noderecord.java

High performance DB query

/*
 * @(#)$Id: NodeRecord.java,v 1.5 2004/07/02 23:59:20 huebsch Exp $
 *
 * Copyright (c) 2001-2004 Regents of the University of California.
 * All rights reserved.
 *
 * This file is distributed under the terms in the attached BERKELEY-LICENSE
 * file. If you do not find these files, copies can be found by writing to:
 * Computer Science Division, Database Group, Universite of California,
 * 617 Soda Hall #1776, Berkeley, CA 94720-1776. Attention: Berkeley License
 *
 * Copyright (c) 2003-2004 Intel Corporation. All rights reserved.
 *
 * This file is distributed under the terms in the attached INTEL-LICENSE file.
 * If you do not find these files, copies can be found by writing to:
 * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300,
 * Berkeley, CA, 94704.  Attention:  Intel License Inquiry.
 */


package overlay.location.can;

import services.network.Payload;
import util.network.serialization.SerializationManager;

/**
 * A node record.  It contains the zone, time last heard from and dimension of
 * a node
 */
public class NodeRecord {

    protected Zone zone;
    protected double lastHeard;
    protected int dimension;
    protected int version;

    /**
     * Constructor NodeRecord
     *
     * @param zone
     * @param lastHeard
     * @param dimension
     * @param version
     */
    public NodeRecord(Zone zone, double lastHeard, int dimension, int version) {
        this.zone = zone;
        this.lastHeard = lastHeard;
        this.dimension = dimension;
        this.version = version;
    }

    /**
     * Constructor NodeRecord
     *
     * @param record
     */
    public NodeRecord(NodeRecord record) {
        this.zone = record.zone;
        this.lastHeard = record.lastHeard;
        this.dimension = record.dimension;
        this.version = record.version;
    }

    /**
     * Method getSize
     * @return
     */
    public int getSize() {
        return SerializationManager.getPayloadSize(zone) + Payload.DOUBLE_SIZE
               + Payload.INT_SIZE + Payload.INT_SIZE;
    }
}