Package org.eclipse.rdf4j.common.iteration

Class FilterIteration<E,X extends Exception>

java.lang.Object

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

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

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

All Implemented Interfaces:

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

Direct Known Subclasses:

CompatibleBindingSetFilter, DistinctIteration, FilteringIteration, FilterIterator, IntersectIteration, MinusIteration, OffsetIteration, ReducedIteration, SPARQLMinusIteration

@Deprecated(since="4.1.0")
public abstract class FilterIteration<E,X extends Exception>
extends IterationWrapper<E,X>

Deprecated.

A CloseableIteration that wraps another Iteration, applying a filter on the objects that are returned. Subclasses must implement the accept method to indicate which objects should be returned.

Field Summary

Fields inherited from class org.eclipse.rdf4j.common.iteration.IterationWrapper

wrappedIter

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FilterIteration(Iteration<? extends E,? extends X> iter)	Deprecated.

Method Summary

Modifier and Type	Method	Description
protected abstract boolean	accept(E object)	Deprecated. Tests whether or not the specified object should be returned by this Iteration.
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.

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

remove

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

Constructor Detail

FilterIteration

protected FilterIteration(Iteration<? extends E,? extends X> iter)

Deprecated.

Parameters:

iter -

Method Detail

hasNext

public boolean hasNext()
                throws X extends Exception

Deprecated.

Description copied from class: IterationWrapper

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

Specified by:

hasNext in interface Iteration<E,X extends Exception>

Overrides:

hasNext in class IterationWrapper<E,X extends Exception>

Returns:

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

Throws:

X

X extends Exception

next

public E next()
       throws X extends Exception

Deprecated.

Description copied from class: IterationWrapper

Returns the next element from the wrapped Iteration.

Specified by:

next in interface Iteration<E,X extends Exception>

Overrides:

next in class IterationWrapper<E,X extends Exception>

Returns:

the next element in the iteration.

Throws:

X extends Exception

accept

protected abstract boolean accept(E object)
                           throws X extends Exception

Deprecated.

Tests whether or not the specified object should be returned by this Iteration. All objects from the wrapped Iteration pass through this method in the same order as they are coming from the wrapped Iteration.

Parameters:

object - The object to be tested.

Returns:

true if the object should be returned, false otherwise.

Throws:

X

X extends Exception

handleClose

protected void handleClose()
                    throws X extends Exception

Deprecated.

Description copied from class: IterationWrapper

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

Overrides:

handleClose in class IterationWrapper<E,X extends Exception>

Throws:

X

X extends Exception