org.jrdf.graph.mem
Class EmptyClosableIterator

java.lang.Object
  org.jrdf.graph.mem.EmptyClosableIterator

All Implemented Interfaces:

ClosableIterator, Iterator

public class EmptyClosableIterator

extends Object

implements ClosableIterator

An iterator that returns no triples.

Version:

$Revision: 1.1 $

Author:

Andrew Newman

Method Summary

boolean	close() Closes the iterator by freeing any resources that it current holds.
boolean	hasNext() Returns false.
Object	next() Never returns anything.
void	remove() Implemented for java.util.Iterator.

Methods inherited from class java.lang.Object

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

Method Detail

hasNext

public boolean hasNext()

Returns false.

Specified by:

hasNext in interface Iterator

Returns:

false.

next

public Object next()
            throws NoSuchElementException

Never returns anything. A call to this will throw NoSuchElementException.

Specified by:

next in interface Iterator

Returns:

will not return.

Throws:

NoSuchElementException - iteration has no more elements.

remove

public void remove()

Implemented for java.util.Iterator. Not supported by this implementation.

Specified by:

remove in interface Iterator

close

public boolean close()

Description copied from interface: ClosableIterator

Closes the iterator by freeing any resources that it current holds. This must be done as soon as possible. Once an iterator is closed none of the operations on a iterator will operate i.e. they will throw an exception.

Specified by:

close in interface ClosableIterator

Returns:

true if it was successfully closed.