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

Class QueryIterProcessBinding

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

All Implemented Interfaces:

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

Direct Known Subclasses:

QueryIterAssign, QueryIterAssignVarValue, QueryIterFilterExpr

public abstract class QueryIterProcessBinding
extends QueryIter1

An iterator that applies a condition. The condition may return a different binding.

Field Summary

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

traceIterators

Constructor Summary

Constructors

Constructor and Description
QueryIterProcessBinding(QueryIterator qIter, ExecutionContext context)

Method Summary

Methods

Modifier and Type	Method and Description
abstract Binding	accept(Binding binding) Process the binding - return null for "not accept".
Binding	moveToNextBinding() The next acceptable object in the iterator.

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

QueryIterProcessBinding

public QueryIterProcessBinding(QueryIterator qIter,
                       ExecutionContext context)

Method Detail

accept

public abstract Binding accept(Binding binding)

Process the binding - return null for "not accept". Subclasses may return a different Binding to the argument and the result is the returned Binding.

moveToNextBinding

public Binding moveToNextBinding()

The next acceptable object in the iterator.

Returns:

The next acceptable object.