/*
* 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.syntax;
import org.apache.jena.sparql.expr.Expr ;
import org.apache.jena.sparql.util.NodeIsomorphismMap ;
/** A constraint (Filter) in a query expression. */
public class ElementFilter extends Element
{
Expr expr = null ;
public ElementFilter(Expr expr) { this.expr = expr ; }
public Expr getExpr() { return expr ; }
@Override
public void visit(ElementVisitor v) { v.visit(this) ; }
@Override
public int hashCode() { return expr.hashCode() ; }
@Override
public boolean equalTo(Element el2, NodeIsomorphismMap isoMap)
{
if ( el2 == null ) return false ;
if ( ! ( el2 instanceof ElementFilter ) )
return false ;
ElementFilter f2 = (ElementFilter)el2 ;
if ( ! this.getExpr().equalsBySyntax(f2.getExpr()) )
return false ;
return true ;
}
}