org.apache.openjpa.kernel
Class DetachedStateManager

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

All Implemented Interfaces:

Serializable, FieldConsumer, FieldManager, FieldSupplier, StateManager, OpenJPAStateManager

public class DetachedStateManager
extends Object
implements OpenJPAStateManager, Serializable

Internal state manager for detached instances. Does not fully implement OpenJPAStateManager contract to allow for serialization.

Author:

Steve Kim

See Also:

Serialized Form

Field Summary

protected double	dblval
protected int	field
protected long	longval
protected Object	objval

Fields inherited from interface org.apache.openjpa.kernel.OpenJPAStateManager

SET_ATTACH, SET_REMOTE, SET_USER

Constructor Summary

DetachedStateManager(PersistenceCapable pc, OpenJPAStateManager sm, BitSet load, boolean access, boolean multithreaded)
Constructor.

Method Summary

void	accessingField(int idx) Field access callback.
boolean	assignObjectId(boolean flush) Ask the store manager to assign a permanent oid to this new instance.
Object	attach(org.apache.openjpa.kernel.AttachManager manager, Object toAttach, ClassMetaData meta, PersistenceCapable into, OpenJPAStateManager owner, ValueMetaData ownerMeta, boolean explicit) Attach.
protected Collection	attachCollection(org.apache.openjpa.kernel.AttachManager manager, Collection orig, OpenJPAStateManager sm, FieldMetaData fmd) Return a new collection with the attached contents of the given one.
protected boolean	attachField(org.apache.openjpa.kernel.AttachManager manager, Object toAttach, StateManagerImpl sm, FieldMetaData fmd, boolean nullLoaded) Attach the given field into the given instance.
protected Map	attachMap(org.apache.openjpa.kernel.AttachManager manager, Map orig, OpenJPAStateManager sm, FieldMetaData fmd) Make sure all the values in the given map are attached.
boolean	beforeRefresh(boolean all) Prepare the instance for refresh
void	clear() Clear any held state.
void	dirty(int field) Mark the given field as dirty.
void	dirty(String field) Make named field dirty.
Object	fetch(int field) Return the externalized value of the field with the given index as an object.
boolean	fetchBoolean(int field) Return the external value of the given field.
boolean	fetchBooleanField(int field) Return the value of the given field.
byte	fetchByte(int field) Return the external value of the given field.
byte	fetchByteField(int field) Return the value of the given field.
char	fetchChar(int field) Return the external value of the given field.
char	fetchCharField(int field) Return the value of the given field.
double	fetchDouble(int field) Return the external value of the given field.
double	fetchDoubleField(int field) Return the value of the given field.
Object	fetchField(int field, boolean transitions) Return the value of the field with the given index as an object.
float	fetchFloat(int field) Return the external value of the given field.
float	fetchFloatField(int field) Return the value of the given field.
Object	fetchInitialField(int field) Return the value of the field at the specified index as of the beginning of the transaction.
int	fetchInt(int field) Return the external value of the given field.
int	fetchIntField(int field) Return the value of the given field.
long	fetchLong(int field) Return the external value of the given field.
long	fetchLongField(int field) Return the value of the given field.
Object	fetchObject(int field) Return the external value of the given field.
Object	fetchObjectField(int field) Return the value of the given field.
Object	fetchObjectId() Return the object id, assigning it if necessary.
short	fetchShort(int field) Return the external value of the given field.
short	fetchShortField(int field) Return the value of the given field.
String	fetchString(int field) Return the external value of the given field.
String	fetchStringField(int field) Return the value of the given field.
StoreContext	getContext() Return the managing context.
protected Object	getDetachedObjectId(org.apache.openjpa.kernel.AttachManager manager, Object toAttach) Return the identity of the given detached instance.
BitSet	getDirty() Return a read-only mask of the indexes of all dirty fields.
BitSet	getFlushed() Return a read-only mask of the indexes of all fields that have been flushed since they were last changed.
Object	getGenericContext() Persistence context.
Object	getId() Return the identifier for this state manager.
Object	getImplData() An object that concrete back ends can associate with each instance.
Object	getImplData(int field) Field-level impl data.
Object	getIntermediate(int field) Use intermediate field data to store intermediate information that might be available before the field is fully loaded.
BitSet	getLoaded() Return a read-only mask of the indexes of all loaded fields.
