package org.simantics.district.network.techtype.requests;

import org.simantics.databoard.Bindings;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.common.procedure.adapter.TransientCacheListener;
import org.simantics.db.common.request.ResourceRead2;
import org.simantics.db.exception.DatabaseException;
import org.simantics.district.network.ontology.DistrictNetworkResource;

public class PossibleTechTypeTableData extends ResourceRead2<String> {
	public PossibleTechTypeTableData(Resource model, Resource componentType) {
		super(model, componentType);
	}

	@Override
	public String perform(ReadGraph graph) throws DatabaseException {
		DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);

		Resource ttt = graph.syncRequest(new PossibleTechTypeTable(resource, resource2), TransientCacheListener.instance());
		return ttt != null ? graph.getPossibleRelatedValue2(ttt, DN.TechType_TechTypeTable_HasData, Bindings.STRING) : null;
	}
}