/* * Copyright (c) 2004, 2010, 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 sun.jvmstat.monitor; /** * Interface provided by Instrumentation Monitoring Objects. * * @author Brian Doherty * @since 1.5 */public interface Monitor  {     /**     * Returns the name of this instrumentation object.     *     * @return String - the name assigned to this instrumentation monitoring     *                  object     */    String getName();     /**     * Returns the base name of this instrumentation object.     * The base name is the component of the name following the last     * "." character in the name.     *     * @return String - the base name of the name assigned to this     *                  instrumentation monitoring object.     */    String getBaseName();     /**     * Returns the Units for this instrumentation monitoring object.     *     * @return Units - the units of measure attribute     */    Units getUnits();     /**     * Returns the Variability for this instrumentation object.     *     *@return Variability - the variability attribute     */    Variability getVariability();     /**     * Test if the instrumentation object is a vector type.     *     * @return boolean - true if this instrumentation object is a vector type,     *                   false otherwise.     */    boolean isVector();     /**     * Return the length of the vector.     * @return int - the length of the vector or zero if this instrumentation     *               object is a scalar type.     */    int getVectorLength();     /**     * Test if the instrumentation object is supported.     */    boolean isSupported();     /**     * Return an Object that encapsulates this instrumentation object's     * current data value.     */    Object getValue();}