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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 17:20:52 PST 2003 --><TITLE>PersistentMBean (Java 2 Platform Ent. Ed. v1.4)</TITLE><META NAME="keywords" CONTENT="javax.management.PersistentMBean interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="PersistentMBean (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/NotificationListener.html" title="interface in javax.management"><B>PREV CLASS</B></A> <A HREF="../../javax/management/QueryExp.html" title="interface 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="PersistentMBean.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 | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <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>Interface PersistentMBean</H2><DL><DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../javax/management/modelmbean/ModelMBean.html" title="interface in javax.management.modelmbean">ModelMBean</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../javax/management/modelmbean/RequiredModelMBean.html" title="class in javax.management.modelmbean">RequiredModelMBean</A></DD></DL><HR><DL><DT>public interface <B>PersistentMBean</B></DL><P>This class is the interface to be implemented by MBeans that are meant to be persistent. MBeans supporting this interface should call the load method during construction in order to prime the MBean from the persistent store. In the case of a ModelMBean, the store method should be called by the MBeanServer based on the descriptors in the ModelMBean or by the MBean itself during normal processing of the ModelMBean.<P><P><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== 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> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/management/PersistentMBean.html#load()">load</A></B>()</CODE><BR> Instantiates thisMBean instance with the data found for the MBean in the persistent store. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/management/PersistentMBean.html#store()">store</A></B>()</CODE><BR> Captures the current state of this MBean instance and writes it out to the persistent store. </TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="load()"><!-- --></A><H3>load</H3><PRE>public void <B>load</B>() throws <A HREF="../../javax/management/MBeanException.html" title="class in javax.management">MBeanException</A>, <A HREF="../../javax/management/RuntimeOperationsException.html" title="class in javax.management">RuntimeOperationsException</A>, <A HREF="../../javax/management/InstanceNotFoundException.html" title="class in javax.management">InstanceNotFoundException</A></PRE><DL><DD>Instantiates thisMBean instance with the data found for the MBean in the persistent store. The data loaded could include attribute and operation values. This method should be called during construction or initialization of this instance, and before the MBean is registered with the MBeanServer.<P><DD><DL><DT><B>Throws:</B><DD><CODE><A HREF="../../javax/management/MBeanException.html" title="class in javax.management">MBeanException</A></CODE> - Wraps another exception or persistence is not supported<DD><CODE><A HREF="../../javax/management/RuntimeOperationsException.html" title="class in javax.management">RuntimeOperationsException</A></CODE> - Wraps exceptions from the persistence mechanism<DD><CODE><A HREF="../../javax/management/InstanceNotFoundException.html" title="class in javax.management">InstanceNotFoundException</A></CODE> - Could not find or load this MBean from persistent storage</DL></DD></DL><HR><A NAME="store()"><!-- --></A><H3>store</H3><PRE>public void <B>store</B>() throws <A HREF="../../javax/management/MBeanException.html" title="class in javax.management">MBeanException</A>, <A HREF="../../javax/management/RuntimeOperationsException.html" title="class in javax.management">RuntimeOperationsException</A>, <A HREF="../../javax/management/InstanceNotFoundException.html" title="class in javax.management">InstanceNotFoundException</A></PRE><DL><DD>Captures the current state of this MBean instance and writes it out to the persistent store. The state stored could include attribute and operation values. If one of these methods of persistence is not supported a "serviceNotFound" exception will be thrown. <P> Persistance policy from the MBean and attribute descriptor is used to guide execution of this method. The MBean should be stored if 'persistPolicy' field is: <PRE> != "never" = "always" = "onTimer" and now > 'lastPersistTime' + 'persistPeriod' = "NoMoreOftenThan" and now > 'lastPersistTime' + 'persistPeriod' <P> Do not store the MBean if 'persistPolicy' field is: = "never" = "onUpdate" = "onTimer" && now < 'lastPersistTime' + 'persistPeriod' <P></PRE><P><DD><DL><DT><B>Throws:</B><DD><CODE><A HREF="../../javax/management/MBeanException.html" title="class in javax.management">MBeanException</A></CODE> - Wraps another exception or persistence is not supported<DD><CODE><A HREF="../../javax/management/RuntimeOperationsException.html" title="class in javax.management">RuntimeOperationsException</A></CODE> - Wraps exceptions from the persistence mechanism<DD><CODE><A HREF="../../javax/management/InstanceNotFoundException.html" title="class in javax.management">InstanceNotFoundException</A></CODE> - Could not find/access the persistant store</DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Ent. Ed. v1.4</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/management/NotificationListener.html" title="interface in javax.management"><B>PREV CLASS</B></A> <A HREF="../../javax/management/QueryExp.html" title="interface 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="PersistentMBean.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 | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_bottom"></A><!-- ======== END OF BOTTOM NAVBAR ======= --><HR><font size="-1"><a href="http://java.sun.com/webapps/bugreport">Submit a bug or feature</a> <p>Copyright 2003 Sun Microsystems, Inc. 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