/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* --------------
* RangeType.java
* --------------
* (C) Copyright 2005-2008, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes:
* --------
* 24-Feb-2005 : Version 1 (DG);
*
*/
package org.jfree.data;
import java.io.ObjectStreamException;
import java.io.Serializable;
/**
* Used to indicate the type of range to display on an axis (full, positive or
* negative).
*/
public final class RangeType implements Serializable {
/** For serialization. */
private static final long serialVersionUID = -9073319010650549239L;
/** Full range (positive and negative). */
public static final RangeType FULL = new RangeType("RangeType.FULL");
/** Positive range. */
public static final RangeType POSITIVE
= new RangeType("RangeType.POSITIVE");
/** Negative range. */
public static final RangeType NEGATIVE
= new RangeType("RangeType.NEGATIVE");
/** The name. */
private String name;
/**
* Private constructor.
*
* @param name the name.
*/
private RangeType(String name) {
this.name = name;
}
/**
* Returns a string representing the object.
*
* @return The string.
*/
public String toString() {
return this.name;
}
/**
* Returns <code>true</code> if this object is equal to the specified
* object, and <code>false</code> otherwise.
*
* @param obj the other object.
*
* @return A boolean.
*/
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof RangeType)) {
return false;
}
RangeType that = (RangeType) obj;
if (!this.name.equals(that.toString())) {
return false;
}
return true;
}
/**
* Returns a hash code value for the object.
*
* @return The hashcode
*/
public int hashCode() {
return this.name.hashCode();
}
/**
* Ensures that serialization returns the unique instances.
*
* @return The object.
*
* @throws ObjectStreamException if there is a problem.
*/
private Object readResolve() throws ObjectStreamException {
if (this.equals(RangeType.FULL)) {
return RangeType.FULL;
}
else if (this.equals(RangeType.POSITIVE)) {
return RangeType.POSITIVE;
}
else if (this.equals(RangeType.NEGATIVE)) {
return RangeType.NEGATIVE;
}
return null;
}
}
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