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Java > Open Source Codes > net > sf > jasperreports > engine > xml > JRSubreportReturnValueFactory


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.xml;
29
30 import net.sf.jasperreports.engine.JRException;
31 import net.sf.jasperreports.engine.JRVariable;
32 import net.sf.jasperreports.engine.design.JRDesignSubreportReturnValue;
33 import net.sf.jasperreports.engine.design.JasperDesign;
34
35 import org.xml.sax.Attributes JavaDoc;
36
37 /**
38  * Factory class for {@link net.sf.jasperreports.engine.JRSubreportReturnValue JRSubreportReturnValue}
39  * creation.
40  *
41  * @author Lucian Chirita (lucianc@users.sourceforge.net)
42  * @version $Id: JRSubreportReturnValueFactory.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
43  */
44 public class JRSubreportReturnValueFactory extends JRBaseFactory
45 {
46     private static final String JavaDoc ATTRIBUTE_subreportVariable = "subreportVariable";
47
48     private static final String JavaDoc ATTRIBUTE_toVariable = "toVariable";
49
50     private static final String JavaDoc ATTRIBUTE_calculation = "calculation";
51
52     private static final String JavaDoc ATTRIBUTE_incrementerFactoryClass = "incrementerFactoryClass";
53
54     /**
55      * Creates an object from a subreport copied value XML element.
56      *
57      * @param atts the element attributes
58      * @return a {@link JRDesignSubreportReturnValue JRDesignSubreportReturnValue} object
59      */
60     public Object JavaDoc createObject(Attributes JavaDoc atts)
61     {
62         JRXmlLoader xmlLoader = (JRXmlLoader) digester.peek(digester.getCount() - 1);
63         JasperDesign design = (JasperDesign) digester.peek(digester.getCount() - 2);
64
65         String JavaDoc variableName = atts.getValue(ATTRIBUTE_toVariable);
66         JRVariable variable = (JRVariable) design.getVariablesMap().get(variableName);
67         if (variable == null)
68         {
69             xmlLoader.addError(new JRException("Unknown variable " + variableName));
70         }
71         
72         JRDesignSubreportReturnValue returnValue = new JRDesignSubreportReturnValue();
73         returnValue.setSubreportVariable(atts.getValue(ATTRIBUTE_subreportVariable));
74         returnValue.setToVariable(variableName);
75
76         Byte JavaDoc calculation = (Byte JavaDoc)JRXmlConstants.getCalculationMap().get(atts.getValue(ATTRIBUTE_calculation));
77         if (calculation != null)
78         {
79             returnValue.setCalculation(calculation.byteValue());
80         }
81         
82         String JavaDoc incrementerFactoryClass = atts.getValue(ATTRIBUTE_incrementerFactoryClass);
83         if (incrementerFactoryClass != null)
84         {
85             returnValue.setIncrementerFactoryClassName(incrementerFactoryClass);
86         }
87
88         return returnValue;
89     }
90
91 }
92
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