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Java > Open Source Codes > org > jboss > invocation > InvocationType


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.invocation;
23
24 import java.io.Serializable JavaDoc;
25 import java.io.ObjectStreamException JavaDoc;
26
27 /** Type safe enumeration used for to identify the invocation types.
28  *
29  * @author Scott.Stark@jboss.org
30  * @author Christoph.Jung@infor.de
31  * @version $Revision: 37459 $
32  */
33 public final class InvocationType implements Serializable JavaDoc
34 {
35    /** Serial Version Identifier. @since 1.2 */
36    private static final long serialVersionUID = 6460196085190851775L;
37    /** The method-intf names for the InvocationType enums */
38    private static final String JavaDoc[] INTERFACE_NAMES = { "Remote",
39       "Local", "Home", "LocalHome", "ServiceEndpoint"
40    };
41
42    /** The max ordinal value in use for the InvocationType enums. When you add a
43     * new key enum value you must assign it an ordinal value of the current
44     * MAX_TYPE_ID+1 and update the MAX_TYPE_ID value.
45     */
46    private static final int MAX_TYPE_ID = 4;
47
48    /** The array of InvocationKey indexed by ordinal value of the key */
49    private static final InvocationType[] values = new InvocationType[MAX_TYPE_ID+1];
50    public static final InvocationType REMOTE =
51          new InvocationType("REMOTE", 0);
52    public static final InvocationType LOCAL =
53          new InvocationType("LOCAL", 1);
54    public static final InvocationType HOME =
55          new InvocationType("HOME", 2);
56    public static final InvocationType LOCALHOME =
57          new InvocationType("LOCALHOME", 3);
58    public static final InvocationType SERVICE_ENDPOINT =
59          new InvocationType("SERVICE_ENDPOINT", 4);
60
61    private final transient String JavaDoc name;
62
63    // this is the only value serialized
64 private final int ordinal;
65
66    private InvocationType(String JavaDoc name, int ordinal)
67    {
68       this.name = name;
69       this.ordinal = ordinal;
70       values[ordinal] = this;
71    }
72
73    public String JavaDoc toString()
74    {
75       return name;
76    }
77    /** Get the method-intf name for the type
78     *
79     * @return one of: "Remote", "Local", "Home", "LocalHome", "ServiceEndpoint"
80     */
81    public String JavaDoc toInterfaceString()
82    {
83       return INTERFACE_NAMES[ordinal];
84    }
85
86    Object JavaDoc readResolve() throws ObjectStreamException JavaDoc
87    {
88       return values[ordinal];
89    }
90 }
91
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