package org.simantics.modeling.ui.diagram.monitor;

import org.simantics.browsing.ui.swt.widgets.impl.ModifyComboListenerImpl;
import org.simantics.db.Resource;
import org.simantics.db.WriteGraph;
import org.simantics.db.exception.DatabaseException;
import org.simantics.operation.Layer0X;

public class TemplateModifier extends ModifyComboListenerImpl<Resource, Resource> {

	@Override
	public void applySelection(WriteGraph graph, Resource monitor, Resource template) throws DatabaseException {
		Layer0X L0X = Layer0X.getInstance(graph);
		Resource exist = graph.getPossibleObject(monitor, L0X.ObtainsProperty);
		if (template.equals(exist))
			return;
		graph.markUndoPoint();
		graph.deny(monitor, L0X.ObtainsProperty);
		graph.claim(monitor, L0X.ObtainsProperty1, null, template);
	}

}