org.apache.openjpa.kernel
Class AttachManager

java.lang.Object
  org.apache.openjpa.kernel.AttachManager

public class AttachManager
extends Object

Handles attaching instances.

Author:

Marc Prud'hommeaux

Constructor Summary

AttachManager(BrokerImpl broker, boolean copyNew, OpCallbacks call)
Constructor.

Method Summary

(package private) StateManagerImpl	assertManaged(Object obj) Throw an exception if the given object is not managed; otherwise return its state manager.
Object	attach(Object pc) Return an attached version of the given instance.
(package private) Object	attach(Object toAttach, PersistenceCapable into, OpenJPAStateManager owner, ValueMetaData ownerMeta, boolean explicit) Attach.
Object[]	attachAll(Collection instances) Return attached versions of the given instances.
(package private) void	fireBeforeAttach(Object pc, ClassMetaData meta) Fire before-attach event.
(package private) PersistenceCapable	getAttachedCopy(Object pc) If the passed in argument has already been attached, return the (cached) attached copy.
OpCallbacks	getBehavior() Return the behavior supplied on construction.
(package private) BrokerImpl	getBroker() Owning broker.
boolean	getCopyNew() Return whether to copy new instances being persisted.
(package private) Object	getDetachedObjectId(Object pc) Return the detached oid of the given instance.
(package private) ProxyManager	getProxyManager() System proxy manager.
(package private) void	setAttachedCopy(Object from, PersistenceCapable into) Record the attached copy in the cache.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AttachManager

public AttachManager(BrokerImpl broker,
                     boolean copyNew,
                     OpCallbacks call)

Constructor. Supply broker attaching to.

Method Detail

getBehavior

public OpCallbacks getBehavior()

Return the behavior supplied on construction.

getCopyNew

public boolean getCopyNew()

Return whether to copy new instances being persisted.

attach

public Object attach(Object pc)

Return an attached version of the given instance.

attachAll

public Object[] attachAll(Collection instances)

Return attached versions of the given instances.

attach

Object attach(Object toAttach,
              PersistenceCapable into,
              OpenJPAStateManager owner,
              ValueMetaData ownerMeta,
              boolean explicit)

Attach.

Parameters:

toAttach - the detached object

into - the instance we're attaching into

owner - state manager for into

ownerMeta - the field we traversed to find toAttach

explicit - whether to make new instances explicitly persistent

getBroker

BrokerImpl getBroker()

Owning broker.

getProxyManager

ProxyManager getProxyManager()

System proxy manager.

getAttachedCopy

PersistenceCapable getAttachedCopy(Object pc)

If the passed in argument has already been attached, return the (cached) attached copy.

setAttachedCopy

void setAttachedCopy(Object from,
                     PersistenceCapable into)

Record the attached copy in the cache.

fireBeforeAttach

void fireBeforeAttach(Object pc,
                      ClassMetaData meta)

Fire before-attach event.

getDetachedObjectId

Object getDetachedObjectId(Object pc)

Return the detached oid of the given instance.

assertManaged

StateManagerImpl assertManaged(Object obj)

Throw an exception if the given object is not managed; otherwise return its state manager.