Package org.eclipse.rdf4j.repository.sparql.federation

Class CollectionIteration<E,X extends Exception>

java.lang.Object

org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E,X>

org.eclipse.rdf4j.repository.sparql.federation.CollectionIteration<E,X>

All Implemented Interfaces:

AutoCloseable, CloseableIteration<E,X>, Iteration<E,X>

Direct Known Subclasses:

CollectionIteration

public class CollectionIteration<E,X extends Exception>
extends AbstractCloseableIteration<E,X>

An iteration to access a materialized Collection of BindingSets.

Author:

Andreas Schwarte

Field Summary

Fields

Modifier and Type	Field	Description
protected final Collection<E>	collection
protected Iterator<E>	iterator

Constructor Summary

Constructors

Constructor	Description
CollectionIteration(Collection<E> collection)

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()	Returns true if the iteration has more elements.
E	next()	Returns the next element in the iteration.
void	remove()	Removes from the underlying collection the last element returned by the iteration (optional operation).

Methods inherited from class org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration

close, handleClose, isClosed

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.common.iteration.CloseableIteration

stream

Field Details

collection

protected final Collection<E> collection

iterator

protected Iterator<E> iterator

Constructor Details

CollectionIteration

public CollectionIteration(Collection<E> collection)

Parameters:

collection -

Method Details

hasNext

public boolean hasNext()
                throws X

Description copied from interface: Iteration

Returns true if the iteration has more elements. (In other words, returns true if Iteration.next() would return an element rather than throwing a NoSuchElementException.)

Returns:

true if the iteration has more elements.

Throws:

X

next

public E next()
       throws X

Description copied from interface: Iteration

Returns the next element in the iteration.

Returns:

the next element in the iteration.

Throws:

X extends Exception

remove

public void remove()
            throws X

Description copied from interface: Iteration

Removes from the underlying collection the last element returned by the iteration (optional operation). This method can be called only once per call to next.

Throws:

X extends Exception