/*
* Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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.
*
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package com.sun.corba.se.spi.monitoring;
import com.sun.corba.se.spi.monitoring.MonitoredAttributeInfo;
import java.util.*;
/**
* <p>
*
* @author Hemanth Puttaswamy
* </p>
* <p>
* Monitored Attribute is the interface to represent a Monitorable
* Attribute. Using this interface, one can get the value of the attribute
* and set the value if it is a writeable attribute.
* </p>
*/
public interface MonitoredAttribute {
///////////////////////////////////////
// operations
/**
* <p>
* Gets the Monitored Attribute Info for the attribute.
* </p>
* <p>
*
* @param monitoredAttributeInfo for this Monitored Attribute.
* </p>
*/
public MonitoredAttributeInfo getAttributeInfo();
/**
* <p>
* Sets the value for the Monitored Attribute if isWritable() is false, the
* method will throw ILLEGAL Operation exception.
*
* Also, the type of 'value' should be same as specified in the
* MonitoredAttributeInfo for a particular instance.
* </p>
* <p>
*
* @param value should be any one of the Basic Java Type Objects which are
* Long, Double, Float, String, Integer, Short, Character, Byte.
* </p>
*/
public void setValue(Object value);
/**
* <p>
* Gets the value of the Monitored Attribute. The value can be obtained
* from different parts of the module. User may choose to delegate the call
* to getValue() to other variables.
*
* NOTE: It is important to make sure that the type of Object returned in
* getvalue is same as the one specified in MonitoredAttributeInfo for this
* attribute.
* </p>
* <p>
*
* </p>
* <p>
*
* @param value is the current value for this MonitoredAttribute
* </p>
*/
public Object getValue();
/**
* <p>
* Gets the name of the Monitored Attribute.
* </p>
* <p>
*
* @param name of this Attribute
* </p>
*/
public String getName();
/**
* <p>
* If this attribute needs to be cleared, the user needs to implement this
* method to reset the state to initial state. If the Monitored Attribute
* doesn't change like for example (ConnectionManager High Water Mark),
* then clearState() is a No Op.
* </p>
*
*/
public void clearState();
} // end MonitoredAttribute