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ServletContextAttributeEvent.java
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ServletContextAttributeEvent.java
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/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates and others.
* All rights reserved.
* Copyright 2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jakarta.servlet;
/**
* Event class for notifications about changes to the attributes of the ServletContext of a web application.
*
* @see ServletContextAttributeListener
*
* @since Servlet 2.3
*/
public class ServletContextAttributeEvent extends ServletContextEvent {
private static final long serialVersionUID = -5804680734245618303L;
private final String name;
private final Object value;
/**
* Constructs a ServletContextAttributeEvent from the given ServletContext, attribute name, and attribute value.
*
* @param source the ServletContext whose attribute changed
* @param name the name of the ServletContext attribute that changed
* @param value the value of the ServletContext attribute that changed
*/
public ServletContextAttributeEvent(ServletContext source, String name, Object value) {
super(source);
this.name = name;
this.value = value;
}
/**
* Gets the name of the ServletContext attribute that changed.
*
* @return the name of the ServletContext attribute that changed
*/
public String getName() {
return this.name;
}
/**
* Gets the value of the ServletContext attribute that changed.
*
* <p>
* If the attribute was added, this is the value of the attribute. If the attribute was removed, this is the value of
* the removed attribute. If the attribute was replaced, this is the old value of the attribute.
*
* @return the value of the ServletContext attribute that changed
*/
public Object getValue() {
return this.value;
}
}