net.ontopia.persistence.proxy
Class IdentityCollectionWrapper

java.lang.Object
  net.ontopia.persistence.proxy.IdentityCollectionWrapper

All Implemented Interfaces:

Iterable, Collection

public class IdentityCollectionWrapper
extends Object
implements Collection

INTERNAL: A set implementation that wraps an identity collection and presents the underlying collection as if it had PersistentIF instances inside. All identity lookup is done lazily, and no state is stored by this instance except for the current TransactionIF and the wrapped identities collection.

Field Summary

protected Collection	other
protected TransactionIF	txn

Constructor Summary

IdentityCollectionWrapper(TransactionIF txn, Collection identities)

Method Summary

boolean	add(Object o)
boolean	addAll(Collection c)
void	clear()
boolean	contains(Object o)
boolean	containsAll(Collection c)
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, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

equals, hashCode

Field Detail

txn

protected TransactionIF txn

other

protected Collection other

Constructor Detail

IdentityCollectionWrapper

public IdentityCollectionWrapper(TransactionIF txn,
                                 Collection identities)

Method Detail

clear

public void clear()

Specified by:

clear in interface Collection

add

public boolean add(Object o)

Specified by:

add in interface Collection

addAll

public boolean addAll(Collection c)

Specified by:

addAll in interface Collection

remove

public boolean remove(Object o)

Specified by:

remove 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

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

containsAll

public boolean containsAll(Collection c)

Specified by:

containsAll 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

toString

public String toString()

Overrides:

toString in class Object

iterator

public Iterator iterator()

Specified by:

iterator in interface Iterable

Specified by:

iterator in interface Collection