Module org.apache.jena.core

Package org.apache.jena.reasoner.rulesys.impl

Class SafeTripleIterator

java.lang.Object

org.apache.jena.reasoner.rulesys.impl.SafeTripleIterator

All Implemented Interfaces:

Iterator<Triple>, org.apache.jena.atlas.iterator.IteratorCloseable<Triple>, org.apache.jena.atlas.lib.Closeable, ClosableIterator<Triple>

public class SafeTripleIterator
extends Object
implements ClosableIterator<Triple>

Wrapper around triple searches using in the back chainer to attempt a restart in the case of a failure such as cross-transaction query.

Constructor Summary

Constructors

Constructor	Description
SafeTripleIterator(LPInterpreter interpreter, TriplePattern goal)

Method Summary

Modifier and Type	Method	Description
void	close()	Close the iterator.
boolean	hasNext()
Triple	next()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Details

SafeTripleIterator

public SafeTripleIterator(LPInterpreter interpreter,
 TriplePattern goal)

Method Details

close

public void close()

Description copied from interface: ClosableIterator

Close the iterator. Other operations on this iterator may now throw an exception. A ClosableIterator may be closed as many times as desired - the subsequent calls do nothing.

Specified by:

close in interface ClosableIterator<Triple>

Specified by:

close in interface org.apache.jena.atlas.lib.Closeable

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Triple>

next

public Triple next()

Specified by:

next in interface Iterator<Triple>