//   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.treeimpl;

import de.ugoe.cs.autoquest.tasktrees.treeifc.IIteration;
import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptional;
import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask;

/**
 * <p>
 * this is the default implementation of the interface {@link IIteration}. It
 * does not do anything fancy except implementing the interface.
 * </p>
 *
 * @author Patrick Harms
 */
class Iteration extends MarkingTemporalRelationship implements IIteration {

	/**
	 * <p>
	 * default serial version UID
	 * </p>
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * <p>
	 * simple constructor providing the base class with a human readable name of
	 * the type of this task
	 * </p>
	 */
	Iteration() {
		super("iteration");
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * de.ugoe.cs.autoquest.tasktrees.treeimpl.MarkingTemporalRelationship#clone
	 * ()
	 */
	@Override
	public Iteration clone() {
		return (Iteration) super.clone();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see de.ugoe.cs.autoquest.tasktrees.treeimpl.MarkingTemporalRelationship#
	 * setMarkedTask(ITask)
	 */
	@Override
	protected void setMarkedTask(ITask markedTask) {
		if (markedTask instanceof IIteration) {
			throw new IllegalArgumentException(
					"the marked task of an iteration must not be an iteration");
		} else if (markedTask instanceof IOptional) {
			throw new IllegalArgumentException(
					"the marked task of an iteration must not be an optional");
		}

		super.setMarkedTask(markedTask);
	}

}