ConsumerEvent.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
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 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package org.opensolaris.os.dtrace;

import java.util.EventObject;

/**
 * An event indicating a state change in a DTrace {@link Consumer}.
 *
 * @see ConsumerListener
 *
 * @author Tom Erickson
 */
public class ConsumerEvent extends EventObject {
    static final long serialVersionUID = 1659441401142401810L;

    /**
     * Creates a consumer event with the given source {@link Consumer}
     * and nanosecond timestamp.
     *
     * @param source  the {@link Consumer} that is the source of the
     * event
     * @param timeNanos  nanosecond timestamp of this event
     */
    public
    ConsumerEvent(Object source, long timeNanos)
    {
	super(source);
    }

    /**
     * Gets the nanosecond timestamp of this event.
     *
     * @return nanosecond timestamp of the event on the system where the
     * consumer opened a native DTrace library handle
     */
    public long
    getTimestamp()
    {
	return -1;
    }
}