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.cmp.jdbc.bridge;
23:
24: import java.io.Serializable;
25: import java.io.ObjectStreamException;
26:
27: /**
28: * Type safe enumeration of method object is passed through the invocation
29: * interceptor chain and caught by the JDBCRelationInterceptor.
30: *
31: * @author <a href="mailto:dain@daingroup.com">Dain Sundstrom</a>
32: * @author <a href="mailto:alex@jboss.org">Alexey Loubyansky</a>
33: * @version $Revision: 57209 $
34: */
35: public final class CMRMessage implements Serializable {
36: static final long serialVersionUID = 8501394417410748782L;
37:
38: private static int nextOrdinal = 0;
39: private static final CMRMessage[] VALUES = new CMRMessage[5];
40:
41: public static final CMRMessage GET_RELATED_ID = new CMRMessage(
42: "GET_RELATED_ID");
43: public static final CMRMessage ADD_RELATION = new CMRMessage(
44: "ADD_RELATION");
45: public static final CMRMessage REMOVE_RELATION = new CMRMessage(
46: "REMOVE_RELATION");
47: public static final CMRMessage SCHEDULE_FOR_CASCADE_DELETE = new CMRMessage(
48: "CASCADE_DELETE");
49: public static final CMRMessage SCHEDULE_FOR_BATCH_CASCADE_DELETE = new CMRMessage(
50: "BATCH_CASCADE_DELETE");
51:
52: private final transient String name;
53: private final int ordinal;
54:
55: private CMRMessage(String name) {
56: this .name = name;
57: this .ordinal = nextOrdinal++;
58: VALUES[ordinal] = this ;
59: }
60:
61: public String toString() {
62: return name;
63: }
64:
65: Object readResolve() throws ObjectStreamException {
66: return VALUES[ordinal];
67: }
68:
69: }
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