Class DistinctIteration<E, X extends Exception>

java.lang.Object
org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E,X>
org.eclipse.rdf4j.common.iteration.IterationWrapper<E,X>
org.eclipse.rdf4j.common.iteration.FilterIteration<E,X>
org.eclipse.rdf4j.common.iteration.DistinctIteration<E,X>
All Implemented Interfaces:
AutoCloseable, CloseableIteration<E,X>, Iteration<E,X>
Direct Known Subclasses:
LimitedSizeDistinctIteration
@Deprecated(since="4.1.0") public class DistinctIteration<E, X extends Exception> extends FilterIteration<E,X>
Deprecated.
An Iteration that filters any duplicate elements from an underlying iterator.

  • Field Details

    • excludeSet

      private final Set<E> excludeSet
      Deprecated.
      The elements that have already been returned.

  • Constructor Details

    • DistinctIteration

      public DistinctIteration(Iteration<? extends E, ? extends X> iter)
      Deprecated.
      Creates a new DistinctIterator.
      Parameters:
      iter - The underlying iterator.

    • DistinctIteration

      public DistinctIteration(Iteration<? extends E, ? extends X> iter, Supplier<Set<E>> setMaker)
      Deprecated.

  • Method Details

    • accept

      protected boolean accept(E object) throws X
      Deprecated.
      Returns true if the specified object hasn't been seen before.
      Specified by:
      accept in class FilterIteration<E, X extends Exception>
      Parameters:
      object - The object to be tested.
      Returns:
      true if the object should be returned, false otherwise.
      Throws:
      X

    • inExcludeSet

      private boolean inExcludeSet(E object)
      Deprecated.
      Parameters:
      object -
      Returns:
      true if the object is in the excludeSet

    • add

      protected boolean add(E object) throws X
      Deprecated.
      Parameters:
      object - to put into the set
      Throws:
      X

    • makeSet

      protected Set<E> makeSet()
      Deprecated.