poapolicymediatorimpl_r_aom.java

java1.6众多例子参考

/*
 * @(#)POAPolicyMediatorImpl_R_AOM.java	1.22 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package com.sun.corba.se.impl.oa.poa ;

import org.omg.PortableServer.Servant ;
import org.omg.PortableServer.ServantManager ;
import org.omg.PortableServer.ForwardRequest ;
import org.omg.PortableServer.POAPackage.WrongPolicy ;
import org.omg.PortableServer.POAPackage.ObjectNotActive ;
import org.omg.PortableServer.POAPackage.ServantNotActive ;
import org.omg.PortableServer.POAPackage.ObjectAlreadyActive ;
import org.omg.PortableServer.POAPackage.ServantAlreadyActive ;
import org.omg.PortableServer.POAPackage.NoServant ;

import com.sun.corba.se.impl.orbutil.concurrent.SyncUtil ;
import com.sun.corba.se.impl.orbutil.ORBUtility ;
import com.sun.corba.se.impl.orbutil.ORBConstants ;

import com.sun.corba.se.impl.oa.NullServantImpl ;

/** Implementation of POARequesHandler that provides policy specific
 * operations on the POA in the case:
 * <ul>
 * <li>retain</li>
 * <li>useActiveObjectMapOnly</li>
 * </ul>
 */
public class POAPolicyMediatorImpl_R_AOM extends POAPolicyMediatorBase_R {
    POAPolicyMediatorImpl_R_AOM( Policies policies, POAImpl poa ) 
    {
	// assert policies.retainServants() 
	super( policies, poa ) ;

	// policies.useActiveObjectMapOnly()
	if (!policies.useActiveMapOnly())
	    throw poa.invocationWrapper().policyMediatorBadPolicyInFactory() ;
    }
    
    protected java.lang.Object internalGetServant( byte[] id, 
	String operation ) throws ForwardRequest
    { 
	java.lang.Object servant = internalIdToServant( id ) ;
	if (servant == null)
	    servant = new NullServantImpl( 
		poa.invocationWrapper().nullServant() ) ;
	return servant ;
    }

    public void etherealizeAll() 
    {	
	// NO-OP
    }

    public ServantManager getServantManager() throws WrongPolicy
    {
        throw new WrongPolicy();
    }

    public void setServantManager( ServantManager servantManager ) 
	throws WrongPolicy
    {
        throw new WrongPolicy();
    }

    public Servant getDefaultServant() throws NoServant, WrongPolicy 
    {
	throw new WrongPolicy();
    }

    public void setDefaultServant( Servant servant ) throws WrongPolicy
    {
	throw new WrongPolicy();
    }

    public Servant idToServant( byte[] id ) 
	throws WrongPolicy, ObjectNotActive
    {
	Servant s = internalIdToServant( id ) ; 

	if (s == null)
	    throw new ObjectNotActive() ;
	else
	    return s;                
    }
}