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Java > Open Source Codes > org > jboss > reflect > plugins > EnumConstantInfoImpl


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.reflect.plugins;
23
24 import java.io.Serializable JavaDoc;
25
26 import org.jboss.reflect.spi.EnumConstantInfo;
27 import org.jboss.reflect.spi.EnumInfo;
28 import org.jboss.util.JBossObject;
29
30 /**
31  * An enumeration constant
32  *
33  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
34  * @author <a HREF="mailto:adrian@jboss.org">Adrian Brock</a>
35  */
36 public class EnumConstantInfoImpl extends JBossObject implements EnumConstantInfo, Serializable JavaDoc
37 {
38    /** serialVersionUID */
39    private static final long serialVersionUID = 3761411923568243761L;
40
41    /** The constant name */
42    protected String JavaDoc name;
43    
44    /** The enumeration */
45    protected EnumInfo declaring;
46    
47    /** The hash code */
48    protected int hash = -1;
49
50    /**
51     * Create a new constant
52     */
53    public EnumConstantInfoImpl()
54    {
55    }
56       
57    /**
58     * Create a new constant
59     *
60     * @param name the name
61     * @param declaring the enumeration
62     */
63    public EnumConstantInfoImpl(String JavaDoc name, EnumInfo declaring)
64    {
65       this.name = name;
66       this.declaring = declaring;
67       calculateHash();
68    }
69
70    /**
71     * Get the name
72     *
73     * @return the name
74     */
75    public String JavaDoc getName()
76    {
77       return name;
78    }
79
80    /**
81     * Get the declaring enumeration
82     *
83     * @return the enumeration
84     */
85    public EnumInfo getDeclaring()
86    {
87       return declaring;
88    }
89
90    public boolean equals(Object JavaDoc o)
91    {
92       if (this == o) return true;
93       if (!(o instanceof EnumConstantInfoImpl)) return false;
94
95       final EnumConstantInfoImpl enumConstantInfo = (EnumConstantInfoImpl) o;
96
97       if (name != enumConstantInfo.name)
98          return false;
99       if (!declaring.equals(enumConstantInfo.declaring))
100          return false;
101
102       return true;
103    }
104
105    public int hashCode() { return hash; }
106
107    /**
108     * Calculate the hash code
109     */
110    protected void calculateHash()
111    {
112       int result = name.hashCode();
113       result = 29 * result + declaring.hashCode();
114       hash = result;
115    }
116 }
117
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