/**
* Creates a Predicate that returns true the first time an object is
* encountered, and false if the same object is received
* again. The comparison is by equals(). A <code>null</code> input object
* is accepted and will return true the first time, and false subsequently
* as well.
*
* @see org.apache.commons.collections.functors.UniquePredicate
*
* @return the predicate
*/
public static Predicate uniquePredicate()
{
// must return new instance each time
return(UniquePredicate.getInstance());
}
//-------------------------------------------------------------------------
/**
* Constructs a new <code>UniqueFilterIterator</code>.
*
* @param iterator the iterator to use
*/
public UniqueFilterIterator(java.util.Iterator <Object> iterator) : base(iterator, UniquePredicate.getInstance())
{
}
