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Java > Open Source Codes > com > genimen > djeneric > tools > strongtyper > SessionGenerator


1 /*
2  * Copyright (c) 2001-2005 by Genimen BV (www.genimen.com) All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without modification, is permitted
5  * provided that the following conditions are met:
6  * - Redistributions of source code must retain the above copyright notice, this list of conditions
7  * and the following disclaimer.
8  * - Redistributions in binary form must reproduce the above copyright notice, this list of
9  * conditions and the following disclaimer in the documentation and/or other materials
10  * provided with the distribution.
11  * - All advertising materials mentioning features or use of this software must display the
12  * following acknowledgment: "This product includes Djeneric."
13  * - Products derived from this software may not be called "Djeneric" nor may
14  * "Djeneric" appear in their names without prior written permission of Genimen BV.
15  * - Redistributions of any form whatsoever must retain the following acknowledgment: "This
16  * product includes Djeneric."
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL GENIMEN BV, DJENERIC.ORG,
22  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 package com.genimen.djeneric.tools.strongtyper;
31
32 import com.genimen.djeneric.repository.DjExtent;
33
34 public class SessionGenerator extends Generator
35 {
36   DjExtent[] _extents = null;
37
38   public SessionGenerator(DjExtent[] extents) throws Exception JavaDoc
39   {
40     _extents = extents;
41     if (extents == null || extents.length == 0) throw new Exception JavaDoc(
42         "Can not generate a session without any Extents selected");
43   }
44
45   public String JavaDoc getClassName()
46   {
47     return getSessionClassName() + (isAbstract() ? getGeneratedSuffix() : "");
48   }
49
50   public String JavaDoc getPackageName()
51   {
52     return getImplPackageName();
53   }
54
55   public String JavaDoc getCode() throws Exception JavaDoc
56   {
57     StringBuffer JavaDoc code = new StringBuffer JavaDoc(5000);
58     if (getPackageName().trim().length() > 0) code.append("package " + getPackageName() + ";\n\n");
59
60     code.append("// THIS FILE CAN BE MODIFED SAFELY\n");
61     code.append("// THIS FILE WILL NEVER BE OVERWRITTEN BY THE STRONGTYPER\n\n");
62
63     code.append("import com.genimen.djeneric.repository.exceptions.*;\n\n");
64     code.append("public class " + getClassName() + " extends " + getAbstractSessionClassName() + "\n{\n");
65
66     code.append("\n" + " protected " + getClassName() + "(" + getManagerClassName()
67                 + " mgr) throws ObjectNotDefinedException\n" + " { \n" + " super(mgr);\n" + " }\n\n"
68                 + " // Uncomment and modify the following code to activate your own sub classes:\n" + " /*\n"
69                 + " public DjObject createObject(DjExtent extent) throws DjenericException\n" + " { \n"
70                 + " if(!isValid())\n" + " throw new Exception(\"Session closed\");\n"
71                 + " DjObject po = null;\n" + " // for example:\n" + " if(extent == _" + _extents[0].getName()
72                 + "Extent)\n" + " {\n" + " po = new SubClassed" + getClassName(_extents[0]) + "(this, _"
73                 + _extents[0].getName() + "Extent);\n" + " cacheObject(po);\n" + " }\n" + " else\n"
74                 + " po = super.createObject(extent);\n" + " return po;\n" + " }\n\n" + " */\n");
75
76     code.append("\n}\n");
77
78     return code.toString();
79   }
80
81 }
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