Package overit.geocall.util

Class IteratorFilter<T>

java.lang.Object
overit.geocall.util.IteratorFilter<T>
All Implemented Interfaces:
Iterator<T>
public class IteratorFilter<T> extends Object implements Iterator<T>
An IteratorFilter is used to filter Objects in an Iterator and present them as a new Iterator. The filter is initialised with a Predicate; only Objects for which the predicate p.valid(Object o) returns true will be passed on, other object will be left out. The next object from the original iterator will be only accessed with a call to the next() method of this IteratorFilter. The IteratorFilter does not allow removal of objects.
Example:
.. Iterator it = someSetOfStrings.iterator(); Predicate p = new Predicate() { public boolean valid(Object o) { return ((String)o).startsWith("a"); } }; Iterator filteredIt = new IteratorFilter(it, p); ..