Package org.eclipse.rdf4j.common.iteration

Class IterationWrapper<E>

java.lang.Object

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

org.eclipse.rdf4j.common.iteration.IterationWrapper<E>

All Implemented Interfaces:

AutoCloseable, Iterator<E>, CloseableIteration<E>

Direct Known Subclasses:

BackgroundGraphResult, InsertBindingSetCursor, IteratingGraphQueryResult, IteratingTupleQueryResult, LimitIteration, LockingIteration, SilentIteration, TimeLimitIteration

@Deprecated(since="4.1.0")
public class IterationWrapper<E>
extends AbstractCloseableIteration<E>

Deprecated.

Abstract superclass for Iterations that wrap other Iterations. The abstract class IterationWrapper itself provides default methods that forward method calls to the wrapped Iteration. Subclasses of IterationWrapper should override some of these methods and may also provide additional methods and fields.

Field Summary

Fields

Modifier and Type	Field	Description
protected final CloseableIteration<? extends E>	wrappedIter	Deprecated. This will be changed to private, possibly with an accessor in future.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	IterationWrapper(CloseableIteration<? extends E> iter)	Deprecated. Creates a new IterationWrapper that operates on the supplied Iteration.

Method Summary

Modifier and Type	Method	Description
protected void	handleClose()	Deprecated. Closes this Iteration and also closes the wrapped Iteration if it is a CloseableIteration.
boolean	hasNext()	Deprecated. Checks whether the wrapped Iteration contains more elements, closing this Iteration when this is not the case.
E	next()	Deprecated. Returns the next element from the wrapped Iteration.
void	remove()	Deprecated. Removes the last element that has been returned from the wrapped Iteration.

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

close, 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

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Details

wrappedIter

@Deprecated(since="4.1.0")
protected final CloseableIteration<? extends E> wrappedIter

Deprecated.

This will be changed to private, possibly with an accessor in future. Do not rely on it.

The wrapped Iteration.

Constructor Details

IterationWrapper

protected IterationWrapper(CloseableIteration<? extends E> iter)

Deprecated.

Creates a new IterationWrapper that operates on the supplied Iteration.

Parameters:

iter - The wrapped Iteration for this IterationWrapper, must not be null.

Method Details

hasNext

public boolean hasNext()

Deprecated.

Checks whether the wrapped Iteration contains more elements, closing this Iteration when this is not the case.

Returns:

true if the wrapped Iteration contains more elements, false otherwise.

next

public E next()

Deprecated.

Returns the next element from the wrapped Iteration.

Throws:

NoSuchElementException - If all elements have been returned or it has been closed.

remove

public void remove()

Deprecated.

Removes the last element that has been returned from the wrapped Iteration.

Throws:

UnsupportedOperationException - If the wrapped Iteration does not support the remove operation.

IllegalStateException - if the Iteration has been closed, or if next() has not yet been called, or remove() has already been called after the last call to next().

handleClose

protected void handleClose()

Deprecated.

Closes this Iteration and also closes the wrapped Iteration if it is a CloseableIteration.

Specified by:

handleClose in class AbstractCloseableIteration<E>