com.phoenixst.collections
Class FilteredCollection

java.lang.Object
  java.util.AbstractCollection
      com.phoenixst.collections.FilteredCollection

All Implemented Interfaces:

Serializable, Iterable, Collection

public class FilteredCollection
extends AbstractCollection
implements Serializable

A Collection which presents a filtered view of another.

Since:

1.0

Version:

$Revision: 1.11 $

Author:

Ray A. Conner

See Also:

Serialized Form

Constructor Summary

FilteredCollection(Collection delegate, org.apache.commons.collections.Predicate predicate)
Creates a new FilteredCollection.

Method Summary

boolean	add(Object object)
boolean	contains(Object object)
boolean	isEmpty()
Iterator	iterator() Returns an Iterator over the elements of this Collection.
boolean	remove(Object object)
int	size()

Methods inherited from class java.util.AbstractCollection

addAll, clear, containsAll, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

equals, hashCode

Constructor Detail

FilteredCollection

public FilteredCollection(Collection delegate,
                          org.apache.commons.collections.Predicate predicate)

Creates a new FilteredCollection. If a null Predicate is passed to this constructor, TruePredicate is used internally.

Method Detail

size

public int size()

Specified by:

size in interface Collection

Specified by:

size in class AbstractCollection

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection

Overrides:

isEmpty in class AbstractCollection

add

public boolean add(Object object)

Specified by:

add in interface Collection

Overrides:

add in class AbstractCollection

remove

public boolean remove(Object object)

Specified by:

remove in interface Collection

Overrides:

remove in class AbstractCollection

contains

public boolean contains(Object object)

Specified by:

contains in interface Collection

Overrides:

contains in class AbstractCollection

iterator

public Iterator iterator()

Returns an Iterator over the elements of this Collection. If the remove() method is called after hasNext() without an intervening call to next(), the last element returned by next() will be removed by calling Collection.remove( object ) on the underlying Collection. Depending upon the underlying Collection implementation, this may invalidate this Iterator.

Specified by:

iterator in interface Iterable

Specified by:

iterator in interface Collection

Specified by:

iterator in class AbstractCollection