Object	getLock() The lock object set for this instance.
Object	getManagedInstance() Return the managed instance.
ClassMetaData	getMetaData() Get the metadata for this instance.
Object	getObjectId() Return the instance's object id.
OpenJPAStateManager	getOwner() Return the owning state if this is an embedded instance.
ValueMetaData	getOwnerMetaData() Return the owning value.
Object	getPCPrimaryKey(Object oid, int field) Return the persistence-capable primary key object by extracting the identity value of the related instance stored in the given field from the given object id.
PCState	getPCState() Return the state that this object is in.
PersistenceCapable	getPersistenceCapable() Return the PersistenceCapable instance that provides access to the instance managed by this state manager.
protected Object	getReference(org.apache.openjpa.kernel.AttachManager manager, Object toAttach, OpenJPAStateManager sm, ValueMetaData vmd) Return a managed, possibly hollow reference for the given detached object.
BitSet	getUnloaded(FetchConfiguration fetch) Return a mutable mask of the unloaded fields that need loading based on the given fetch configuration.
Object	getVersion() Returns the optimistic version for this instance.
protected static boolean	ignoreLoaded(FieldMetaData fmd) Ignore if the field is not dirty but loaded
void	initialize(Class forType, PCState state) Initialize the state manager with a new instance of the given persistence capable type and the proper lifecycle state.
boolean	isDefaultValue(int field) Return true if the given field has a default value.
boolean	isDeleted() Whether the instance is deleted in this transaction.
boolean	isDetached() Whether the instance is detached (i.e.
boolean	isDirty() Whether the instance has been modified in this transaction.
boolean	isEmbedded() Return true if this instance has an owner, meaning it is an embedded value.
boolean	isFlushed() Return whether this object has been flushed to the datastore in this transaction.
boolean	isFlushedDirty() Return whether this object has been flushed, then dirtied again.
boolean	isImplDataCacheable() Whether the instance-level impl data can be shared among instances in different contexts if L2 caching is enabled.
boolean	isImplDataCacheable(int field) Whether the field's impl data is loaded and can be shared among instances in different contexts if L2 caching is enabled.
boolean	isNew() Whether the instance is newly-persisted in this transaction.
boolean	isPersistent() Whether the instance is persistent.
boolean	isProvisional() Return whether this object is provisionally persistent.
boolean	isTransactional() Whether the instance is transactional.
boolean	isVersionCheckRequired() Returns true if this state needs to issue a version check at flush time.
boolean	isVersionUpdateRequired() Returns true if this state needs to issue a version update, possibly as a result of being locked.
void	load(FetchConfiguration fetch) Load fetch group fields.
void	lock()
Object	newFieldProxy(int field) Create a new hollow proxy instance for the given field.
Object	newProxy(int field) Create a new hollow proxy instance for the given field.
protected StateManagerImpl	persist(org.apache.openjpa.kernel.AttachManager manager, PersistenceCapable pc, ClassMetaData meta, Object appId, boolean explicit) Return a PNew/PNewProvisional managed object for the given detached instance.
void	providedBooleanField(PersistenceCapable pc, int idx, boolean cur) Provide state callback.
void	providedByteField(PersistenceCapable pc, int idx, byte cur) Provide state callback.
void	providedCharField(PersistenceCapable pc, int idx, char cur) Provide state callback.
void	providedDoubleField(PersistenceCapable pc, int idx, double cur) Provide state callback.
void	providedFloatField(PersistenceCapable pc, int idx, float cur) Provide state callback.
void	providedIntField(PersistenceCapable pc, int idx, int cur) Provide state callback.
void	providedLongField(PersistenceCapable pc, int idx, long cur) Provide state callback.
void	providedObjectField(PersistenceCapable pc, int idx, Object cur) Provide state callback.
void	providedShortField(PersistenceCapable pc, int idx, short cur) Provide state callback.
void	providedStringField(PersistenceCapable pc, int idx, String cur) Provide state callback.
protected void	provideField(Object toAttach, StateManagerImpl sm, int field) Provide the given field into this field manager.
void	proxyDetachedDeserialized(int idx) Proxy the given detached field after deserialization.
void	removed(int field, Object removed, boolean key) Notification that an element has been removed from the given field.
boolean	replaceBooleanField(PersistenceCapable pc, int idx) Replace state callback.
byte	replaceByteField(PersistenceCapable pc, int idx) Replace state callback.
char	replaceCharField(PersistenceCapable pc, int idx) Replace state callback.
