//   Copyright 2012 Georg-August-Universität Göttingen, Germany
//
//   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 de.ugoe.cs.autoquest.tasktrees.treeifc;

import de.ugoe.cs.autoquest.eventcore.IEventTarget;
import de.ugoe.cs.autoquest.eventcore.IEventType;

/**
 * <p>
 * Event tasks represent events. They have no children and are therefore the leaf nodes of the
 * task tree. They provide information about the event they represent. This includes the event
 * type and the target.
 * </p>
 * 
 * @author Patrick Harms
 */
public interface IEventTask extends ITask {
    
    /**
     * <p>
     * return the type of the event represented by this task
     * </p>
     * 
     * @return as described
     */
    public IEventType getEventType();

    /**
     * <p>
     * return the target of the event represented by this task
     * </p>
     * 
     * @return as described
     */
    public IEventTarget getEventTarget();

    /**
     * <p>
     * returns a clone of this task, i.e. another event task being identical to this. The event
     * type and target are not cloned but reused.
     * </p>
     * 
     * @return as described
     */
    public IEventTask clone();

}