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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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 * enclosed by brackets [] replaced by your own identifying information:
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 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
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 */

package javax.mail.search;

import javax.mail.Message;

/**
 * This class implements comparisons for Message numbers.
 *
 * @author Bill Shannon
 * @author John Mani
 */
public final class MessageNumberTerm extends IntegerComparisonTerm {

    private static final long serialVersionUID = -5379625829658623812L;

    /**
     * Constructor.
     *
     * @param number  the Message number
     */
    public MessageNumberTerm(int number) {
	super(EQ, number);
    }

    /**
     * The match method.
     *
     * @param msg	the Message number is matched with this Message
     * @return		true if the match succeeds, otherwise false
     */
    public boolean match(Message msg) {
	int msgno;

	try {
	    msgno = msg.getMessageNumber();
	} catch (Exception e) {
	    return false;
	}
	
	return super.match(msgno);
    }

    /**
     * Equality comparison.
     */
    public boolean equals(Object obj) {
	if (!(obj instanceof MessageNumberTerm))
	    return false;
	return super.equals(obj);
    }
}




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