double	replaceDoubleField(PersistenceCapable pc, int idx) Replace state callback.
float	replaceFloatField(PersistenceCapable pc, int idx) Replace state callback.
int	replaceIntField(PersistenceCapable pc, int idx) Replace state callback.
long	replaceLongField(PersistenceCapable pc, int idx) Replace state callback.
Object	replaceObjectField(PersistenceCapable pc, int idx) Replace state callback.
short	replaceShortField(PersistenceCapable pc, int idx) Replace state callback.
StateManager	replaceStateManager(StateManager sm) Change state manager.
String	replaceStringField(PersistenceCapable pc, int idx) Replace state callback.
boolean	serializing() Callback to prepare instance for serialization.
Object	setImplData(int field, Object data) Field-level impl data.
Object	setImplData(Object data, boolean cacheable) An object that concrete back ends can associate with each instance.
void	setIntermediate(int field, Object data) Use intermediate field data to store intermediate information that might be available before the field is fully loaded.
void	setLock(Object lock) The lock object set for this instance.
void	setNextVersion(Object version) Set the next version indicator in the datastore pending a successful flush.
void	setObjectId(Object oid) Set the object id for the managed instance.
void	setRemote(int field, Object value) Set the given field to the given value.
void	settingBooleanField(PersistenceCapable pc, int idx, boolean cur, boolean next, int set) Setting state callback.
void	settingByteField(PersistenceCapable pc, int idx, byte cur, byte next, int set) Setting state callback.
void	settingCharField(PersistenceCapable pc, int idx, char cur, char next, int set) Setting state callback.
void	settingDoubleField(PersistenceCapable pc, int idx, double cur, double next, int set) Setting state callback.
void	settingFloatField(PersistenceCapable pc, int idx, float cur, float next, int set) Setting state callback.
void	settingIntField(PersistenceCapable pc, int idx, int cur, int next, int set) Setting state callback.
void	settingLongField(PersistenceCapable pc, int idx, long cur, long next, int set) Setting state callback.
void	settingObjectField(PersistenceCapable pc, int idx, Object cur, Object next, int set) Setting state callback.
void	settingShortField(PersistenceCapable pc, int idx, short cur, short next, int set) Setting state callback.
void	settingStringField(PersistenceCapable pc, int idx, String cur, String next, int set) Setting state callback.
void	setVersion(Object version) Set the version indicator for this instance, as loaded from the data store.
void	store(int field, Object extVal) Set the value of the field with the given index as from the external object value.
void	storeBoolean(int field, boolean extVal) Set the given external value back into the given field.
void	storeBooleanField(int field, boolean curVal) Set the value of the given field.
void	storeByte(int field, byte extVal) Set the given external value back into the given field.
void	storeByteField(int field, byte curVal) Set the value of the given field.
void	storeChar(int field, char extVal) Set the given external value back into the given field.
void	storeCharField(int field, char curVal) Set the value of the given field.
void	storeDouble(int field, double extVal) Set the given external value back into the given field.
void	storeDoubleField(int field, double curVal) Set the value of the given field.
void	storeField(int field, Object value) Set the value of the field with the given index as an object.
void	storeFloat(int field, float extVal) Set the given external value back into the given field.
void	storeFloatField(int field, float curVal) Set the value of the given field.
void	storeInt(int field, int extVal) Set the given external value back into the given field.
void	storeIntField(int field, int curVal) Set the value of the given field.
void	storeLong(int field, long extVal) Set the given external value back into the given field.
void	storeLongField(int field, long curVal) Set the value of the given field.
void	storeObject(int field, Object extVal) Set the given external value back into the given field.
void	storeObjectField(int field, Object curVal) Set the value of the given field.
void	storeShort(int field, short extVal) Set the given external value back into the given field.
void	storeShortField(int field, short curVal) Set the value of the given field.
void	storeString(int field, String extVal) Set the given external value back into the given field.
void	storeStringField(int field, String curVal) Set the value of the given field.
void	unlock()
boolean	writeDetached(ObjectOutput out) Write detached state object and detached state manager to the given stream.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.openjpa.enhance.FieldConsumer

