org.apache.openjpa.util
Class ProxyLinkedList

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<E>
          java.util.AbstractSequentialList<E>
              java.util.LinkedList
                  org.apache.openjpa.util.ProxyLinkedList

All Implemented Interfaces:

Serializable, Cloneable, Iterable, Collection, List, Queue, Proxy, ProxyCollection

public class ProxyLinkedList
extends LinkedList
implements ProxyCollection

Extension of the LinkedList type that dirties the persistent/transactional field it is assigned to on modification. The need to dirty the field on any modification mandates that this class must override all mutator methods of the base type. This may lead to multiple calls to dirty for one state change if one mutator method of the base type calls another.

Author:

Abe White

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

ProxyLinkedList()

ProxyLinkedList(Class elementType, boolean trackChanges, OpenJPAConfiguration conf)

Method Summary

void	add(int index, Object value)
boolean	add(Object value)
boolean	addAll(Collection values)
boolean	addAll(int index, Collection values)
void	addFirst(Object value)
void	addLast(Object value)
void	clear()
Object	copy(Object orig) Return an unproxied copy of the given instance.
ChangeTracker	getChangeTracker() Return the change tracker for this proxy, or null if none.
OpenJPAStateManager	getOwner() Return the owning object.
int	getOwnerField() Return the owning field index.
Iterator	iterator()
ListIterator	listIterator()
ListIterator	listIterator(int index)
ProxyCollection	newInstance(Class elementType, Comparator compare, boolean trackChanges, OpenJPAConfiguration conf) This method should return a new proxy of the same concrete type as the implementing class.
Object	remove(int index)
boolean	remove(Object o)
boolean	removeAll(Collection c)
Object	removeFirst()
Object	removeLast()
boolean	retainAll(Collection c)
Object	set(int index, Object element)
void	setOwner(OpenJPAStateManager sm, int field) Reset the state of the proxy, and set the owning instance of the proxy and the name of the field it is assigned to.
protected Object	writeReplace()

Methods inherited from class java.util.LinkedList

clone, contains, element, get, getFirst, getLast, indexOf, lastIndexOf, offer, peek, poll, remove, size, toArray, toArray

Methods inherited from class java.util.AbstractList

equals, hashCode, removeRange, subList

Methods inherited from class java.util.AbstractCollection

containsAll, isEmpty, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.List

containsAll, equals, hashCode, isEmpty, subList

Constructor Detail

ProxyLinkedList

public ProxyLinkedList()

ProxyLinkedList

public ProxyLinkedList(Class elementType,
                       boolean trackChanges,
                       OpenJPAConfiguration conf)

Method Detail

setOwner

public void setOwner(OpenJPAStateManager sm,
                     int field)

Description copied from interface: Proxy

Reset the state of the proxy, and set the owning instance of the proxy and the name of the field it is assigned to. Set to null to indicate that the proxy is no longer managed.

Specified by:

setOwner in interface Proxy

getOwner

public OpenJPAStateManager getOwner()

Description copied from interface: Proxy

Return the owning object.

Specified by:

getOwner in interface Proxy

getOwnerField

public int getOwnerField()

Description copied from interface: Proxy

Return the owning field index.

Specified by:

getOwnerField in interface Proxy

getChangeTracker

public ChangeTracker getChangeTracker()

Description copied from interface: Proxy

Return the change tracker for this proxy, or null if none.

Specified by:

getChangeTracker in interface Proxy

copy

public Object copy(Object orig)

Description copied from interface: Proxy

Return an unproxied copy of the given instance. This method is used by proxy managers to create backup values for use in rollback.

Specified by:

copy in interface Proxy

newInstance

public ProxyCollection newInstance(Class elementType,
                                   Comparator compare,
                                   boolean trackChanges,
                                   OpenJPAConfiguration conf)

Description copied from interface: ProxyCollection

This method should return a new proxy of the same concrete type as the implementing class. Used by the ProxyManager factories: one template instance of each type is created for the purpose of producing new instances via this method. Overcomes the performance penalties of reflection.

Specified by:

newInstance in interface ProxyCollection

add

public void add(int index,
                Object value)

Specified by:

add in interface List

Overrides:

add in class LinkedList

add

public boolean add(Object value)

Specified by:

add in interface Collection

Specified by:

add in interface List

Overrides:

add in class LinkedList

addFirst

public void addFirst(Object value)

Overrides:

addFirst in class LinkedList

addLast

public void addLast(Object value)

Overrides:

addLast in class LinkedList

addAll

public boolean addAll(int index,
                      Collection values)

Specified by:

addAll in interface List

Overrides:

addAll in class LinkedList

addAll

public boolean addAll(Collection values)

Specified by:

addAll in interface Collection

Specified by:

addAll in interface List

Overrides:

addAll in class LinkedList

clear

public void clear()

Specified by:

clear in interface Collection

Specified by:

clear in interface List

Overrides:

clear in class LinkedList

iterator

public Iterator iterator()

Specified by:

iterator in interface Iterable

Specified by:

iterator in interface Collection

Specified by:

iterator in interface List

Overrides:

iterator in class AbstractSequentialList

listIterator

public ListIterator listIterator()

Specified by:

listIterator in interface List

Overrides:

listIterator in class AbstractList

listIterator

public ListIterator listIterator(int index)

Specified by:

listIterator in interface List

Overrides:

listIterator in class LinkedList

remove

public Object remove(int index)

Specified by:

remove in interface List

Overrides:

remove in class LinkedList

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection

Specified by:

remove in interface List

Overrides:

remove in class LinkedList

removeFirst

public Object removeFirst()

Overrides:

removeFirst in class LinkedList

removeLast

public Object removeLast()

Overrides:

removeLast in class LinkedList

removeAll

public boolean removeAll(Collection c)

Specified by:

removeAll in interface Collection

Specified by:

removeAll in interface List

Overrides:

removeAll in class AbstractCollection

retainAll

public boolean retainAll(Collection c)

Specified by:

retainAll in interface Collection

Specified by:

retainAll in interface List

Overrides:

retainAll in class AbstractCollection

set

public Object set(int index,
                  Object element)

Specified by:

set in interface List

Overrides:

set in class LinkedList

writeReplace

protected Object writeReplace()
                       throws ObjectStreamException

Throws:

ObjectStreamException