Class HashNMap.EmptyIterator

java.lang.Object
org.jfree.util.HashNMap.EmptyIterator
All Implemented Interfaces:
Iterator
Enclosing class:
HashNMap

private static final class HashNMap.EmptyIterator extends Object implements Iterator
An helper class to implement an empty iterator. This iterator will always return false when hasNext is called.
  • Constructor Details

    • EmptyIterator

      private EmptyIterator()
      DefaultConstructor.
  • Method Details

    • hasNext

      public boolean hasNext()
      Returns true if the iteration has more elements. (In other words, returns true if next would return an element rather than throwing an exception.)
      Specified by:
      hasNext in interface Iterator
      Returns:
      true if the iterator has more elements.
    • next

      public Object next()
      Returns the next element in the iteration.
      Specified by:
      next in interface Iterator
      Returns:
      the next element in the iteration.
      Throws:
      NoSuchElementException - iteration has no more elements.
    • remove

      public void remove()
      Removes from the underlying collection the last element returned by the iterator (optional operation). This method can be called only once per call to next. The behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method.
      Specified by:
      remove in interface Iterator
      Throws:
      UnsupportedOperationException - if the remove operation is not supported by this Iterator.
      IllegalStateException - if the next method has not yet been called, or the remove method has already been called after the last call to the next method.