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


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.JRDatasetParameter;
34 import net.sf.jasperreports.engine.JRDatasetRun;
35 import net.sf.jasperreports.engine.JRExpression;
36
37 /**
38  * Base implementation of the {@link net.sf.jasperreports.engine.JRDatasetRun JRDatasetRun} interface.
39  *
40  * @author Lucian Chirita (lucianc@users.sourceforge.net)
41  * @version $Id: JRBaseDatasetRun.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
42  */
43 public class JRBaseDatasetRun implements JRDatasetRun, Serializable JavaDoc
44 {
45     private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
46
47     protected String JavaDoc datasetName;
48     protected JRExpression parametersMapExpression;
49     protected JRDatasetParameter[] parameters;
50     protected JRExpression connectionExpression;
51     protected JRExpression dataSourceExpression;
52     
53     
54     /**
55      * Creates an empty object.
56      */
57     protected JRBaseDatasetRun()
58     {
59     }
60
61     
62     /**
63      * Creates a copy of a dataset instantiation.
64      *
65      * @param datasetRun the dataset instantiation
66      * @param factory the base object factory
67      */
68     protected JRBaseDatasetRun(JRDatasetRun datasetRun, JRBaseObjectFactory factory)
69     {
70         factory.put(datasetRun, this);
71         
72         datasetName = datasetRun.getDatasetName();
73         parametersMapExpression = factory.getExpression(datasetRun.getParametersMapExpression());
74         connectionExpression = factory.getExpression(datasetRun.getConnectionExpression());
75         dataSourceExpression = factory.getExpression(datasetRun.getDataSourceExpression());
76         
77         JRDatasetParameter[] datasetParams = datasetRun.getParameters();
78         if (datasetParams != null && datasetParams.length > 0)
79         {
80             parameters = new JRBaseDatasetParameter[datasetParams.length];
81             for (int i = 0; i < parameters.length; i++)
82             {
83                 parameters[i] = factory.getDatasetParameter(datasetParams[i]);
84             }
85         }
86     }
87
88     public String JavaDoc getDatasetName()
89     {
90         return datasetName;
91     }
92
93     public JRExpression getParametersMapExpression()
94     {
95         return parametersMapExpression;
96     }
97
98     public JRDatasetParameter[] getParameters()
99     {
100         return parameters;
101     }
102
103     public JRExpression getConnectionExpression()
104     {
105         return connectionExpression;
106     }
107
108     public JRExpression getDataSourceExpression()
109     {
110         return dataSourceExpression;
111     }
112 }
113
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