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ARQ is a SPARQL 1.1 query engine for Apache Jena
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.jena.sparql.function;
import java.util.List;
import org.apache.jena.atlas.lib.Lib;
import org.apache.jena.query.QueryBuildException;
import org.apache.jena.sparql.ARQInternalErrorException;
import org.apache.jena.sparql.expr.ExprEvalException;
import org.apache.jena.sparql.expr.ExprList;
import org.apache.jena.sparql.expr.NodeValue;
/**
* Support for a function of one argument.
*/
public abstract class FunctionBase5 extends FunctionBase {
@Override
public void checkBuild(String uri, ExprList args) {
if (args.size() != 5) {
throw new QueryBuildException("Function '" + Lib.className(this) + "' takes five arguments");
}
}
@Override
public final NodeValue exec(List args) {
if (args == null) // The contract on the function interface is that this should not happen.
{
throw new ARQInternalErrorException(Lib.className(this) + ": Null args list");
}
if (args.size() != 5) {
throw new ExprEvalException(Lib.className(this) + ": Wrong number of arguments: Wanted 5, got " + args.size());
}
NodeValue v1 = args.get(0);
NodeValue v2 = args.get(1);
NodeValue v3 = args.get(2);
NodeValue v4 = args.get(3);
NodeValue v5 = args.get(4);
return exec(v1, v2, v3, v4, v5);
}
public abstract NodeValue exec(NodeValue v1, NodeValue v2, NodeValue v3, NodeValue v4, NodeValue v5);
}