org.openrdf.sesame.query.rql.model.iterators
Class StatementSubjectIterator

java.lang.Object
  org.openrdf.sesame.query.rql.model.iterators.StatementSubjectIterator

All Implemented Interfaces:

ResourceIterator, ValueIterator

public class StatementSubjectIterator

extends Object

implements ResourceIterator

A ResourceIterator that iterates over the subjects of a set of statements.

Constructor Summary

StatementSubjectIterator(StatementIterator statIter)

Method Summary

void	close() Closes the iterator and frees any resources that it uses (e.g.
boolean	hasNext() Checks whether there are any more values available.
Value	next() Gets the next value.
Resource	nextResource() Gets the next Resource.

Methods inherited from class java.lang.Object

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

Constructor Detail

StatementSubjectIterator

public StatementSubjectIterator(StatementIterator statIter)

Method Detail

hasNext

public boolean hasNext()

Description copied from interface: ValueIterator

Checks whether there are any more values available.

Specified by:

hasNext in interface ValueIterator

Returns:

true if there are more values available, false otherwise.

next

public Value next()

Description copied from interface: ValueIterator

Gets the next value.

Specified by:

next in interface ValueIterator

Returns:

the next value.

nextResource

public Resource nextResource()

Description copied from interface: ResourceIterator

Gets the next Resource.

Specified by:

nextResource in interface ResourceIterator

Returns:

the next Resource

See Also:

ValueIterator.next()

close

public void close()

Description copied from interface: ValueIterator

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

Specified by:

close in interface ValueIterator