001: /*
002: * ============================================================================
003: * GNU Lesser General Public License
004: * ============================================================================
005: *
006: * JasperReports - Free Java report-generating library.
007: * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
008: *
009: * This library is free software; you can redistribute it and/or
010: * modify it under the terms of the GNU Lesser General Public
011: * License as published by the Free Software Foundation; either
012: * version 2.1 of the License, or (at your option) any later version.
013: *
014: * This library is distributed in the hope that it will be useful,
015: * but WITHOUT ANY WARRANTY; without even the implied warranty of
016: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
017: * Lesser General Public License for more details.
018: *
019: * You should have received a copy of the GNU Lesser General Public
020: * License along with this library; if not, write to the Free Software
021: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
022: *
023: * JasperSoft Corporation
024: * 303 Second Street, Suite 450 North
025: * San Francisco, CA 94107
026: * http://www.jaspersoft.com
027: */
028: package net.sf.jasperreports.engine.base;
029:
030: import java.io.Serializable;
031:
032: import net.sf.jasperreports.engine.JRConstants;
033: import net.sf.jasperreports.engine.JRField;
034: import net.sf.jasperreports.engine.JRPropertiesMap;
035: import net.sf.jasperreports.engine.JRRuntimeException;
036: import net.sf.jasperreports.engine.util.JRClassLoader;
037:
038: /**
039: * @author Teodor Danciu (teodord@users.sourceforge.net)
040: * @version $Id: JRBaseField.java 1712 2007-04-30 18:04:51Z teodord $
041: */
042: public class JRBaseField implements JRField, Serializable {
043:
044: /**
045: *
046: */
047: private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
048:
049: /**
050: *
051: */
052: protected String name = null;
053: protected String description = null;
054: protected String valueClassName = java.lang.String.class.getName();
055: protected String valueClassRealName = null;
056:
057: protected transient Class valueClass = null;
058:
059: protected JRPropertiesMap propertiesMap;
060:
061: /**
062: *
063: */
064: protected JRBaseField() {
065: this .propertiesMap = new JRPropertiesMap();
066: }
067:
068: /**
069: *
070: */
071: protected JRBaseField(JRField field, JRBaseObjectFactory factory) {
072: factory.put(field, this );
073:
074: name = field.getName();
075: description = field.getDescription();
076: valueClassName = field.getValueClassName();
077:
078: this .propertiesMap = field.getPropertiesMap().cloneProperties();
079: }
080:
081: /**
082: *
083: */
084: public String getName() {
085: return this .name;
086: }
087:
088: /**
089: *
090: */
091: public String getDescription() {
092: return this .description;
093: }
094:
095: /**
096: *
097: */
098: public void setDescription(String description) {
099: this .description = description;
100: }
101:
102: /**
103: *
104: */
105: public Class getValueClass() {
106: if (valueClass == null) {
107: String className = getValueClassRealName();
108: if (className != null) {
109: try {
110: valueClass = JRClassLoader
111: .loadClassForName(className);
112: } catch (ClassNotFoundException e) {
113: throw new JRRuntimeException(e);
114: }
115: }
116: }
117:
118: return valueClass;
119: }
120:
121: /**
122: *
123: */
124: public String getValueClassName() {
125: return this .valueClassName;
126: }
127:
128: /**
129: *
130: */
131: private String getValueClassRealName() {
132: if (valueClassRealName == null) {
133: valueClassRealName = JRClassLoader
134: .getClassRealName(valueClassName);
135: }
136:
137: return valueClassRealName;
138: }
139:
140: public JRPropertiesMap getPropertiesMap() {
141: return propertiesMap;
142: }
143:
144: }
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