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/*
* 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 org.apache.catalina;
import java.util.EventObject;
/**
* General event for notifying listeners of significant changes on a component
* that implements the Lifecycle interface. In particular, this will be useful
* on Containers, where these events replace the ContextInterceptor concept in
* Tomcat 3.x.
*
* @author Craig R. McClanahan
*
*/
public final class LifecycleEvent
extends EventObject {
// ----------------------------------------------------------- Constructors
/**
* Construct a new LifecycleEvent with the specified parameters.
*
* @param lifecycle Component on which this event occurred
* @param type Event type (required)
*/
public LifecycleEvent(Lifecycle lifecycle, String type) {
this(lifecycle, type, null);
}
/**
* Construct a new LifecycleEvent with the specified parameters.
*
* @param lifecycle Component on which this event occurred
* @param type Event type (required)
* @param data Event data (if any)
*/
public LifecycleEvent(Lifecycle lifecycle, String type, Object data) {
super(lifecycle);
this.lifecycle = lifecycle;
this.type = type;
this.data = data;
}
// ----------------------------------------------------- Instance Variables
/**
* The event data associated with this event.
*/
private Object data = null;
/**
* The Lifecycle on which this event occurred.
*/
private Lifecycle lifecycle = null;
/**
* The event type this instance represents.
*/
private String type = null;
// ------------------------------------------------------------- Properties
/**
* Return the event data of this event.
*/
public Object getData() {
return (this.data);
}
/**
* Return the Lifecycle on which this event occurred.
*/
public Lifecycle getLifecycle() {
return (this.lifecycle);
}
/**
* Return the event type of this event.
*/
public String getType() {
return (this.type);
}
}
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