nsISupports clone ( )

Create a new iterator pointing to the same position in the underlying container or sequence to which this iterator currently points. The returned iterator is suitable for use in a subsequent call to isEqualTo() against this iterator.

nsISupports getElement ( )

Retrieve (and AddRef()) the element this iterator currently points to.

The result is undefined if this iterator currently points outside the useful range of the underlying container or sequence.

PRBool isEqualTo ( nsISupports anotherIterator )

Test if anotherIterator points to the same position in the underlying container or sequence.

The result is undefined if anotherIterator was not created by or for the same underlying container or sequence.

Arguments:

anotherIterator: another iterator to compare against, created by or for the same underlying container or sequence

void stepForward ( )

Advance this iterator to the next position in the underlying container or sequence.