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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 17:20:56 PST 2003 --><TITLE>Relation (Java 2 Platform Ent. Ed. v1.4)</TITLE><META NAME="keywords" CONTENT="javax.management.relation.Relation interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Relation (Java 2 Platform Ent. 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Ed. v1.4</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> PREV CLASS <A HREF="../../../javax/management/relation/RelationServiceMBean.html" title="interface in javax.management.relation"><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="Relation.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.relation</FONT><BR>Interface Relation</H2><DL><DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../../javax/management/relation/RelationSupportMBean.html" title="interface in javax.management.relation">RelationSupportMBean</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../javax/management/relation/RelationSupport.html" title="class in javax.management.relation">RelationSupport</A></DD></DL><HR><DL><DT>public interface <B>Relation</B></DL><P>This interface has to be implemented by any MBean class expected to represent a relation managed using the Relation Service. <P>Simple relations, i.e. having only roles, no properties or methods, can be created directly by the Relation Service (represented as RelationSupport objects, internally handled by the Relation Service). <P>If the user wants to represent more complex relations, involving properties and/or methods, he has to provide his own class implementing the Relation interface. This can be achieved either by inheriting from RelationSupport class, or by implementing the interface (fully or delegation to a RelationSupport object member). <P>Specifying such user relation class is to introduce properties and/or methods. Those have to be exposed for remote management. So this means that any user relation class must be a MBean class.<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> <A HREF="../../../javax/management/relation/RoleResult.html" title="class in javax.management.relation">RoleResult</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/management/relation/Relation.html#getAllRoles()">getAllRoles</A></B>()</CODE><BR> Returns all roles present in the relation.</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/util/Map.html" title="class or interface in java.util">Map</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/management/relation/Relation.html#getReferencedMBeans()">getReferencedMBeans</A></B>()</CODE><BR> Retrieves MBeans referenced in the various roles of the relation.</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/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/management/relation/Relation.html#getRelationId()">getRelationId</A></B>()</CODE><BR> Returns relation identifier (used to uniquely identify the relation inside the Relation Service).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/management/relation/Relation.html#getRelationServiceName()">getRelationServiceName</A></B>()</CODE><BR> Returns ObjectName of the Relation Service handling the relation.</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/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/management/relation/Relation.html#getRelationTypeName()">getRelationTypeName</A></B>()</CODE><BR> Returns name of associated relation type.</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/util/List.html" title="class or interface in java.util">List</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/management/relation/Relation.html#getRole(java.lang.String)">getRole</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> theRoleName)</CODE><BR> Retrieves role value for given role name. </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/Integer.html" title="class or interface in java.lang">Integer</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/management/relation/Relation.html#getRoleCardinality(java.lang.String)">getRoleCardinality</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> theRoleName)</CODE><BR> Returns the number of MBeans currently referenced in the given role.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/management/relation/RoleResult.html" title="class in javax.management.relation">RoleResult</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/management/relation/Relation.html#getRoles(java.lang.String[])">getRoles</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>[] theRoleNameArray)</CODE><BR> Retrieves values of roles with given names. </TD>⌨️ 快捷键说明
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