/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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;
import java.io.Serial;
/**
* This is the event class for notifications about changes to the attributes of the servlet context of a web
* application.
*
* @see ServletContextAttributeListener
*
* @since Servlet 2.3
*/
public class ServletContextAttributeEvent extends ServletContextEvent {
@Serial
private static final long serialVersionUID = 1L;
/**
* Attribute name.
*/
private final String name;
/**
* Attribute value.
*/
private final Object value;
/**
* Construct a ServletContextAttributeEvent from the given context for the given attribute name and attribute value.
*
* @param source The ServletContext associated with this attribute event
* @param name The name of the servlet context attribute
* @param value The value of the servlet context attribute
*/
public ServletContextAttributeEvent(ServletContext source, String name, Object value) {
super(source);
this.name = name;
this.value = value;
}
/**
* Return the name of the attribute that changed on the ServletContext.
*
* @return The name of the attribute that changed
*/
public String getName() {
return this.name;
}
/**
* Returns the value of the attribute that has been added, removed, or replaced.
*
* @return 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.
*/
public Object getValue() {
return this.value;
}
}