it.uniroma2.art.owlart.models.impl
Class ObjectsOfStatementsIterator

java.lang.Object
  it.uniroma2.art.owlart.models.impl.ObjectsOfStatementsIterator

All Implemented Interfaces:

ARTNodeIterator, RDFIterator<ARTNode>, java.util.Iterator<ARTNode>

public class ObjectsOfStatementsIterator
extends java.lang.Object
implements ARTNodeIterator

an wrapping iterator class which extracts objects from statement iterators

Author:

Armando Stellato

Constructor Summary

ObjectsOfStatementsIterator(ARTStatementIterator statIt)

Method Summary

void	close() closes the iterator and release resources
ARTNode	getNext() gets the next element of the iterator, and advances over the data stream (roughly equivalent to traditional next() iterator method)
boolean	hasNext()
ARTNode	next()
void	remove()
boolean	streamOpen() tells if the data stream associated to this iterator is not empty (roughly equivalent to traditional hasNext() iterator method)

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectsOfStatementsIterator

public ObjectsOfStatementsIterator(ARTStatementIterator statIt)

Method Detail

close

public void close()
           throws ModelAccessException

Description copied from interface: RDFIterator

closes the iterator and release resources

Specified by:

close in interface RDFIterator<ARTNode>

Throws:

ModelAccessException

streamOpen

public boolean streamOpen()
                   throws ModelAccessException

Description copied from interface: RDFIterator

tells if the data stream associated to this iterator is not empty (roughly equivalent to traditional hasNext() iterator method)

Specified by:

streamOpen in interface RDFIterator<ARTNode>

Returns:

Throws:

ModelAccessException

getNext

public ARTNode getNext()
                throws ModelAccessException

Description copied from interface: RDFIterator

gets the next element of the iterator, and advances over the data stream (roughly equivalent to traditional next() iterator method)

Specified by:

getNext in interface RDFIterator<ARTNode>

Returns:

Throws:

ModelAccessException

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<ARTNode>

next

public ARTNode next()

Specified by:

next in interface java.util.Iterator<ARTNode>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<ARTNode>