01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.ejb.plugins.local;
23:
24: import java.lang.reflect.InvocationHandler;
25: import java.lang.reflect.Method;
26:
27: /** The EJBLocal proxy for an entity
28:
29: @author <a href="mailto:scott.stark@jboss.org">Scott Stark</a>
30: @version $Revision: 57209 $
31: */
32: class EntityProxy extends LocalProxy implements InvocationHandler {
33: static final long serialVersionUID = 5196148608172665115L;
34: private Object cacheKey;
35: private boolean removed;
36:
37: EntityProxy(String jndiName, Object id,
38: BaseLocalProxyFactory factory) {
39: super (jndiName, factory);
40: cacheKey = id;
41: }
42:
43: protected Object getId() {
44: return cacheKey;
45: }
46:
47: public final Object invoke(final Object proxy, final Method m,
48: Object[] args) throws Throwable {
49: if (removed) {
50: throw new javax.ejb.NoSuchObjectLocalException(
51: "The instance has been removed: " + toStringImpl());
52: }
53:
54: if (args == null)
55: args = EMPTY_ARGS;
56:
57: Object retValue = super .invoke(proxy, m, args);
58: if (retValue == null) {
59: // If not taken care of, go on and call the container
60: retValue = factory.invoke(cacheKey, m, args);
61: }
62:
63: if (m.equals(REMOVE)) {
64: removed = true;
65: }
66:
67: return retValue;
68: }
69:
70: }
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