/*

 * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * 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.

 *

 * 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).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package sun.jvmstat.monitor.event;

import java.util.List;

import sun.jvmstat.monitor.MonitoredVm;

/**

 * Provides a description of a change in status of the instrumentation

 * exported by the MonitoredVm.

 *

 * @author Brian Doherty

 * @since 1.5

 */

public class MonitorStatusChangeEvent extends VmEvent {

    /**

     * List of instrumentation objects inserted since the last event.

     * Elements of this list will always be of type Monitor.

     */

    protected List inserted;

    /**

     * List of instrumentation objects removed since the last event.

     * Elements of this list will always be of type Monitor.

     */

    protected List removed;

    /**

     * Construct a new MonitorStatusChangeEvent.

     *

     * @param vm the MonitoredVm source of the event.

     * @param inserted the list of instrumentation objects inserted since

     *                 the last event.

     * @param removed the list of instrumentation objects removed since

     *                the last event.

     */

    public MonitorStatusChangeEvent(MonitoredVm vm, List inserted,

                                    List removed) {

        super(vm);

        this.inserted = inserted;

        this.removed = removed;

    }

    /**

     * Return the list of instrumentation objects that were inserted

     * since the last event notification.

     *

     * @return List - a List of Monitor objects that were inserted into the

     *                instrumentation exported by the MonitoredHost. If no

     *                new instrumentation was inserted, an emply List is

     *                returned.

     */

    public List getInserted() {

        return inserted;

    }

    /**

     * Return the set of instrumentation objects that were removed

     * since the last event notification.

     *

     * @return List - a List of Monitor objects that were removed from the

     *                instrumentation exported by the MonitoredHost. If no

     *                instrumentation was removed, an emply List is returned.

     */

    public List getRemoved() {

        return removed;

    }

}