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


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.
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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.
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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
49 // Java classes
50 import java.util.List JavaDoc;
51
52 import org.apache.torque.TorqueException;
53 import org.apache.torque.util.Criteria;
54
55 import org.tigris.scarab.tools.localization.L10NKeySet;
56 import org.tigris.scarab.util.ScarabException;
57 import org.tigris.scarab.services.cache.ScarabCache;
58
59 /**
60  * This class manages ActivitySetType objects.
61  *
62  * @author <a HREF="mailto:jmcnally@collab.net">John McNally</a>
63  * @author <a HREF="mailto:jon@collab.net">Jon S. Stevens</a>
64  * @version $Id: ActivitySetTypeManager.java 9104 2004-05-10 21:04:51Z dabbous $
65  */
66 public class ActivitySetTypeManager
67     extends BaseActivitySetTypeManager
68 {
69     // the following Strings are method names that are used in caching results
70 private static final String JavaDoc TRANSACTION_TYPE =
71         "ActivitySetType";
72     private static final String JavaDoc GET_INSTANCE =
73         "getInstance";
74
75     /**
76      * Creates a new <code>ActivitySetTypeManager</code> instance.
77      *
78      * @exception TorqueException if an error occurs
79      */
80     public ActivitySetTypeManager()
81         throws TorqueException
82     {
83         super();
84     }
85
86     public static ActivitySetType getInstance(String JavaDoc activitySetTypeName)
87         throws Exception JavaDoc
88     {
89         ActivitySetType ttype = null;
90         Object JavaDoc obj = ScarabCache.get(TRANSACTION_TYPE, GET_INSTANCE,
91                                      activitySetTypeName);
92         if (obj == null)
93         {
94             Criteria crit = new Criteria();
95             crit.add(ActivitySetTypePeer.NAME, activitySetTypeName);
96             List JavaDoc activitySetTypes = ActivitySetTypePeer.doSelect(crit);
97             if (activitySetTypes.size() < 1)
98             {
99                 throw new ScarabException(
100                         L10NKeySet.ExceptionActivitySetTypenameNotFound,
101                         activitySetTypeName);
102             }
103             if (activitySetTypes.size() > 1)
104             {
105                 throw new ScarabException(
106                         L10NKeySet.ExceptionActivitySetDuplicateTypename,
107                         activitySetTypeName);
108             }
109             ttype = (ActivitySetType)activitySetTypes.get(0);
110             ScarabCache.put(ttype, "ActivitySetType", "getInstance",
111                             activitySetTypeName);
112         }
113         else
114         {
115             ttype = (ActivitySetType)obj;
116         }
117         
118         return ttype;
119     }
120 }
121
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