- /*
- * @(#)QueryEval.java 4.24 04/02/10
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package javax.management;
-
-
- // java import
- import java.io.Serializable;
-
- // RI import
- import javax.management.MBeanServer;
-
-
- /**
- * Allows a query to be performed in the context of a specific MBean server.
- *
- * @since 1.5
- */
- public abstract class QueryEval implements Serializable {
-
- /* Serial version */
- private static final long serialVersionUID = 2675899265640874796L;
-
- private static ThreadLocal server = new InheritableThreadLocal();
-
- /**
- * <p>Sets the MBean server on which the query is to be performed.
- * The setting is valid for the thread performing the set.
- * It is copied to any threads created by that thread at the moment
- * of their creation.</p>
- *
- * <p>For historical reasons, this method is not static, but its
- * behavior does not depend on the instance on which it is
- * called.</p>
- *
- * @param s The MBean server on which the query is to be performed.
- *
- * @see #getMBeanServer
- */
- public void setMBeanServer(MBeanServer s) {
- server.set(s);
- }
-
- /**
- * <p>Return the MBean server that was most recently given to the
- * {@link #setMBeanServer setMBeanServer} method by this thread.
- * If this thread never called that method, the result is the
- * value its parent thread would have obtained from
- * <code>getMBeanServer</code> at the moment of the creation of
- * this thread, or null if there is no parent thread.</p>
- *
- * @return the MBean server.
- *
- * @see #setMBeanServer
- *
- * @since.unbundled JMX 1.2
- */
- public static MBeanServer getMBeanServer() {
- return (MBeanServer) server.get();
- }
- }