gausssoft.collections
Class FilterCollection

java.lang.Object
  |
  +--gausssoft.collections.FilterCollection

All Implemented Interfaces:

Collection, Serializable

public class FilterCollection

extends Object

implements Collection, Serializable

The FilterCollection class contains another Collection, which it uses as it's basic source of data, possibly transforming the data along the way or providing additional functionality.

Each method in this implementation calls the method with the same signature in the backing collection.

This class can only be serialized if the backing collection is serializable.

Author:

Allan Crooks

See Also:

Collection, Serialized Form

Field Summary

protected Collection

root Backing collection.

Constructor Summary

FilterCollection(Collection root)
Creates a new FilterCollection.

Method Summary

boolean	add(Object o)
boolean	addAll(Collection c)
void	clear()
boolean	contains(Object o)
boolean	containsAll(Collection c)
boolean	equals(Object o)
int	hashCode()
boolean	isEmpty()
Iterator	iterator()
boolean	remove(Object o)
boolean	removeAll(Collection c)
boolean	retainAll(Collection c)
int	size()
Object[]	toArray()
Object[]	toArray(Object[] a)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

root

protected Collection root

Backing collection.

Constructor Detail

FilterCollection

public FilterCollection(Collection root)

Creates a new FilterCollection.

Parameters:

root - The collection to use as the backing collection.

Throws:

NullPointerException - If root is null.

Method Detail

size

public int size()

Specified by:

size in interface Collection

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection

iterator

public Iterator iterator()

Specified by:

iterator in interface Collection

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection

toArray

public Object[] toArray(Object[] a)

Specified by:

toArray in interface Collection

add

public boolean add(Object o)

Specified by:

add in interface Collection

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection

containsAll

public boolean containsAll(Collection c)

Specified by:

containsAll in interface Collection

addAll

public boolean addAll(Collection c)

Specified by:

addAll in interface Collection

removeAll

public boolean removeAll(Collection c)

Specified by:

removeAll in interface Collection

retainAll

public boolean retainAll(Collection c)

Specified by:

retainAll in interface Collection

clear

public void clear()

Specified by:

clear in interface Collection

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object