001/* StringValueExp.java -- Represents strings to be passed to queries. 002 Copyright (C) 2007 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038package javax.management; 039 040/** 041 * Represents a string being used as an argument 042 * to a relational constraint. 043 * 044 * @author Andrew John Hughes (gnu_andrew@member.fsf.org) 045 * @since 1.5 046 */ 047public class StringValueExp 048 implements ValueExp 049{ 050 051 /** 052 * Compatible with JDK 1.5 053 */ 054 private static final long serialVersionUID = -3256390509806284044L; 055 056 /** 057 * The string value. 058 */ 059 private String val; 060 061 /** 062 * Constructs a new {@link StringValueExp}. 063 */ 064 public StringValueExp() 065 { 066 } 067 068 /** 069 * Constructs a new {@link StringValueExp} using the 070 * specified value. 071 * 072 * @param val the string value used for this expression. 073 */ 074 public StringValueExp(String val) 075 { 076 this.val = val; 077 } 078 079 /** 080 * Applies the {@link StringValueExp} to the specified 081 * management bean by simply returning the value. 082 * 083 * @param name the {@link ObjectName} of the bean. 084 * @return the {@link StringValueExp} itself. 085 * @throws BadStringOperationException if an invalid string 086 * operation is used by 087 * the value expression. 088 * @throws BadBinaryOpValueExpException if an invalid expression 089 * is used by the value expression. 090 * @throws BadAttributeValueExpException if an invalid attribute 091 * is used by the value expression. 092 * @throws InvalidApplicationException if the value expression is applied 093 * to the wrong type of bean. 094 */ 095 public ValueExp apply(ObjectName name) 096 throws BadStringOperationException, BadBinaryOpValueExpException, 097 BadAttributeValueExpException, InvalidApplicationException 098 { 099 return this; 100 } 101 102 /** 103 * Returns the value. 104 * 105 * @return the value. 106 */ 107 public String getValue() 108 { 109 return val; 110 } 111 112 /** 113 * Sets the {@link MBeanServer} on which the query 114 * will be performed. 115 * 116 * @param server the new server. 117 */ 118 public void setMBeanServer(MBeanServer server) 119 { 120 /* This seems to do nothing any more */ 121 } 122 123 /** 124 * Returns the value in quotes. 125 * 126 * @return the value (quoted). 127 */ 128 public String toString() 129 { 130 return "'" + val + "'"; 131 } 132 133}