Class DistinctIteration<E>
- java.lang.Object
-
- org.eclipse.rdf4j.common.iteration.FilterIteration<E>
-
- org.eclipse.rdf4j.common.iteration.DistinctIteration<E>
-
- All Implemented Interfaces:
AutoCloseable
,Iterator<E>
,CloseableIteration<E>
public class DistinctIteration<E> extends FilterIteration<E>
An Iteration that filters any duplicate elements from an underlying iterator.
-
-
Constructor Summary
Constructors Constructor Description DistinctIteration(CloseableIteration<? extends E> iter)
Deprecated.DistinctIteration(CloseableIteration<? extends E> iter, Supplier<Set<E>> setMaker)
Creates a new DistinctIterator.DistinctIteration(CloseableIteration<? extends E> iter, Set<E> excludeSet)
Creates a new DistinctIterator.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected boolean
accept(E object)
Returns true if the specified object hasn't been seen before.protected boolean
add(E object)
protected void
handleClose()
Closes this Iteration and also closes the wrapped Iteration if it is aCloseableIteration
.-
Methods inherited from class org.eclipse.rdf4j.common.iteration.FilterIteration
close, hasNext, next, remove
-
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
-
Methods inherited from interface java.util.Iterator
forEachRemaining
-
-
-
-
Constructor Detail
-
DistinctIteration
@Deprecated public DistinctIteration(CloseableIteration<? extends E> iter)
Deprecated.Creates a new DistinctIterator.- Parameters:
iter
- The underlying iterator.
-
DistinctIteration
public DistinctIteration(CloseableIteration<? extends E> iter, Set<E> excludeSet)
Creates a new DistinctIterator.- Parameters:
Set
-a hopefully optimized set iter
- The underlying iterator.
-
DistinctIteration
public DistinctIteration(CloseableIteration<? extends E> iter, Supplier<Set<E>> setMaker)
Creates a new DistinctIterator.- Parameters:
Supplier
-> a supplier of a hopefully optimized set iter
- The underlying iterator.
-
-
Method Detail
-
accept
protected boolean accept(E object)
Returns true if the specified object hasn't been seen before.- Specified by:
accept
in classFilterIteration<E>
- Parameters:
object
- The object to be tested.- Returns:
- true if the object should be returned, false otherwise.
-
handleClose
protected void handleClose()
Description copied from class:FilterIteration
Closes this Iteration and also closes the wrapped Iteration if it is aCloseableIteration
.- Specified by:
handleClose
in classFilterIteration<E>
-
add
protected boolean add(E object)
- Parameters:
object
- to put into the set
-
-