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package com.sun.mail.gimap;

import javax.mail.Message;
import javax.mail.search.StringTerm;

/**
 * This class implements searching for the Gmail thread ID.
 *
 * @since JavaMail 1.4.6
 * @author Bill Shannon
 */

public final class GmailThrIdTerm extends LongTerm {

    private static final long serialVersionUID = -4549268502183739744L;

    /**
     * Constructor.
     *
     * @param thrId  the thread ID
     */
    public GmailThrIdTerm(long thrId) {
	super(thrId);
    }

    /**
     * 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) {
	long thrId;

	try {
	    if (msg instanceof GmailMessage)
		thrId = ((GmailMessage)msg).getThrId();
	    else
		return false;
	} catch (Exception e) {
	    return false;
	}

	return super.match(thrId);
    }

    /**
     * Equality comparison.
     *
     * @param	obj	the object to compare with
     * @return		true if equal
     */
    public boolean equals(Object obj) {
	if (!(obj instanceof GmailThrIdTerm))
	    return false;
	return super.equals(obj);
    }
}
