KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > tigris > scarab > om > AttributeType


1 package org.tigris.scarab.om;
2
3 /* ================================================================
4  * Copyright (c) 2000-2002 CollabNet. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are
8  * met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
16  *
17  * 3. The end-user documentation included with the redistribution, if
18  * any, must include the following acknowlegement: "This product includes
19  * software developed by Collab.Net <http://www.Collab.Net/>."
20  * Alternately, this acknowlegement may appear in the software itself, if
21  * and wherever such third-party acknowlegements normally appear.
22  *
23  * 4. The hosted project names must not be used to endorse or promote
24  * products derived from this software without prior written
25  * permission. For written permission, please contact info@collab.net.
26  *
27  * 5. Products derived from this software may not use the "Tigris" or
28  * "Scarab" names nor may "Tigris" or "Scarab" appear in their names without
29  * prior written permission of Collab.Net.
30  *
31  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
32  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
33  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
34  * IN NO EVENT SHALL COLLAB.NET OR ITS CONTRIBUTORS BE LIABLE FOR ANY
35  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
37  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
38  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
39  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
40  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42  *
43  * ====================================================================
44  *
45  * This software consists of voluntary contributions made by many
46  * individuals on behalf of Collab.Net.
47  */
48 // Java classes
49 import java.util.List JavaDoc;
50
51 // Turbine classes
52 import org.apache.torque.om.Persistent;
53 import org.apache.torque.util.Criteria;
54 import org.apache.torque.TorqueException;
55
56 // Scarab classes
57 import org.tigris.scarab.tools.localization.L10NKeySet;
58 import org.tigris.scarab.util.ScarabException;
59 import org.tigris.scarab.services.cache.ScarabCache;
60
61 /**
62  * This class represents an AttributeType
63  *
64  * @author <a HREF="mailto:jon@collab.net">Jon S. Stevens</a>
65  * @version $Id: AttributeType.java 9104 2004-05-10 21:04:51Z dabbous $
66  */
67 public class AttributeType
68     extends BaseAttributeType
69     implements Persistent
70 {
71     // the following Strings are method names that are used in caching results
72 private static final String JavaDoc ATTRIBUTETYPE =
73         "AttributeType";
74     private static final String JavaDoc GET_INSTANCE =
75         "getInstance";
76     private static final String JavaDoc GET_ATTRIBUTE_CLASS = "getAttributeClass";
77     
78     /* This interpretation of attribute type stretches its original
79        meaning so I will try to avoid it. - jdm
80     protected boolean onePerModule;
81     
82     /**
83      * Get the value of onePerModule.
84      * @return value of onePerModule.
85      * /
86     public boolean isOnePerModule()
87     {
88         return onePerModule;
89     }
90     
91     /**
92      * Set the value of onePerModule.
93      * @param v Value to assign to onePerModule.
94      * /
95     public void setOnePerModule(boolean v)
96     {
97         this.onePerModule = v;
98     }
99      */
100
101     /*
102
103     private static final String =
104         "";
105         List result = null;
106         Object obj = ScarabCache.get(this, ,
107                                     );
108         if (obj == null)
109         {
110
111             ScarabCache.put(result, this, ,);
112         }
113         else
114         {
115             result = (List)obj;
116         }
117         return result;
118     */
119
120     /**
121      * Override the base class to provide caching of AttributeClass objects
122      * and save a hit to the database.
123      */
124     public AttributeClass getAttributeClass()
125         throws TorqueException
126     {
127         AttributeClass result = null;
128         Object JavaDoc obj = ScarabCache.get(this, GET_ATTRIBUTE_CLASS);
129         if (obj == null)
130         {
131             result = super.getAttributeClass();
132             ScarabCache.put(result, this, GET_ATTRIBUTE_CLASS);
133         }
134         else
135         {
136             result = (AttributeClass)obj;
137         }
138         return result;
139     }
140     
141     public static AttributeType getInstance(String JavaDoc attributeTypeName)
142         throws Exception JavaDoc
143     {
144         AttributeType result = null;
145         Object JavaDoc obj = ScarabCache.get(ATTRIBUTETYPE, GET_INSTANCE,
146                                      attributeTypeName);
147         if (obj == null)
148         {
149             Criteria crit = new Criteria();
150             crit.add(AttributeTypePeer.ATTRIBUTE_TYPE_NAME, attributeTypeName);
151             List JavaDoc attributeTypes = AttributeTypePeer.doSelect(crit);
152             if(attributeTypes.size() > 1)
153             {
154                 throw new ScarabException(L10NKeySet.ExceptionDuplicateAttributeTypeName,
155                                           attributeTypeName);
156             }
157             result = (AttributeType)attributeTypes.get(0);
158             ScarabCache.put(result, ATTRIBUTETYPE, GET_INSTANCE,
159                             attributeTypeName);
160         }
161         else
162         {
163             result = (AttributeType)obj;
164         }
165         return result;
166     }
167 }
168
169
170
171
Popular Tags