> <p>Standard MBeans based on the naming relationship between implementation and interface classes are of course still available.</p><P><P><DL><DT><B>Since:</B></DT> <DD>JMX 1.2</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected </CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/management/StandardMBean.html#StandardMBean(java.lang.Class)">StandardMBean</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> mbeanInterface)</CODE><BR> Make a DynamicMBean out of <var>this</var>, using the specified <var>mbeanInterface</var> class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> </CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/management/StandardMBean.html#StandardMBean(java.lang.Object, java.lang.Class)">StandardMBean</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> implementation, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> mbeanInterface)</CODE><BR> Make a DynamicMBean out of the object <var>implementation</var>, using the specified <var>mbeanInterface</var> class.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/management/StandardMBean.html#cacheMBeanInfo(javax.management.MBeanInfo)">cacheMBeanInfo</A></B>(<A HREF="../../javax/management/MBeanInfo.html" title="class in javax.management">MBeanInfo</A> info)</CODE><BR> Customization hook: cache the MBeanInfo built for this object. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/management/StandardMBean.html#getAttribute(java.lang.String)">getAttribute</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> attribute)</CODE><BR> Obtain the value of a specific attribute of the Dynamic MBean.</TD></TR>⌨️ 快捷键说明
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