Class DualUnionIteration<E,X extends Exception>
- java.lang.Object
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- org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E,X>
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- org.eclipse.rdf4j.common.iteration.LookAheadIteration<E,X>
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- org.eclipse.rdf4j.common.iteration.DualUnionIteration<E,X>
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- 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.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static <E,X extends Exception>
CloseableIteration<E,X>getInstance(CloseableIteration<E,X> leftIteration, CloseableIteration<E,X> rightIteration)EgetNextElement()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 voidhandleClose()Called byAbstractCloseableIteration.close()when it is called for the first time.-
Methods inherited from class org.eclipse.rdf4j.common.iteration.LookAheadIteration
hasNext, next, remove
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Methods inherited from class org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration
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 org.eclipse.rdf4j.common.iteration.CloseableIteration
stream
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Method Detail
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getWildcardInstance
public static <E,X extends Exception> CloseableIteration<? extends E,X> getWildcardInstance(CloseableIteration<? extends E,X> leftIteration, CloseableIteration<? extends E,X> rightIteration)
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getInstance
public static <E,X extends Exception> CloseableIteration<E,X> getInstance(CloseableIteration<E,X> leftIteration, CloseableIteration<E,X> rightIteration)
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getNextElement
public E getNextElement() throws X extends Exception
Description copied from class:LookAheadIterationGets the next element. Subclasses should implement this method so that it returns the next element.- Specified by:
getNextElementin classLookAheadIteration<E,X extends Exception>- Returns:
- The next element, or null if no more elements are available.
- Throws:
X extends Exception
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handleClose
protected final void handleClose() throws X extends ExceptionDescription copied from class:AbstractCloseableIterationCalled byAbstractCloseableIteration.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 classLookAheadIteration<E,X extends Exception>- Throws:
XX extends Exception
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