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

Class QueryIterSort

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.QueryIterPlainWrapper

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

All Implemented Interfaces:

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

public class QueryIterSort
extends QueryIterPlainWrapper

Sort a query iterator. The sort will happen in-memory unless the size of the iterator exceeds a configurable threshold. In that case, a disk sort is used.

See Also:

SortedDataBag

Field Summary

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

traceIterators

Constructor Summary

Constructors

Constructor and Description
QueryIterSort(QueryIterator qIter, Comparator<Binding> comparator, ExecutionContext context)
QueryIterSort(QueryIterator qIter, List<SortCondition> conditions, ExecutionContext context)

Method Summary

Methods

Modifier and Type	Method and Description
void	requestCancel() Propagates the cancellation request - called asynchronously with the iterator itself

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

output, setIterator

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

close, getExecContext, getIteratorNumber, makeTracked, 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

QueryIterSort

public QueryIterSort(QueryIterator qIter,
             List<SortCondition> conditions,
             ExecutionContext context)

QueryIterSort

public QueryIterSort(QueryIterator qIter,
             Comparator<Binding> comparator,
             ExecutionContext context)

Method Detail

requestCancel

public void requestCancel()

Description copied from class: QueryIteratorBase

Propagates the cancellation request - called asynchronously with the iterator itself