org.cristalise.gui.lifecycle.desc.WfEdgeDefFactory Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of cristalise-gui Show documentation

CRISTAL-iSE default/administration GUI

There is a newer version: 6.0.0

/**
 * This file is part of the CRISTAL-iSE default user interface.
 * Copyright (c) 2001-2016 The CRISTAL Consortium. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 3 of the License, or (at
 * your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 * http://www.fsf.org/licensing/licenses/lgpl.html
 */
package org.cristalise.gui.lifecycle.desc;
import org.cristalise.kernel.graph.model.DirectedEdge;
import org.cristalise.kernel.graph.model.EdgeFactory;
import org.cristalise.kernel.graph.model.GraphModelManager;
import org.cristalise.kernel.graph.model.TypeNameAndConstructionInfo;
import org.cristalise.kernel.graph.model.Vertex;
import org.cristalise.kernel.lifecycle.NextDef;
import org.cristalise.kernel.lifecycle.WfVertexDef;
public class WfEdgeDefFactory implements EdgeFactory
{
	@Override
	public void create(
		GraphModelManager graphModelManager,
		Vertex origin,
		Vertex terminus,
		TypeNameAndConstructionInfo typeNameAndConstructionInfo)
	{
		if (validCreation(graphModelManager, origin, terminus))
				{
					NextDef nextDef = new NextDef((WfVertexDef) origin, (WfVertexDef) terminus);
					graphModelManager.getModel().addEdgeAndCreateId(nextDef, origin, terminus);
				}
	}
	private static boolean validCreation(GraphModelManager graphModelManager, Vertex origin, Vertex terminus)
	{
		DirectedEdge[] connectingEdgesAToB = graphModelManager.getModel().getConnectingEdges(origin.getID(), terminus.getID());
		DirectedEdge[] connectingEdgesBToA = graphModelManager.getModel().getConnectingEdges(terminus.getID(), origin.getID());
		return (origin != terminus) && (connectingEdgesAToB.length == 0) && (connectingEdgesBToA.length == 0);
	}
}