storeBooleanField, storeByteField, storeCharField, storeDoubleField, storeFloatField, storeIntField, storeLongField, storeObjectField, storeShortField, storeStringField

Methods inherited from interface org.apache.openjpa.enhance.FieldSupplier

fetchBooleanField, fetchByteField, fetchCharField, fetchDoubleField, fetchFloatField, fetchIntField, fetchLongField, fetchObjectField, fetchShortField, fetchStringField

Field Detail

dblval

protected double dblval

longval

protected long longval

objval

protected Object objval

field

protected int field

Constructor Detail

DetachedStateManager

public DetachedStateManager(PersistenceCapable pc,
                            OpenJPAStateManager sm,
                            BitSet load,
                            boolean access,
                            boolean multithreaded)

Constructor.

Parameters:

pc - the managed instance

sm - the instance's state manager

load - the set of detached field indexes

access - whether to allow access to unloaded fields

multithreaded - whether the instance will be used concurrently by multiple threads

Method Detail

attach

public Object attach(org.apache.openjpa.kernel.AttachManager manager,
                     Object toAttach,
                     ClassMetaData meta,
                     PersistenceCapable into,
                     OpenJPAStateManager owner,
                     ValueMetaData ownerMeta,
                     boolean explicit)

Attach.

Parameters:

manager - manager holding cache of attached instances

toAttach - detached instance

meta - metadata for the instance being attached

into - instance we're attaching into

owner - state manager for into

ownerMeta - field we traversed to find toAttach

explicit - whether to make new instances explicitly persistent

getDetachedObjectId

protected Object getDetachedObjectId(org.apache.openjpa.kernel.AttachManager manager,
                                     Object toAttach)

Return the identity of the given detached instance.

provideField

protected void provideField(Object toAttach,
                            StateManagerImpl sm,
                            int field)

Provide the given field into this field manager.

ignoreLoaded

protected static boolean ignoreLoaded(FieldMetaData fmd)

Ignore if the field is not dirty but loaded

getGenericContext

public Object getGenericContext()

Description copied from interface: StateManager

Persistence context.

Specified by:

getGenericContext in interface StateManager

getPCPrimaryKey

public Object getPCPrimaryKey(Object oid,
                              int field)

Description copied from interface: StateManager

Return the persistence-capable primary key object by extracting the identity value of the related instance stored in the given field from the given object id.

Specified by:

getPCPrimaryKey in interface StateManager

replaceStateManager

public StateManager replaceStateManager(StateManager sm)

Description copied from interface: StateManager

Change state manager.

Specified by:

replaceStateManager in interface StateManager

getVersion

public Object getVersion()

Description copied from interface: StateManager

Returns the optimistic version for this instance.

Specified by:

getVersion in interface StateManager

Specified by:

getVersion in interface OpenJPAStateManager

setVersion

public void setVersion(Object version)

Description copied from interface: OpenJPAStateManager

Set the version indicator for this instance, as loaded from the data store. This method is used by the StoreManager when loading instance data. On rollback, the version will be rolled back to this value. Version objects should be serializable and should not require vendor-specific classes, because they are transferred to detached objects.

Specified by:

setVersion in interface OpenJPAStateManager

isDirty

public boolean isDirty()

Description copied from interface: StateManager

Whether the instance has been modified in this transaction.

Specified by:

isDirty in interface StateManager

isTransactional

public boolean isTransactional()

Description copied from interface: StateManager

Whether the instance is transactional.

Specified by:

isTransactional in interface StateManager

isPersistent

public boolean isPersistent()

Description copied from interface: StateManager

Whether the instance is persistent.

Specified by:

isPersistent in interface StateManager

isNew

public boolean isNew()

Description copied from interface: StateManager

Whether the instance is newly-persisted in this transaction.

Specified by:

isNew in interface StateManager

isDeleted

public boolean isDeleted()

Description copied from interface: StateManager

Whether the instance is deleted in this transaction.

Specified by:

isDeleted in interface StateManager

isDetached

public boolean isDetached()

Description copied from interface: StateManager

Whether the instance is detached (i.e. this manager is a detached state manager)

Specified by:

isDetached in interface StateManager

isVersionUpdateRequired

public boolean isVersionUpdateRequired()

Description copied from interface: OpenJPAStateManager

Returns true if this state needs to issue a version update, possibly as a result of being locked.

Specified by:

isVersionUpdateRequired in interface OpenJPAStateManager

isVersionCheckRequired

public boolean isVersionCheckRequired()

Description copied from interface: OpenJPAStateManager

Returns true if this state needs to issue a version check at flush time.

