Package org.eclipse.rdf4j.common.iteration

Class LimitIteration<E>

java.lang.Object

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

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

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

All Implemented Interfaces:

AutoCloseable, Iterator<E>, CloseableIteration<E>

public class LimitIteration<E>
extends IterationWrapper<E>

An Iteration that limits the amount of elements that it returns from an underlying Iteration to a fixed amount. This class returns the first limit elements from the underlying Iteration and drops the rest.

Field Summary

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

wrappedIter

Constructor Summary

Constructors

Constructor	Description
LimitIteration(CloseableIteration<? extends E> iter, long limit)	Creates a new LimitIteration.

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()	Checks whether the wrapped Iteration contains more elements, closing this Iteration when this is not the case.
E	next()	Returns the next element from the wrapped Iteration.

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

handleClose, 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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Details

LimitIteration

public LimitIteration(CloseableIteration<? extends E> iter,
 long limit)

Creates a new LimitIteration.

Parameters:

iter - The underlying Iteration, must not be null.

limit - The number of query answers to return, must be >= 0.

Method Details

hasNext

public boolean hasNext()

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 Iterator<E>

Overrides:

hasNext in class IterationWrapper<E>

Returns:

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

next

public E next()

Description copied from class: IterationWrapper

Returns the next element from the wrapped Iteration.

Specified by:

next in interface Iterator<E>

Overrides:

next in class IterationWrapper<E>