Class DualUnionIteration<E>

java.lang.Object

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

All Implemented Interfaces:

AutoCloseable, Iterator<E>, CloseableIteration<E>

public class DualUnionIteration<E>
extends Object
implements CloseableIteration<E>

Provides a bag union of the two provided iterations.

Field Summary

Fields inherited from interface CloseableIteration

EMPTY_STATEMENT_ITERATION

Constructor Summary

Constructors

Constructor	Description
DualUnionIteration(Comparator<E> cmp, CloseableIteration<? extends E> iteration1, CloseableIteration<? extends E> iteration2)

Method Summary

Modifier and Type	Method	Description
final void	close()	Closes this iteration, freeing any resources that it is holding.
static <E> CloseableIteration<E>	getInstance(CloseableIteration<E> leftIteration, CloseableIteration<E> rightIteration)
static <E> CloseableIteration<? extends E>	getWildcardInstance(Comparator<E> cmp, CloseableIteration<? extends E> leftIteration, CloseableIteration<? extends E> rightIteration)
static <E> CloseableIteration<? extends E>	getWildcardInstance(CloseableIteration<? extends E> leftIteration, CloseableIteration<? extends E> rightIteration)
final boolean	hasNext()
final E	next()
void	remove()	Throws an UnsupportedOperationException.

Methods inherited from class Object

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

Methods inherited from interface CloseableIteration

stream

Methods inherited from interface Iterator

forEachRemaining

Constructor Details

DualUnionIteration

@Experimental
public DualUnionIteration(Comparator<E> cmp,
 CloseableIteration<? extends E> iteration1,
 CloseableIteration<? extends E> iteration2)

Method Details

getWildcardInstance

public static <E> CloseableIteration<? extends E> getWildcardInstance(CloseableIteration<? extends E> leftIteration,
 CloseableIteration<? extends E> rightIteration)

getWildcardInstance

@Experimental
public static <E> CloseableIteration<? extends E> getWildcardInstance(Comparator<E> cmp,
 CloseableIteration<? extends E> leftIteration,
 CloseableIteration<? extends E> rightIteration)

getInstance

public static <E> CloseableIteration<E> getInstance(CloseableIteration<E> leftIteration,
 CloseableIteration<E> rightIteration)

hasNext

public final boolean hasNext()

Specified by:

hasNext in interface Iterator<E>

next

public final E next()

Specified by:

next in interface Iterator<E>

remove

public void remove()

Throws an UnsupportedOperationException.

Specified by:

remove in interface Iterator<E>

close

public final void close()

Description copied from interface: CloseableIteration

Closes this iteration, freeing any resources that it is holding. If the iteration has already been closed then invoking this method has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface CloseableIteration<E>