Specified by:

isVersionCheckRequired in interface OpenJPAStateManager

dirty

public void dirty(String field)

Description copied from interface: StateManager

Make named field dirty.

Specified by:

dirty in interface StateManager

fetchObjectId

public Object fetchObjectId()

Description copied from interface: StateManager

Return the object id, assigning it if necessary.

Specified by:

fetchObjectId in interface StateManager

accessingField

public void accessingField(int idx)

Description copied from interface: StateManager

Field access callback.

Specified by:

accessingField in interface StateManager

serializing

public boolean serializing()

Description copied from interface: StateManager

Callback to prepare instance for serialization.

Specified by:

serializing in interface StateManager

Returns:

true to null detached state after serialize

writeDetached

public boolean writeDetached(ObjectOutput out)
                      throws IOException

Description copied from interface: StateManager

Write detached state object and detached state manager to the given stream.

Specified by:

writeDetached in interface StateManager

Returns:

true if managed fields also written to stream

Throws:

IOException

proxyDetachedDeserialized

public void proxyDetachedDeserialized(int idx)

Description copied from interface: StateManager

Proxy the given detached field after deserialization.

Specified by:

proxyDetachedDeserialized in interface StateManager

settingBooleanField

public void settingBooleanField(PersistenceCapable pc,
                                int idx,
                                boolean cur,
                                boolean next,
                                int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingBooleanField in interface StateManager

settingCharField

public void settingCharField(PersistenceCapable pc,
                             int idx,
                             char cur,
                             char next,
                             int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingCharField in interface StateManager

settingByteField

public void settingByteField(PersistenceCapable pc,
                             int idx,
                             byte cur,
                             byte next,
                             int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingByteField in interface StateManager

settingShortField

public void settingShortField(PersistenceCapable pc,
                              int idx,
                              short cur,
                              short next,
                              int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingShortField in interface StateManager

settingIntField

public void settingIntField(PersistenceCapable pc,
                            int idx,
                            int cur,
                            int next,
                            int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingIntField in interface StateManager

settingLongField

public void settingLongField(PersistenceCapable pc,
                             int idx,
                             long cur,
                             long next,
                             int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingLongField in interface StateManager

settingFloatField

public void settingFloatField(PersistenceCapable pc,
                              int idx,
                              float cur,
                              float next,
                              int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingFloatField in interface StateManager

settingDoubleField

public void settingDoubleField(PersistenceCapable pc,
                               int idx,
                               double cur,
                               double next,
                               int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingDoubleField in interface StateManager

settingStringField

public void settingStringField(PersistenceCapable pc,
                               int idx,
                               String cur,
                               String next,
                               int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingStringField in interface StateManager

settingObjectField

public void settingObjectField(PersistenceCapable pc,
                               int idx,
                               Object cur,
                               Object next,
                               int set)

Description copied from interface: StateManager

Setting state callback.

Specified by:

settingObjectField in interface StateManager

providedBooleanField

public void providedBooleanField(PersistenceCapable pc,
                                 int idx,
                                 boolean cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedBooleanField in interface StateManager

providedCharField

public void providedCharField(PersistenceCapable pc,
                              int idx,
                              char cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedCharField in interface StateManager

providedByteField

public void providedByteField(PersistenceCapable pc,
                              int idx,
                              byte cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedByteField in interface StateManager

providedShortField

public void providedShortField(PersistenceCapable pc,
                               int idx,
                               short cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedShortField in interface StateManager

providedIntField

public void providedIntField(PersistenceCapable pc,
                             int idx,
                             int cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedIntField in interface StateManager

providedLongField

public void providedLongField(PersistenceCapable pc,
                              int idx,
                              long cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedLongField in interface StateManager

providedFloatField

public void providedFloatField(PersistenceCapable pc,
                               int idx,
                               float cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedFloatField in interface StateManager

providedDoubleField

public void providedDoubleField(PersistenceCapable pc,
                                int idx,
                                double cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedDoubleField in interface StateManager

providedStringField

public void providedStringField(PersistenceCapable pc,
                                int idx,
                                String cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedStringField in interface StateManager

providedObjectField

public void providedObjectField(PersistenceCapable pc,
                                int idx,
                                Object cur)

Description copied from interface: StateManager

Provide state callback.

