1 /* 2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package com.sun.corba.se.spi.monitoring; 26 27 import com.sun.corba.se.spi.monitoring.MonitoredAttributeInfo; 28 import java.util.*; 29 30 /** 31 * <p> 32 * 33 * @author Hemanth Puttaswamy 34 * </p> 35 * <p> 36 * Monitored Attribute is the interface to represent a Monitorable 37 * Attribute. Using this interface, one can get the value of the attribute 38 * and set the value if it is a writeable attribute. 39 * </p> 40 */ 41 public interface MonitoredAttribute { 42 43 /////////////////////////////////////// 44 // operations 45 46 /** 47 * <p> 48 * Gets the Monitored Attribute Info for the attribute. 49 * </p> 50 * <p> 51 * 52 * @param monitoredAttributeInfo for this Monitored Attribute. 53 * </p> 54 */ 55 public MonitoredAttributeInfo getAttributeInfo(); 56 /** 57 * <p> 58 * Sets the value for the Monitored Attribute if isWritable() is false, the 59 * method will throw ILLEGAL Operation exception. 60 * 61 * Also, the type of 'value' should be same as specified in the 62 * MonitoredAttributeInfo for a particular instance. 63 * </p> 64 * <p> 65 * 66 * @param value should be any one of the Basic Java Type Objects which are 67 * Long, Double, Float, String, Integer, Short, Character, Byte. 68 * </p> 69 */ 70 public void setValue(Object value); 71 72 73 /** 74 * <p> 75 * Gets the value of the Monitored Attribute. The value can be obtained 76 * from different parts of the module. User may choose to delegate the call 77 * to getValue() to other variables. 78 * 79 * NOTE: It is important to make sure that the type of Object returned in 80 * getvalue is same as the one specified in MonitoredAttributeInfo for this 81 * attribute. 82 * </p> 83 * <p> 84 * 85 * </p> 86 * <p> 87 * 88 * @param value is the current value for this MonitoredAttribute 89 * </p> 90 */ 91 public Object getValue(); 92 /** 93 * <p> 94 * Gets the name of the Monitored Attribute. 95 * </p> 96 * <p> 97 * 98 * @param name of this Attribute 99 * </p> 100 */ 101 public String getName(); 102 /** 103 * <p> 104 * If this attribute needs to be cleared, the user needs to implement this 105 * method to reset the state to initial state. If the Monitored Attribute 106 * doesn't change like for example (ConnectionManager High Water Mark), 107 * then clearState() is a No Op. 108 * </p> 109 * 110 */ 111 public void clearState(); 112 113 } // end MonitoredAttribute