Class UnionIterator<E>
- java.lang.Object
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- org.eclipse.rdf4j.common.iterator.AbstractCloseableIterator<E>
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- org.eclipse.rdf4j.common.iterator.LookAheadIterator<E>
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- org.eclipse.rdf4j.common.iterator.UnionIterator<E>
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- All Implemented Interfaces:
Closeable,AutoCloseable,Iterator<E>
public class UnionIterator<E> extends LookAheadIterator<E>
- Author:
- MJAHale
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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)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected EgetNextElement()Gets the next element.protected voidhandleClose()Called byAbstractCloseableIterator.close()when it is called for the first time.-
Methods inherited from class org.eclipse.rdf4j.common.iterator.LookAheadIterator
handleAlreadyClosed, hasNext, next, remove
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Methods inherited from class org.eclipse.rdf4j.common.iterator.AbstractCloseableIterator
close, isClosed
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface java.util.Iterator
forEachRemaining
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Method Detail
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getNextElement
protected E getNextElement()
Description copied from class:LookAheadIteratorGets the next element. Subclasses should implement this method so that it returns the next element.- Specified by:
getNextElementin classLookAheadIterator<E>- Returns:
- The next element, or null if no more elements are available.
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handleClose
protected void handleClose() throws IOExceptionDescription copied from class:AbstractCloseableIteratorCalled byAbstractCloseableIterator.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:
handleClosein classLookAheadIterator<E>- Throws:
IOException
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