package org.simantics.diagram.symbolcontribution;

import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.exception.DatabaseException;
import org.simantics.diagram.symbolcontribution.SymbolContributionFilter;

/**
 * @author Tuukka Lehtonen
 */
public enum DenyFilter implements SymbolContributionFilter {

	INSTANCE;

	public static DenyFilter get() {
		return INSTANCE;
	}

	@Override
	public boolean accept(ReadGraph graph, Resource contribution, Resource filter, Resource diagram) throws DatabaseException {
		return false;
	}

}