source: branches/autoquest-core-tasktrees-alignment/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeimpl/MarkingTemporalRelationship.java @ 1733

//   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.IMarkingTemporalRelationship;
import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask;

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

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

        /**
         * <p>
         * the task marked through this marking temporal relationship
         * </p>
         */
        private ITask markedTask;

        /**
         * <p>
         * initializes this temporal relationship with a human readable name
         * </p>
         *
         * @param relationshipType
         *            the human readable name of this temporal relationship
         */
        MarkingTemporalRelationship(String relationshipType) {
                super(relationshipType);

                if ((relationshipType == null) || ("".equals(relationshipType))) {
                        throw new IllegalArgumentException(
                                        "the relationship type must be something meaningful");
                }
        }

        /*
         * (non-Javadoc)
         * 
         * @see de.ugoe.cs.autoquest.tasktrees.treeimpl.Task#clone()
         */
        @Override
        public synchronized MarkingTemporalRelationship clone() {
                MarkingTemporalRelationship clone = null;
                clone = (MarkingTemporalRelationship) super.clone();

                if (markedTask != null) {
                        clone.markedTask = markedTask.clone();
                }

                return clone;
        }

        /*
         * (non-Javadoc)
         * 
         * @see de.ugoe.cs.autoquest.tasktrees.treeifc.IMarkingTemporalRelationship#
         * getMarkedTask()
         */
        @Override
        public ITask getMarkedTask() {
                return markedTask;
        }

        /**
         * <p>
         * used to set the marked task
         * </p>
         * 
         * @param markedTask
         *            the marked task to set
         */
        protected void setMarkedTask(ITask markedTask) {
                this.markedTask = markedTask;

                super.setDescription(markedTask.toString());
        }

}