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Java > Open Source Codes > net > sf > jasperreports > engine > base > JRBaseField


1 /*
2  * ============================================================================
3  * GNU Lesser General Public License
4  * ============================================================================
5  *
6  * JasperReports - Free Java report-generating library.
7  * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * JasperSoft Corporation
24  * 303 Second Street, Suite 450 North
25  * San Francisco, CA 94107
26  * http://www.jaspersoft.com
27  */
28 package net.sf.jasperreports.engine.base;
29
30 import java.io.Serializable JavaDoc;
31
32 import net.sf.jasperreports.engine.JRConstants;
33 import net.sf.jasperreports.engine.JRField;
34 import net.sf.jasperreports.engine.JRRuntimeException;
35 import net.sf.jasperreports.engine.util.JRClassLoader;
36
37
38 /**
39  * @author Teodor Danciu (teodord@users.sourceforge.net)
40  * @version $Id: JRBaseField.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
41  */
42 public class JRBaseField implements JRField, Serializable JavaDoc
43 {
44
45
46     /**
47      *
48      */
49     private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
50
51     /**
52      *
53      */
54     protected String JavaDoc name = null;
55     protected String JavaDoc description = null;
56     protected String JavaDoc valueClassName = java.lang.String JavaDoc.class.getName();
57
58     protected transient Class JavaDoc valueClass = null;
59
60
61     /**
62      *
63      */
64     protected JRBaseField()
65     {
66     }
67     
68     
69     /**
70      *
71      */
72     protected JRBaseField(JRField field, JRBaseObjectFactory factory)
73     {
74         factory.put(field, this);
75         
76         name = field.getName();
77         description = field.getDescription();
78         valueClassName = field.getValueClassName();
79     }
80         
81
82     /**
83      *
84      */
85     public String JavaDoc getName()
86     {
87         return this.name;
88     }
89         
90     /**
91      *
92      */
93     public String JavaDoc getDescription()
94     {
95         return this.description;
96     }
97         
98     /**
99      *
100      */
101     public void setDescription(String JavaDoc description)
102     {
103         this.description = description;
104     }
105     
106     /**
107      *
108      */
109     public Class JavaDoc getValueClass()
110     {
111         if (valueClass == null)
112         {
113             if (valueClassName != null)
114             {
115                 try
116                 {
117                     valueClass = JRClassLoader.loadClassForName(valueClassName);
118                 }
119                 catch(ClassNotFoundException JavaDoc e)
120                 {
121                     throw new JRRuntimeException(e);
122                 }
123             }
124         }
125         
126         return valueClass;
127     }
128     
129     /**
130      *
131      */
132     public String JavaDoc getValueClassName()
133     {
134         return this.valueClassName;
135     }
136         
137
138 }
139
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