org.castor.persist.proxy
Class RelationCollection

java.lang.Object
  extended by org.castor.persist.proxy.RelationCollection
All Implemented Interfaces:
java.lang.Iterable, java.util.Collection, Lazy, TxSynchronizable

public class RelationCollection
extends java.lang.Object
implements java.util.Collection, Lazy, TxSynchronizable

RelationCollection implements Collection It is a lazy Colllection. The collection initially contains only the identities of elements of one type. If any element is needed, it will be fetched "on the fly".

Author:
Thomas Yip

Constructor Summary
RelationCollection(TransactionContext tx, OID enclosing, LockEngine engine, ClassMolder molder, AccessMode amode, java.util.ArrayList ids)
          Creates an instance of RelationCollection
 
Method Summary
 boolean add(java.lang.Object o)
           
 boolean addAll(java.util.Collection c)
           
 void clear()
           
 void committed(TransactionContext tx)
          Called at the end of a transaction after commit.
 boolean contains(java.lang.Object o)
           
 boolean containsAll(java.util.Collection c)
           
 boolean equals(java.lang.Object o)
           
 java.lang.Object find(java.lang.Object ids)
           
 java.util.ArrayList getAdded()
           
 java.util.ArrayList getDeleted()
           
 java.util.ArrayList getIdentitiesList()
           
 boolean isEmpty()
           
 java.util.Iterator iterator()
           
 boolean remove(java.lang.Object o)
           
 boolean removeAll(java.util.Collection c)
           
 boolean retainAll(java.util.Collection c)
           
 void rolledback(TransactionContext tx)
          Called at the end of a transaction after rollback.
 int size()
           
 java.lang.Object[] toArray()
           
 java.lang.Object[] toArray(java.lang.Object[] a)
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.util.Collection
hashCode
 

Constructor Detail

RelationCollection

public RelationCollection(TransactionContext tx,
                          OID enclosing,
                          LockEngine engine,
                          ClassMolder molder,
                          AccessMode amode,
                          java.util.ArrayList ids)
Creates an instance of RelationCollection

Parameters:
tx - Current transaction context
enclosing - Enclosing OID
engine - Associated LockEngine
molder - Associated ClassMolder
amode - Access mode
ids - Set of identifiers.
Method Detail

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

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

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

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

getIdentitiesList

public java.util.ArrayList getIdentitiesList()

find

public java.lang.Object find(java.lang.Object ids)

getDeleted

public java.util.ArrayList getDeleted()

getAdded

public java.util.ArrayList getAdded()

committed

public void committed(TransactionContext tx)
Description copied from interface: TxSynchronizable
Called at the end of a transaction after commit.

Specified by:
committed in interface TxSynchronizable

rolledback

public void rolledback(TransactionContext tx)
Description copied from interface: TxSynchronizable
Called at the end of a transaction after rollback.

Specified by:
rolledback in interface TxSynchronizable


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