Specified by:

providedObjectField in interface StateManager

replaceBooleanField

public boolean replaceBooleanField(PersistenceCapable pc,
                                   int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceBooleanField in interface StateManager

replaceCharField

public char replaceCharField(PersistenceCapable pc,
                             int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceCharField in interface StateManager

replaceByteField

public byte replaceByteField(PersistenceCapable pc,
                             int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceByteField in interface StateManager

replaceShortField

public short replaceShortField(PersistenceCapable pc,
                               int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceShortField in interface StateManager

replaceIntField

public int replaceIntField(PersistenceCapable pc,
                           int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceIntField in interface StateManager

replaceLongField

public long replaceLongField(PersistenceCapable pc,
                             int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceLongField in interface StateManager

replaceFloatField

public float replaceFloatField(PersistenceCapable pc,
                               int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceFloatField in interface StateManager

replaceDoubleField

public double replaceDoubleField(PersistenceCapable pc,
                                 int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceDoubleField in interface StateManager

replaceStringField

public String replaceStringField(PersistenceCapable pc,
                                 int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceStringField in interface StateManager

replaceObjectField

public Object replaceObjectField(PersistenceCapable pc,
                                 int idx)

Description copied from interface: StateManager

Replace state callback.

Specified by:

replaceObjectField in interface StateManager

initialize

public void initialize(Class forType,
                       PCState state)

Description copied from interface: OpenJPAStateManager

Initialize the state manager with a new instance of the given persistence capable type and the proper lifecycle state. Invoking this method may change the object id and metadata for the state manager, as the concrete type specified in the parameter may be a subclass of the expected type.

Specified by:

initialize in interface OpenJPAStateManager

Parameters:

forType - the type for which to create a new instance

state - the initial state to which to set the instance

load

public void load(FetchConfiguration fetch)

Description copied from interface: OpenJPAStateManager

Load fetch group fields.

Specified by:

load in interface OpenJPAStateManager

getManagedInstance

public Object getManagedInstance()

Description copied from interface: OpenJPAStateManager

Return the managed instance.

Specified by:

getManagedInstance in interface OpenJPAStateManager

getPersistenceCapable

public PersistenceCapable getPersistenceCapable()

Description copied from interface: OpenJPAStateManager

Return the PersistenceCapable instance that provides access to the instance managed by this state manager. May be a proxy around the actual managed instance.

Specified by:

getPersistenceCapable in interface OpenJPAStateManager

getMetaData

public ClassMetaData getMetaData()

Description copied from interface: OpenJPAStateManager

Get the metadata for this instance.

Specified by:

getMetaData in interface OpenJPAStateManager

getOwner

public OpenJPAStateManager getOwner()

Description copied from interface: OpenJPAStateManager

Return the owning state if this is an embedded instance.

Specified by:

getOwner in interface OpenJPAStateManager

getOwnerMetaData

public ValueMetaData getOwnerMetaData()

Description copied from interface: OpenJPAStateManager

Return the owning value.

Specified by:

getOwnerMetaData in interface OpenJPAStateManager

isEmbedded

public boolean isEmbedded()

Description copied from interface: OpenJPAStateManager

Return true if this instance has an owner, meaning it is an embedded value.

Specified by:

isEmbedded in interface OpenJPAStateManager

isFlushed

public boolean isFlushed()

Description copied from interface: OpenJPAStateManager

Return whether this object has been flushed to the datastore in this transaction.

Specified by:

isFlushed in interface OpenJPAStateManager

isFlushedDirty

public boolean isFlushedDirty()

Description copied from interface: OpenJPAStateManager

Return whether this object has been flushed, then dirtied again.

Specified by:

isFlushedDirty in interface OpenJPAStateManager

isProvisional

public boolean isProvisional()

Description copied from interface: OpenJPAStateManager

Return whether this object is provisionally persistent.

Specified by:

isProvisional in interface OpenJPAStateManager

getLoaded

public BitSet getLoaded()

Description copied from interface: OpenJPAStateManager

Return a read-only mask of the indexes of all loaded fields.

Specified by:

getLoaded in interface OpenJPAStateManager

getDirty

public BitSet getDirty()

Description copied from interface: OpenJPAStateManager

Return a read-only mask of the indexes of all dirty fields.

Specified by:

getDirty in interface OpenJPAStateManager

getFlushed

public BitSet getFlushed()

Description copied from interface: OpenJPAStateManager

Return a read-only mask of the indexes of all fields that have been flushed since they were last changed.

