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.Iteration

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