UnionIterator (Eclipse RDF4J 5.0.3)

java.lang.Object

org.eclipse.rdf4j.common.iterator.AbstractCloseableIterator<E>

org.eclipse.rdf4j.common.iterator.LookAheadIterator<E>

org.eclipse.rdf4j.common.iterator.UnionIterator<E>

All Implemented Interfaces:: Closeable, AutoCloseable, Iterator<E>

public class UnionIterator<E> extends LookAheadIterator<E>

Author:: MJAHale

Constructor Summary

Constructors

Constructor

Description

UnionIterator(Iterable<? extends E>... args)

Creates a new UnionIterator that returns the bag union of the results of a number of Iterators.

UnionIterator(Iterable<? extends Iterable<? extends E>> args)
Method Summary

Modifier and Type

Method

Description

protected E

getNextElement()

Gets the next element.

protected void

handleClose()

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

Methods inherited from class org.eclipse.rdf4j.common.iterator.LookAheadIterator
handleAlreadyClosed, hasNext, next, remove

Methods inherited from class org.eclipse.rdf4j.common.iterator.AbstractCloseableIterator
close, isClosed

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Iterator
forEachRemaining

Constructor Details
- UnionIterator
  
  public UnionIterator(Iterable<? extends E>... args)
  
  Creates a new UnionIterator that returns the bag union of the results of a number of Iterators.
  
  Parameters:
  
  args - The Iterators containing the elements to iterate over.
- UnionIterator
  
  public UnionIterator(Iterable<? extends Iterable<? extends E>> args)
Method Details
- getNextElement
  
  protected E getNextElement()
  
  Description copied from class: LookAheadIterator
  
  Gets the next element. Subclasses should implement this method so that it returns the next element.
  
  Specified by:
  
  getNextElement in class LookAheadIterator<E>
  
  Returns:
  
  The next element, or null if no more elements are available.
- handleClose
  
  protected void handleClose() throws IOException
  
  Description copied from class: AbstractCloseableIterator
  
  Called by AbstractCloseableIterator.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 LookAheadIterator<E>
  
  Throws:
  
  IOException