net.ontopia.utils
Class GrabberCollection

java.lang.Object
  net.ontopia.utils.GrabberCollection

All Implemented Interfaces:

java.lang.Iterable, java.util.Collection, CachedIF

public class GrabberCollection
extends java.lang.Object
implements java.util.Collection, CachedIF

INTERNAL: A collection that uses a grabber to populate itself by grabbing the individual objects of the nested collection. A decider can be used to decide whether grabbed objects should be added to the collection or not.

Constructor Summary

GrabberCollection(java.util.Collection coll, GrabberIF grabber)

GrabberCollection(java.util.Collection coll, GrabberIF grabber, DeciderIF decider)

Method Summary

boolean	add(java.lang.Object o)
boolean	addAll(java.util.Collection c)
void	clear()
boolean	contains(java.lang.Object o)
boolean	containsAll(java.util.Collection c)
boolean	equals(java.lang.Object o)
boolean	isEmpty()
java.util.Iterator	iterator()
void	refresh() Refreshes the collection by looping over the nested collection and regrabbing its items.
boolean	remove(java.lang.Object o)
boolean	removeAll(java.util.Collection c)
boolean	retainAll(java.util.Collection c)
int	size()
java.lang.Object[]	toArray()
java.lang.Object[]	toArray(java.lang.Object[] a)

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Collection

hashCode

Constructor Detail

GrabberCollection

public GrabberCollection(java.util.Collection coll,
                         GrabberIF grabber)

GrabberCollection

public GrabberCollection(java.util.Collection coll,
                         GrabberIF grabber,
                         DeciderIF decider)

Method Detail

refresh

public void refresh()

Refreshes the collection by looping over the nested collection and regrabbing its items. Any changes done to the previous collection will be lost.

Specified by:

refresh in interface CachedIF

clear

public void clear()

Specified by:

clear in interface java.util.Collection

contains

public boolean contains(java.lang.Object o)

Specified by:

contains in interface java.util.Collection

containsAll

public boolean containsAll(java.util.Collection c)

Specified by:

containsAll in interface java.util.Collection

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Collection

Overrides:

equals in class java.lang.Object

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection

iterator

public java.util.Iterator iterator()

Specified by:

iterator in interface java.lang.Iterable

Specified by:

iterator in interface java.util.Collection

size

public int size()

Specified by:

size in interface java.util.Collection

toArray

public java.lang.Object[] toArray()

Specified by:

toArray in interface java.util.Collection

toArray

public java.lang.Object[] toArray(java.lang.Object[] a)

Specified by:

toArray in interface java.util.Collection

add

public boolean add(java.lang.Object o)

Specified by:

add in interface java.util.Collection

addAll

public boolean addAll(java.util.Collection c)

Specified by:

addAll in interface java.util.Collection

remove

public boolean remove(java.lang.Object o)

Specified by:

remove in interface java.util.Collection

removeAll

public boolean removeAll(java.util.Collection c)

Specified by:

removeAll in interface java.util.Collection

retainAll

public boolean retainAll(java.util.Collection c)

Specified by:

retainAll in interface java.util.Collection