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.aspects.dbc.condition;
23:
24: import java.lang.reflect.Constructor;
25:
26: import org.jboss.aop.joinpoint.Invocation;
27:
28: /**
29: *
30: * @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
31: * @version $Revision: 57186 $
32: */
33: public class ConstructorCondition extends ExecutableCondition {
34: Constructor constructor;
35:
36: public ConstructorCondition(Constructor constructor, String condExpr) {
37: super (condExpr, constructor.getClass(), false);
38: this .constructor = constructor;
39: }
40:
41: public boolean equals(Object o) {
42: if (o instanceof ConstructorCondition) {
43: ConstructorCondition cc = (ConstructorCondition) o;
44: if (cc.constructor.equals(constructor)) {
45: return super .equals(o);
46: }
47: }
48: return false;
49: }
50:
51: // ExecutableCondition implementation -------------------------------------
52: protected Object executableObject() {
53: return constructor;
54: }
55:
56: protected Class[] parameterTypes() {
57: return constructor.getParameterTypes();
58: }
59:
60: protected boolean isPredefinedToken(String token) {
61: return token.equals(Condition.TARGET);
62: }
63:
64: protected Object getValueForPredefinedToken(Invocation invocation,
65: Object rtn, String token) {
66: if (token.equals(Condition.TARGET)) {
67: //For constructors the $tgt token corresponds to the return of the method
68: return rtn;
69: }
70:
71: return null;
72: }
73: }
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