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The Drools and jBPM public API which is backwards compatible between releases.

There is a newer version: 6.5.0.Final

/*
 * Copyright 2005 JBoss Inc
 *
 * 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 org.drools.event.process;

import org.drools.event.KnowledgeRuntimeEvent;
import org.drools.runtime.process.ProcessInstance;

/**
 * A runtime event related to the execution of process instances.
 */
public interface ProcessEvent
    extends
    KnowledgeRuntimeEvent {

	/**
	 * The ProcessInstance this event relates to.
	 * 
	 * @return the process instance
	 */
    ProcessInstance getProcessInstance();

}