Specified by:

getFlushed in interface OpenJPAStateManager

getUnloaded

public BitSet getUnloaded(FetchConfiguration fetch)

Description copied from interface: OpenJPAStateManager

Return a mutable mask of the unloaded fields that need loading based on the given fetch configuration. Pass in null to retrieve all unloaded fields.

Specified by:

getUnloaded in interface OpenJPAStateManager

newProxy

public Object newProxy(int field)

Description copied from interface: OpenJPAStateManager

Create a new hollow proxy instance for the given field. In cases where the field externalizes to an SCO but is declared something else, the returned object may not implement Proxy. In all other cases, this method delegates to the system ProxyManager with the correct field information. The returned proxy's owner is unset so that modifications to the proxy will not be tracked while its state is initialized. Calling OpenJPAStateManager.storeField(int, java.lang.Object) or OpenJPAStateManager.store(int, java.lang.Object) will set the proxy's owner automatically.

Specified by:

newProxy in interface OpenJPAStateManager

newFieldProxy

public Object newFieldProxy(int field)

Description copied from interface: OpenJPAStateManager

Create a new hollow proxy instance for the given field. This method differs from OpenJPAStateManager.newProxy(int) in that it returns a proxy for the field's declared type, not its externalized type.

Specified by:

newFieldProxy in interface OpenJPAStateManager

See Also:

OpenJPAStateManager.newProxy(int)

isDefaultValue

public boolean isDefaultValue(int field)

Description copied from interface: OpenJPAStateManager

Return true if the given field has a default value.

Specified by:

isDefaultValue in interface OpenJPAStateManager

getContext

public StoreContext getContext()

Description copied from interface: OpenJPAStateManager

Return the managing context.

Specified by:

getContext in interface OpenJPAStateManager

getPCState

public PCState getPCState()

Description copied from interface: OpenJPAStateManager

Return the state that this object is in.

Specified by:

getPCState in interface OpenJPAStateManager

getObjectId

public Object getObjectId()

Description copied from interface: OpenJPAStateManager

Return the instance's object id. This method will return null if no oid has been assigned. Oids are assigned to newly-persisted instances when the user first asks for it, or on flush.

Specified by:

getObjectId in interface OpenJPAStateManager

setObjectId

public void setObjectId(Object oid)

Description copied from interface: OpenJPAStateManager

Set the object id for the managed instance. Some back ends may not be able to assign a permanent oid until flush. Do not call this method on application identity instances; changing the primary key fields of application identity objects through the storeXXXField methods will automatically change the oid.

Specified by:

setObjectId in interface OpenJPAStateManager

assignObjectId

public boolean assignObjectId(boolean flush)

Description copied from interface: OpenJPAStateManager

Ask the store manager to assign a permanent oid to this new instance.

Specified by:

assignObjectId in interface OpenJPAStateManager

Parameters:

flush - if true, flush if necessary to get a permanent oid; if false, the oid may be left unassigned

Returns:

true if an oid assigned, false otherwise

getId

public Object getId()

Description copied from interface: OpenJPAStateManager

Return the identifier for this state manager. This may return a temporary identifier for new unflushed instances that have not been assigned an object id, or for non-persistent or embedded instances. For all other instances this method is the same as OpenJPAStateManager.getObjectId().

Specified by:

getId in interface OpenJPAStateManager

getLock

public Object getLock()

Description copied from interface: OpenJPAStateManager

The lock object set for this instance. This object is generally managed by the system lock manager.

Specified by:

getLock in interface OpenJPAStateManager

setLock

public void setLock(Object lock)

Description copied from interface: OpenJPAStateManager

The lock object set for this instance. This object is generally managed by the system lock manager.

Specified by:

setLock in interface OpenJPAStateManager

setNextVersion

public void setNextVersion(Object version)

Description copied from interface: OpenJPAStateManager

Set the next version indicator in the datastore pending a successful flush. The StoreManager uses this method during flush.

Specified by:

setNextVersion in interface OpenJPAStateManager

getImplData

public Object getImplData()

Description copied from interface: OpenJPAStateManager

An object that concrete back ends can associate with each instance. This object is not used or modified in any way by the generic persistence layer.

Specified by:

getImplData in interface OpenJPAStateManager

setImplData

public Object setImplData(Object data,
                          boolean cacheable)

Description copied from interface: OpenJPAStateManager

An object that concrete back ends can associate with each instance. This object is not used or modified in any way by the generic persistence layer.

