com.hp.hpl.jena.sparql.engine.iterator
Class QueryIterAssignVarValue

java.lang.Object
  com.hp.hpl.jena.sparql.util.PrintSerializableBase
      com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase
          com.hp.hpl.jena.sparql.engine.iterator.QueryIter
              com.hp.hpl.jena.sparql.engine.iterator.QueryIter1
                  com.hp.hpl.jena.sparql.engine.iterator.QueryIterProcessBinding
                      com.hp.hpl.jena.sparql.engine.iterator.QueryIterAssignVarValue

All Implemented Interfaces:

QueryIterator, PrintSerializable, Iterator<Binding>, Printable, Closeable

public class QueryIterAssignVarValue
extends QueryIterProcessBinding

Extend each solution by a (var, node) When used with mustBeNewVar=false, this is a join. If the input already has the variable assigned, then it must be the same (.equals) node and if it is not, the input row is rejected.

See Also:

QueryIterAssign

Field Summary

Fields inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase

traceIterators

Constructor Summary

QueryIterAssignVarValue(QueryIterator input, Var var, Node node, ExecutionContext qCxt)

QueryIterAssignVarValue(QueryIterator input, Var var, Node node, ExecutionContext qCxt, boolean mustBeNewVar)

Method Summary

Binding

accept(Binding binding)

Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIterProcessBinding

moveToNextBinding

Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIter1

output

Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIter

close, getExecContext, getIteratorNumber, makeTracked, map, materialize, materialize, output

Methods inherited from class com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase

cancel, debug, hasNext, next, nextBinding, remove

Methods inherited from class com.hp.hpl.jena.sparql.util.PrintSerializableBase

toString, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.hp.hpl.jena.sparql.util.PrintSerializable

toString

Constructor Detail

QueryIterAssignVarValue

public QueryIterAssignVarValue(QueryIterator input,
                               Var var,
                               Node node,
                               ExecutionContext qCxt)

QueryIterAssignVarValue

public QueryIterAssignVarValue(QueryIterator input,
                               Var var,
                               Node node,
                               ExecutionContext qCxt,
                               boolean mustBeNewVar)

Method Detail

accept

public Binding accept(Binding binding)

Specified by:

accept in class QueryIterProcessBinding