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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * accompanied this code).

 *

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package sun.jvmstat.perfdata.monitor;

import sun.jvmstat.monitor.*;

import java.nio.LongBuffer;

/**

 * Class for monitoring a PerfData Long instrument.

 *

 * @author Brian Doherty

 * @since 1.5

 */

public class PerfLongMonitor extends AbstractMonitor implements LongMonitor {

    /**

     * The buffer containing the data for the long instrument.

     */

    LongBuffer lb;

    /**

     * Constructor to create a LongMonitor object for the long instrument

     * represented by the data in the given buffer.

     *

     * @param name the name of the long instrument

     * @param u the units of measure attribute

     * @param v the variability attribute

     * @param supported support level indicator

     * @param lb the buffer containing the long instrument data.

     */

    public PerfLongMonitor(String name, Units u, Variability v,

                           boolean supported, LongBuffer lb) {

        super(name, u, v, supported);

        this.lb = lb;

    }

    /**

     * {@inheritDoc}

     * The object returned contains a Long object containing the

     * current value of the LongInstrument.

     *

     * @return Object - the current value of the the LongInstrument. The

     *                  return type is guaranteed to be of type Long.

     */

    public Object getValue() {

        return new Long(lb.get(0));

    }

    /**

     * Return the current value of the LongInstrument as an long.

     *

     * @return long - the current value of the LongInstrument

     */

    public long longValue() {

        return lb.get(0);

    }

}