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/**
* This file is part of the CRISTAL-iSE kernel.
* Copyright (c) 2001-2014 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.kernel.lifecycle;
import org.cristalise.kernel.graph.model.Vertex;
import org.cristalise.kernel.graph.traversal.GraphTraversal;
import org.cristalise.kernel.lifecycle.instance.Loop;
import org.cristalise.kernel.lifecycle.instance.WfVertex;
/**
* @version $Revision: 1.19 $ $Date: 2005/09/29 10:18:31 $
* @author $Author: abranson $
*/
public class LoopDef extends XOrSplitDef
{
public boolean hasLoop = false;
public int isNext = 0;
/**
* @see java.lang.Object#Object()
*/
public LoopDef()
{
super();
}
/**
* @see org.cristalise.kernel.lifecycle.WfVertexDef#loop()
*/
@Override
public boolean loop()
{
return true;
}
/**
* @see org.cristalise.kernel.lifecycle.WfVertexDef#verify()
*/
@Override
public boolean verify()
{
if (!super.verify()) return false;
Vertex[] nexts = getOutGraphables();
Vertex[] anteVertices =
GraphTraversal.getTraversal(this.getParent().getChildrenGraphModel(), this, GraphTraversal.kUp, false);
int k = 0;
int l = 0;
Vertex[] brothers = getParent().getChildren();
for (Vertex brother : brothers)
if (brother instanceof LoopDef) l++;
for (Vertex next : nexts)
for (Vertex anteVertice : anteVertices)
if (next.equals(anteVertice))
k++;
if (k != 1 && !(l>1))
{
mErrors.add("bad number of pointing back nexts");
return false;
}
// if (nexts.length>2) {
// mErrors.add("you must only have 2 nexts");
// return false;
// }
return true;
}
@Override
public boolean isLoop() {
return true;
}
@Override
public WfVertex instantiate() {
Loop newLoop = new Loop();
configureInstance(newLoop);
return newLoop;
}
}
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