JDK8/Java8源码在线阅读

/*
 * Copyright (c) 1999, 2007, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package javax.management.monitor;

// jmx imports
//
import javax.management.ObjectName;

/**
 * Exposes the remote management interface of the gauge monitor MBean.
 *
 *
 * @since 1.5
 */
public interface GaugeMonitorMBean extends MonitorMBean {

    // GETTERS AND SETTERS
    //--------------------

    /**
     * Gets the derived gauge.
     *
     * @return The derived gauge.
     * @deprecated As of JMX 1.2, replaced by {@link #getDerivedGauge(ObjectName)}
     */
    @Deprecated
    public Number getDerivedGauge();

    /**
     * Gets the derived gauge timestamp.
     *
     * @return The derived gauge timestamp.
     * @deprecated As of JMX 1.2, replaced by {@link #getDerivedGaugeTimeStamp(ObjectName)}
     */
    @Deprecated
    public long getDerivedGaugeTimeStamp();

    /**
     * Gets the derived gauge for the specified MBean.
     *
     * @param object the MBean for which the derived gauge is to be returned
     * @return The derived gauge for the specified MBean if this MBean is in the
     *         set of observed MBeans, or <code>null</code> otherwise.
     *
     */
    public Number getDerivedGauge(ObjectName object);

    /**
     * Gets the derived gauge timestamp for the specified MBean.
     *
     * @param object the MBean for which the derived gauge timestamp is to be returned
     * @return The derived gauge timestamp for the specified MBean if this MBean
     *         is in the set of observed MBeans, or <code>null</code> otherwise.
     *
     */
    public long getDerivedGaugeTimeStamp(ObjectName object);

    /**
     * Gets the high threshold value.
     *
     * @return The high threshold value.
     */
    public Number getHighThreshold();

    /**
     * Gets the low threshold value.
     *
     * @return The low threshold value.
     */
    public Number getLowThreshold();

    /**
     * Sets the high and the low threshold values.
     *
     * @param highValue The high threshold value.
     * @param lowValue The low threshold value.
     * @exception java.lang.IllegalArgumentException The specified high/low threshold is null
     * or the low threshold is greater than the high threshold
     * or the high threshold and the low threshold are not of the same type.
     */
    public void setThresholds(Number highValue, Number lowValue) throws java.lang.IllegalArgumentException;

    /**
     * Gets the high notification's on/off switch value.
     *
     * @return <CODE>true</CODE> if the gauge monitor notifies when
     * exceeding the high threshold, <CODE>false</CODE> otherwise.
     *
     * @see #setNotifyHigh
     */
    public boolean getNotifyHigh();

    /**
     * Sets the high notification's on/off switch value.
     *
     * @param value The high notification's on/off switch value.
     *
     * @see #getNotifyHigh
     */
    public void setNotifyHigh(boolean value);

    /**
     * Gets the low notification's on/off switch value.
     *
     * @return <CODE>true</CODE> if the gauge monitor notifies when
     * exceeding the low threshold, <CODE>false</CODE> otherwise.
     *
     * @see #setNotifyLow
     */
    public boolean getNotifyLow();

    /**
     * Sets the low notification's on/off switch value.
     *
     * @param value The low notification's on/off switch value.
     *
     * @see #getNotifyLow
     */

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