/*
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  See the NOTICE file distributed with this work for additional
 *  information regarding copyright ownership.
 */

package org.topbraid.jenax.functions;

import org.apache.jena.graph.Node;
import org.apache.jena.sparql.expr.NodeValue;
import org.apache.jena.sparql.function.FunctionEnv;


/**
 * An abstract superclass for functions with 0 arguments.
 * 
 * @author Holger Knublauch
 */
public abstract class AbstractFunction0 extends AbstractFunction {

	@Override
	protected NodeValue exec(Node[] nodes, FunctionEnv env) {
		return exec(env);
	}
	
	
	protected abstract NodeValue exec(FunctionEnv env);
}
