DualUnionIteration (Eclipse RDF4J 4.1.0-M1)

java.lang.Object

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

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

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

All Implemented Interfaces:: AutoCloseable, CloseableIteration<E,X>, Iteration<E,X>

public class DualUnionIteration<E,X extends Exception> extends LookAheadIteration<E,X>

Provides a bag union of the two provided iterations.

Method Summary

Modifier and Type

Method

Description

static <E, X extends Exception> CloseableIteration<E,X>

getInstance(CloseableIteration<E,X> leftIteration, CloseableIteration<E,X> rightIteration)

E

getNextElement()

Gets the next element.

static <E, X extends Exception> CloseableIteration<? extends E,X>

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

protected final void

handleClose()

Called by AbstractCloseableIteration.close() when it is called for the first time.

Methods inherited from class org.eclipse.rdf4j.common.iteration.LookAheadIteration
hasNext, next, 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

Method Details
- getWildcardInstance
  
  public static <E, X extends Exception> CloseableIteration<? extends E,X> getWildcardInstance(CloseableIteration<? extends E,X> leftIteration, CloseableIteration<? extends E,X> rightIteration)
- getInstance
  
  public static <E, X extends Exception> CloseableIteration<E,X> getInstance(CloseableIteration<E,X> leftIteration, CloseableIteration<E,X> rightIteration)
- getNextElement
  
  public E getNextElement() throws X
  
  Description copied from class: LookAheadIteration
  
  Gets the next element. Subclasses should implement this method so that it returns the next element.
  
  Specified by:
  
  getNextElement in class LookAheadIteration<E,X extends Exception>
  
  Returns:
  
  The next element, or null if no more elements are available.
  
  Throws:
  
  X extends Exception
- handleClose
  
  protected final void handleClose() throws X
  
  Description copied from class: AbstractCloseableIteration
  
  Called by AbstractCloseableIteration.close() when it is called for the first time. This method is only called once on each iteration. By default, this method does nothing.
  
  Overrides:
  
  handleClose in class LookAheadIteration<E,X extends Exception>
  
  Throws:
  
  X