InstanceOfQueryExp.java revision 2362
2362N/A * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * This class is used by the query building mechanism for isInstanceOf expressions. 0N/A /* Serial version */ 0N/A * @serial The {@link StringValueExp} returning the name of the class 0N/A * of which selected MBeans should be instances. 0N/A * Creates a new InstanceOfExp with a specific class name. 0N/A * @param classNameValue The {@link StringValueExp} returning the name of 0N/A * the class of which selected MBeans should be instances. 0N/A // We are using StringValueExp here to be consistent with other queries, 0N/A // although we should actually either use a simple string (the classname) 0N/A // or a ValueExp - which would allow more complex queries - like for 0N/A // instance evaluating the class name from an AttributeValueExp. 0N/A // As it stands - using StringValueExp instead of a simple constant string 0N/A // doesn't serve any useful purpose besides offering a consistent 0N/A * Returns the class name. 0N/A * @returns The {@link StringValueExp} returning the name of 0N/A * the class of which selected MBeans should be instances. 0N/A * Applies the InstanceOf on a MBean. 0N/A * @param name The name of the MBean on which the InstanceOf will be applied. 0N/A * @return True if the MBean specified by the name is instance of the class. 0N/A * @exception BadAttributeValueExpException 0N/A * @exception InvalidApplicationException 0N/A * @exception BadStringOperationException 0N/A * @exception BadBinaryOpValueExpException 0N/A // Get the class name value 0N/A // Should not happen - unless someone wrongly implemented 0N/A // StringValueExp.apply(). 0N/A // Test whether the MBean is an instance of that class. 0N/A * Returns a string representation of this InstanceOfQueryExp. 0N/A * @return a string representation of this InstanceOfQueryExp.