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Java > Open Source Codes > org > jboss > ejb > plugins > cmp > jdbc > bridge > CMRMessage


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * 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 JavaDoc;
25 import java.io.ObjectStreamException JavaDoc;
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: 37459 $
34  */
35 public final class CMRMessage implements Serializable JavaDoc
36 {
37    private static int nextOrdinal = 0;
38    private static final CMRMessage[] VALUES = new CMRMessage[5];
39
40    public static final CMRMessage GET_RELATED_ID = new CMRMessage("GET_RELATED_ID");
41    public static final CMRMessage ADD_RELATION = new CMRMessage("ADD_RELATION");
42    public static final CMRMessage REMOVE_RELATION = new CMRMessage("REMOVE_RELATION");
43    public static final CMRMessage SCHEDULE_FOR_CASCADE_DELETE = new CMRMessage("CASCADE_DELETE");
44    public static final CMRMessage SCHEDULE_FOR_BATCH_CASCADE_DELETE = new CMRMessage("BATCH_CASCADE_DELETE");
45
46
47    private final transient String JavaDoc name;
48    private final int ordinal;
49
50    private CMRMessage(String JavaDoc name)
51    {
52       this.name = name;
53       this.ordinal = nextOrdinal++;
54       VALUES[ordinal] = this;
55    }
56
57    public String JavaDoc toString()
58    {
59       return name;
60    }
61
62    Object JavaDoc readResolve() throws ObjectStreamException JavaDoc
63    {
64       return VALUES[ordinal];
65    }
66
67 }
68
69
70
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