Package org.apache.commons.collections.iterators

Class EmptyIterator

java.lang.Object
org.apache.commons.collections.iterators.EmptyIterator
All Implemented Interfaces:
Iterator, ResettableIterator
public class EmptyIterator extends Object implements ResettableIterator
Provides an implementation of an empty iterator.

This class provides an implementation of an empty iterator. This class provides for binary compatability between Commons Collections 2.1.1 and 3.1 due to issues with IteratorUtils.

Since:
Commons Collections 2.1.1 and 3.1
Version:
$Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $
Author:
Stephen Colebourne

  • Field Details

    • RESETTABLE_INSTANCE

      public static final ResettableIterator RESETTABLE_INSTANCE
      Singleton instance of the iterator.
      Since:
      Commons Collections 3.1

    • INSTANCE

      public static final Iterator INSTANCE
      Singleton instance of the iterator.
      Since:
      Commons Collections 2.1.1 and 3.1

  • Constructor Details

    • EmptyIterator

      protected EmptyIterator()
      Constructor.

  • Method Details

    • hasNext

      public boolean hasNext()

    • next

      public Object next()

    • hasPrevious

      public boolean hasPrevious()

    • previous

      public Object previous()

    • nextIndex

      public int nextIndex()

    • previousIndex

      public int previousIndex()

    • add

      public void add(Object obj)

    • set

      public void set(Object obj)

    • remove

      public void remove()

    • getKey

      public Object getKey()

    • getValue

      public Object getValue()

    • setValue

      public Object setValue(Object value)

    • reset

      public void reset()