How to use

isomorphic

method

in

org.apache.jena.sparql.resultset.ResultSetCompare

  private static void areIsomorphic(ResultSet x, ResultSet y)
  {
    ResultSetRewindable rs1 = ResultSetFactory.makeRewindable(x) ;
    ResultSetRewindable rs2 = ResultSetFactory.makeRewindable(y) ;
//        System.out.println(ResultSetFormatter.asText(rs1));
//        System.out.println();
//        System.out.println(ResultSetFormatter.asText(rs2));
//        rs1.reset();
//        rs2.reset();
    Assert.assertTrue(ResultSetCompare.isomorphic(rs1, rs2)) ;
  }

/** Compare two result sets for equivalence.  Equivalence means:
 * A row rs1 has one matching row in rs2, and vice versa.
 * A row is only matched once.
 * Rows match if they have the same variables with the same values. 
 * bNodes must map to a consistent other bNodes.  Value comparisons of nodes.   
 * 
 * Destructive - rs1 and rs2 are both read, possibly to exhaustion. 
 * @param rs1 
 * @param rs2
 * @return true if they are equivalent
 */

public static boolean equalsByValue(ResultSet rs1, ResultSet rs2) {
  if ( ! compareHeader(rs1, rs2) ) return false ;
  
  //return equivalent(convert(rs1), convert(rs2), new BNodeIso(NodeUtils.sameValue)) ;
  
  ResultSetRewindable rs1a = ResultSetFactory.makeRewindable(rs1) ;
  ResultSetRewindable rs2a = ResultSetFactory.makeRewindable(rs2) ;
  
  if ( equivalent(convert(rs1a), convert(rs2a), new BNodeIso(NodeUtils.sameValue)) )
    return true ;
  rs1a.reset() ;    
  rs2a.reset() ;
  return isomorphic(rs1a, rs2a) ;
}

/** compare two result sets for equivalence.  Equivalence means:
 * A row rs1 has one matching row in rs2, and vice versa.
 * A row is only matched once.
 * Rows match if they have the same variables with the same values, 
 * bNodes must map to a consistent other bNodes.  
 * Term comparisons of nodes.   
 * 
 * Destructive - rs1 and rs2 are both read, possibly to exhaustion. 
 * @param rs1 
 * @param rs2
 * @return true if they are equivalent
 */
public static boolean equalsByTerm(ResultSet rs1, ResultSet rs2) {
  if ( ! compareHeader(rs1, rs2) ) return false ;
  //return equivalent(convert(rs1), convert(rs2), new BNodeIso(NodeUtils.sameTerm)) ;
  ResultSetRewindable rs1a = ResultSetFactory.makeRewindable(rs1) ;
  ResultSetRewindable rs2a = ResultSetFactory.makeRewindable(rs2) ;
  
  // Aligned rows
  if ( equivalent(convert(rs1a), convert(rs2a), new BNodeIso(NodeUtils.sameTerm)) )
    return true ;
  rs1a.reset() ;    
  rs2a.reset() ;
  return isomorphic(rs1a, rs2a) ;
}

private void isotest(String[] rs1$2, String[] rs2$2)
{
  ResultSetRewindable rs1 = ResultSetFactory.makeRewindable(BuilderResultSet.build(SSE.parseItem(StrUtils.strjoinNL(rs1$)))) ;
  ResultSetRewindable rs2 = ResultSetFactory.makeRewindable(BuilderResultSet.build(SSE.parseItem(StrUtils.strjoinNL(rs2$)))) ;
  assertTrue(ResultSetCompare.isomorphic(rs1, rs2)) ;
  rs1.reset() ;
  rs2.reset() ;   
  assertTrue(ResultSetCompare.equalsByTerm(rs1, rs2)) ;
  assertTrue(ResultSetCompare.equalsByValue(rs1, rs2)) ;
}

  Assert.assertTrue(ResultSetCompare.isomorphic(rs, rsOpt));
} finally {

  iterOpt.close();
  Assert.assertTrue(ResultSetCompare.isomorphic(rs, rsOpt));
} finally {