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


1 package org.tigris.scarab.om;
2
3 /* ================================================================
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6  * Redistribution and use in source and binary forms, with or without
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9  *
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11  * notice, this list of conditions and the following disclaimer.
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14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
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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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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.
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31  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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44  *
45  * This software consists of voluntary contributions made by many
46  * individuals on behalf of Collab.Net.
47  */
48
49 import java.util.List JavaDoc;
50
51 import org.apache.torque.TorqueException;
52 import org.apache.torque.om.Persistent;
53 import org.apache.torque.util.Criteria;
54
55 import org.tigris.scarab.services.cache.ScarabCache;
56
57 /**
58  * This class manages DependType objects.
59  *
60  * @author <a HREF="mailto:jmcnally@collab.net">John McNally</a>
61  * @author <a HREF="mailto:jon@collab.net">Jon S. Stevens</a>
62  * @author <a HREF="mailto:elicia@collab.net">Elicia David</a>
63  * @version $Id: DependTypeManager.java 9104 2004-05-10 21:04:51Z dabbous $
64  */
65 public class DependTypeManager
66     extends BaseDependTypeManager
67 {
68     // the following Strings are method names that are used in caching results
69 private static final String JavaDoc GET_ALL =
70         "getAll";
71
72     private static final String JavaDoc DEPENDTYPE =
73         "DependType";
74     private static final String JavaDoc FIND_DEPENDTYPE_BY_NAME =
75         "findDependTypeByName";
76
77     /**
78      * Creates a new <code>DependTypeManager</code> instance.
79      *
80      * @exception TorqueException if an error occurs
81      */
82     public DependTypeManager()
83         throws TorqueException
84     {
85         super();
86         setRegion(getClassName().replace('.', '_'));
87     }
88
89     /**
90      * Creates a new <code>DependType</code> instance.
91      *
92      * @exception TorqueException if an error occurs
93      */
94     public static DependType getInstance(String JavaDoc dependTypeName)
95         throws TorqueException
96     {
97         DependType result = null;
98         Object JavaDoc obj = ScarabCache.get(DEPENDTYPE, FIND_DEPENDTYPE_BY_NAME,
99                                      dependTypeName);
100         if (obj == null)
101         {
102             Criteria crit = new Criteria();
103             crit.add(DependTypePeer.DEPEND_TYPE_NAME, dependTypeName);
104             List JavaDoc dependTypes = DependTypePeer.doSelect(crit);
105             if (dependTypes == null || dependTypes.size() == 0)
106             {
107                 throw new TorqueException("Invalid issue depend type: " +
108                                     dependTypeName); //EXCEPTION
109 }
110             result = (DependType)dependTypes.get(0);
111             ScarabCache.put(result, DEPENDTYPE, FIND_DEPENDTYPE_BY_NAME,
112                             dependTypeName);
113         }
114         else
115         {
116             result = (DependType)obj;
117         }
118         return result;
119     }
120     
121     public static List JavaDoc getAll()
122         throws TorqueException
123     {
124         return getManager().getAllImpl();
125     }
126
127     public List JavaDoc getAllImpl()
128         throws TorqueException
129     {
130         List JavaDoc result = null;
131         Object JavaDoc obj = getMethodResult().get(this.toString(), GET_ALL);
132         if (obj == null)
133         {
134             result = DependTypePeer.doSelect(new Criteria());
135             getMethodResult().put(result, this.toString(), GET_ALL);
136         }
137         else
138         {
139             result = (List JavaDoc)obj;
140         }
141         return result;
142     }
143
144     protected Persistent putInstanceImpl(Persistent om)
145         throws TorqueException
146     {
147         Persistent oldOm = super.putInstanceImpl(om);
148         getMethodResult().remove(this, GET_ALL);
149         return oldOm;
150     }
151 }
152
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