package org.simantics.db.layer0.variable;

import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.common.request.ResourceRead;
import org.simantics.db.exception.DatabaseException;
import org.simantics.layer0.Layer0;

public class ChildVariableMapRequest extends ResourceRead<VariableMap> {

	public ChildVariableMapRequest(Resource context) {
		super(context);
	}

	@Override
	public VariableMap perform(ReadGraph graph) throws DatabaseException {
		return graph.getPossibleRelatedValue2(resource, Layer0.getInstance(graph).domainChildren, resource);
//		Resource value = parameter.getPossibleRepresents(graph);
//		if(value != null) {
//			VariableMap valueMap = graph.getPossibleRelatedValue2(value, Layer0.getInstance(graph).domainProperties, this);
//			if(valueMap != null) return valueMap;
//		}
//		Resource predicate = parameter.getPossiblePredicateResource(graph);
//		if(predicate != null)
//			return graph.getPossibleRelatedValue2(predicate, Layer0.getInstance(graph).domainProperties, this);
//		return null;
	}

}