Invoker.java |
/* * JBoss, the OpenSource J2EE webOS * * Distributable under LGPL license. * See terms of license at gnu.org. */ package org.jboss.invocation; import java.rmi.Remote; import org.jboss.proxy.Interceptor; import org.jboss.util.id.GUID; /** * This invoker carries Invocation in the JMX target node. * * <p> * The interface in the current JBoss can be implemented with Remote/local switches or * with clustered invokers, this interface just masks the network details and the topology * of the JMX nodes for the client proxies. * * @author <a href="mailto:marc@jboss.org">Marc Fleury</a> * @version $Revision: 1.7 $ * * <p><b>Revisions:</b> * * <p><b>20011114 marc fleury:</b> * <ul> * <li>Initial check-in * </ul> */ public interface Invoker extends Remote { /** * A globaly unique identifier use to determine if an instance is local * to the invoker. */ GUID ID = new GUID(); /** * A free form String identifier for this delegate invoker, can be clustered or target node * This should evolve in a more advanced meta-inf object */ String getServerHostName() throws Exception; /** * The invoke with an Invocation Object. * * <p> * the delegate can handle network protocols on behalf of proxies (proxies delegate to these * puppies). We provide default implemenations with JRMP/Local/Clustered invokers. * The delegates are not tied to a type of invocation (EJB or generic RMI). * * @param invocation A pointer to the invocation object * @return Return value of method invocation. * * @throws Exception Failed to invoke method. */ Object invoke(Invocation invocation) throws Exception; }
Invoker.java |