/*
* 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 com.hp.hpl.jena.sparql.syntax;
import java.util.ArrayList ;
import java.util.Iterator ;
import java.util.List ;
import com.hp.hpl.jena.sparql.ARQException ;
import com.hp.hpl.jena.sparql.algebra.Table ;
import com.hp.hpl.jena.sparql.algebra.table.TableData ;
import com.hp.hpl.jena.sparql.core.Var ;
import com.hp.hpl.jena.sparql.engine.binding.Binding ;
import com.hp.hpl.jena.sparql.resultset.ResultSetCompare ;
import com.hp.hpl.jena.sparql.util.NodeIsomorphismMap ;
import com.hp.hpl.jena.sparql.util.NodeUtils ;
public class ElementData extends Element
{
private List<Var> vars = new ArrayList<>() ;
private List<Binding> rows = new ArrayList<>() ;
public ElementData()
{
}
public Table getTable()
{
return new TableData(vars, rows) ;
}
public List<Var> getVars() { return vars ; }
public List<Binding> getRows() { return rows ; }
public void add(Var var)
{
if ( ! vars.contains(var) )
vars.add(var) ;
}
public void add(Binding binding)
{
Iterator<Var> iter = binding.vars() ;
while(iter.hasNext())
{
Var v = iter.next() ;
if ( ! vars.contains(v) )
throw new ARQException("Variable "+v+" not already declared for ElementData") ;
}
rows.add(binding) ;
}
@Override
public boolean equalTo(Element el2, NodeIsomorphismMap isoMap)
{
if ( ! ( el2 instanceof ElementData ) )
return false ;
ElementData f2 = (ElementData)el2 ;
if ( ! vars.equals(f2.vars) )
return false ;
if ( ! ResultSetCompare.equalsByTest(rows, f2.rows, new ResultSetCompare.BNodeIso(NodeUtils.sameTerm)) )
return false ;
return true ;
}
@Override
public int hashCode()
{
return vars.hashCode()^rows.hashCode() ;
}
@Override
public void visit(ElementVisitor v)
{
v.visit(this) ;
}
}