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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.expr;
import org.apache.jena.sparql.ARQNotImplemented ;
public class E_Cast extends ExprFunction2
{
// See E_StrDatatype
private static final String symbol = "cast" ;
private E_Cast(Expr expr1, Expr expr2)
{
super(expr1, expr2, symbol) ;
}
@Override
public NodeValue eval(NodeValue x, NodeValue y)
{
if ( ! x.isString() ) throw new ExprEvalException("cast: arg 2 is not a string: "+x) ;
if ( ! y.isIRI() ) throw new ExprEvalException("cast: arg 2 is not a URI: "+y) ;
String lex = x.getString() ;
y.asNode().getURI() ;
throw new ARQNotImplemented() ;
}
@Override
public Expr copy(Expr arg1, Expr arg2)
{ return new E_Cast(arg1, arg2) ; }
}