001: /* ========================================================================
002: * JCommon : a free general purpose class library for the Java(tm) platform
003: * ========================================================================
004: *
005: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006: *
007: * Project Info: http://www.jfree.org/jcommon/index.html
008: *
009: * This library is free software; you can redistribute it and/or modify it
010: * under the terms of the GNU Lesser General Public License as published by
011: * the Free Software Foundation; either version 2.1 of the License, or
012: * (at your option) any later version.
013: *
014: * This library is distributed in the hope that it will be useful, but
015: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017: * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022: * USA.
023: *
024: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025: * in the United States and other countries.]
026: *
027: * ---------------------------
028: * FloatObjectDescription.java
029: * ---------------------------
030: * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
031: *
032: * Original Author: Thomas Morgner;
033: * Contributor(s): David Gilbert (for Object Refinery Limited);
034: *
035: * $Id: FloatObjectDescription.java,v 1.3 2005/11/14 11:02:08 mungady Exp $
036: *
037: * Changes (from 19-Feb-2003)
038: * -------------------------
039: * 19-Feb-2003 : Added standard header and Javadocs (DG);
040: * 29-Apr-2003 : Distilled from the JFreeReport project and moved into JCommon
041: *
042: */
043:
044: package org.jfree.xml.factory.objects;
045:
046: /**
047: * An object-description for a <code>Float</code> object.
048: *
049: * @author Thomas Morgner
050: */
051: public class FloatObjectDescription extends AbstractObjectDescription {
052:
053: /**
054: * Creates a new object description.
055: */
056: public FloatObjectDescription() {
057: super (Float.class);
058: setParameterDefinition("value", String.class);
059: }
060:
061: /**
062: * Creates an object based on this description.
063: *
064: * @return The object.
065: */
066: public Object createObject() {
067: final String o = (String) getParameter("value");
068: return Float.valueOf(o);
069: }
070:
071: /**
072: * Sets the parameters of this description object to match the supplied object.
073: *
074: * @param o the object (should be an instance of <code>Float</code>).
075: *
076: * @throws ObjectFactoryException if the object is not an instance of <code>Float</code>.
077: */
078: public void setParameterFromObject(final Object o)
079: throws ObjectFactoryException {
080: if (!(o instanceof Float)) {
081: throw new ObjectFactoryException(
082: "The given object is no java.lang.Float.");
083: }
084: setParameter("value", String.valueOf(o));
085: }
086:
087: /**
088: * Tests for equality.
089: *
090: * @param o the object to test.
091: *
092: * @return A boolean.
093: */
094: public boolean equals(final Object o) {
095: if (this == o) {
096: return true;
097: }
098: if (!(o instanceof AbstractObjectDescription)) {
099: return false;
100: }
101:
102: final AbstractObjectDescription abstractObjectDescription = (AbstractObjectDescription) o;
103:
104: if (Float.TYPE.equals(abstractObjectDescription
105: .getObjectClass())) {
106: return true;
107: }
108: if (Float.class.equals(abstractObjectDescription
109: .getObjectClass())) {
110: return true;
111: }
112: return false;
113: }
114:
115: /**
116: * Returns a hash code.
117: *
118: * @return A hash code.
119: */
120: public int hashCode() {
121: return getObjectClass().hashCode();
122: }
123:
124: }
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