org.openrdf.sesame.sail.util
Class EmptyStatementIterator

java.lang.Object
  org.openrdf.sesame.sail.util.EmptyStatementIterator

All Implemented Interfaces:

StatementIterator

public class EmptyStatementIterator

extends Object

implements StatementIterator

A StatementIterator that contains exactly zero statements.

Version:

$Revision: 1.4.4.2 $

Constructor Summary

EmptyStatementIterator()
Creates an EmptyStatementIterator.

Method Summary

void	close() Closes the iterator and frees any resources that it uses (e.g.
Value	getObject() Deprecated. Replaced by Statement.getObject().
Resource	getPredicate() Deprecated. Replaced by Statement.getPredicate().
Resource	getSubject() Deprecated. Replaced by Statement.getSubject().
boolean	hasNext() Always return false;
Statement	next() Always throws a NoSuchElementException as there are no results in an EmptyStatementIterator.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyStatementIterator

public EmptyStatementIterator()

Creates an EmptyStatementIterator.

Method Detail

hasNext

public boolean hasNext()

Always return false;

Specified by:

hasNext in interface StatementIterator

Returns:

true if there are more statements available, false otherwise.

next

public Statement next()

Always throws a NoSuchElementException as there are no results in an EmptyStatementIterator.

Specified by:

next in interface StatementIterator

Returns:

the next statement.

Throws:

NoSuchElementException - Is always thrown.

getSubject

public Resource getSubject()

Deprecated. Replaced by Statement.getSubject().

Always returns null.

getPredicate

public Resource getPredicate()

Deprecated. Replaced by Statement.getPredicate().

Always returns null.

getObject

public Value getObject()

Deprecated. Replaced by Statement.getObject().

Always returns null.

close

public void close()

Description copied from interface: StatementIterator

Closes the iterator and frees any resources that it uses (e.g. connections to databases). Every StatementIterator should be properly closed when it has returned all of its statements, or when it is no longer needed.

Specified by:

close in interface StatementIterator