Package org.eclipse.rdf4j.common.iteration

Class SingletonIteration<E,X extends Exception>

java.lang.Object
org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E,X>
org.eclipse.rdf4j.common.iteration.SingletonIteration<E,X>
All Implemented Interfaces:
AutoCloseable, CloseableIteration<E,X>, Iteration<E,X>
public class SingletonIteration<E,X extends Exception> extends AbstractCloseableIteration<E,X>
An Iteration that contains exactly one element.

  • Constructor Details

    • SingletonIteration

      public SingletonIteration(E value)
      Creates a new EmptyIteration.

  • Method Details

    • hasNext

      public boolean hasNext()
      Description copied from interface: Iteration
      Returns true if the iteration has more elements. (In other words, returns true if Iteration.next() would return an element rather than throwing a NoSuchElementException.)
      Returns:
      true if the iteration has more elements.

    • next

      public E next() throws X
      Description copied from interface: Iteration
      Returns the next element in the iteration.
      Returns:
      the next element in the iteration.
      Throws:
      X extends Exception

    • remove

      public void remove()
      Description copied from interface: Iteration
      Removes from the underlying collection the last element returned by the iteration (optional operation). This method can be called only once per call to next.

    • handleClose

      protected void handleClose() throws X
      Description copied from class: AbstractCloseableIteration
      Called by AbstractCloseableIteration.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 AbstractCloseableIteration<E,X extends Exception>
      Throws:
      X