Specified by:

setImplData in interface OpenJPAStateManager

cacheable - whether the impl data can be shared among instances in different contexts if L2 caching is enabled

Returns:

the previous impl data value, if any

isImplDataCacheable

public boolean isImplDataCacheable()

Description copied from interface: OpenJPAStateManager

Whether the instance-level impl data can be shared among instances in different contexts if L2 caching is enabled.

Specified by:

isImplDataCacheable in interface OpenJPAStateManager

getImplData

public Object getImplData(int field)

Description copied from interface: OpenJPAStateManager

Field-level impl data. Field-level data only applies to loaded fields, and is cleared when the field is cleared.

Specified by:

getImplData in interface OpenJPAStateManager

setImplData

public Object setImplData(int field,
                          Object data)

Description copied from interface: OpenJPAStateManager

Field-level impl data. Field-level data only applies to loaded fields, and is cleared when the field is cleared. Whether the data is cached across instances depends on the corresponding field metadata's response to FieldMetaData.usesImplData().

Specified by:

setImplData in interface OpenJPAStateManager

Returns:

the previous impl data value, if any

isImplDataCacheable

public boolean isImplDataCacheable(int field)

Description copied from interface: OpenJPAStateManager

Whether the field's impl data is loaded and can be shared among instances in different contexts if L2 caching is enabled.

Specified by:

isImplDataCacheable in interface OpenJPAStateManager

getIntermediate

public Object getIntermediate(int field)

Description copied from interface: OpenJPAStateManager

Use intermediate field data to store intermediate information that might be available before the field is fully loaded. The system will automatically clear this data when the field gets loaded. This data should be cacheable; the datastore cache will attempt to cache it if the field value is not available.

Specified by:

getIntermediate in interface OpenJPAStateManager

setIntermediate

public void setIntermediate(int field,
                            Object data)

Description copied from interface: OpenJPAStateManager

Use intermediate field data to store intermediate information that might be available before the field is fully loaded. The system will automatically clear this data when the field gets loaded. This data should be cacheable; the datastore cache will attempt to cache it if the field value is not available.

Specified by:

setIntermediate in interface OpenJPAStateManager

removed

public void removed(int field,
                    Object removed,
                    boolean key)

Description copied from interface: OpenJPAStateManager

Notification that an element has been removed from the given field.

Specified by:

removed in interface OpenJPAStateManager

beforeRefresh

public boolean beforeRefresh(boolean all)

Description copied from interface: OpenJPAStateManager

Prepare the instance for refresh

Specified by:

beforeRefresh in interface OpenJPAStateManager

Parameters:

all - true if this instance is one of a collection of objects being refreshed

Returns:

true if the object needs a refresh, false otherwise

See Also:

Broker.refresh(java.lang.Object, org.apache.openjpa.kernel.OpCallbacks)

dirty

public void dirty(int field)

Description copied from interface: OpenJPAStateManager

Mark the given field as dirty.

Specified by:

dirty in interface OpenJPAStateManager

storeBoolean

public void storeBoolean(int field,
                         boolean extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeBoolean in interface OpenJPAStateManager

storeByte

public void storeByte(int field,
                      byte extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeByte in interface OpenJPAStateManager

storeChar

public void storeChar(int field,
                      char extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeChar in interface OpenJPAStateManager

storeInt

public void storeInt(int field,
                     int extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeInt in interface OpenJPAStateManager

storeShort

public void storeShort(int field,
                       short extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeShort in interface OpenJPAStateManager

storeLong

public void storeLong(int field,
                      long extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeLong in interface OpenJPAStateManager

storeFloat

public void storeFloat(int field,
                       float extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeFloat in interface OpenJPAStateManager

storeDouble

public void storeDouble(int field,
                        double extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeDouble in interface OpenJPAStateManager

storeString

public void storeString(int field,
                        String extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeString in interface OpenJPAStateManager

storeObject

public void storeObject(int field,
                        Object extVal)

Description copied from interface: OpenJPAStateManager

Set the given external value back into the given field.

Specified by:

storeObject in interface OpenJPAStateManager

store

public void store(int field,
                  Object extVal)

Description copied from interface: OpenJPAStateManager

Set the value of the field with the given index as from the external object value. If there is no externalizer, this is equivalent to OpenJPAStateManager.storeField(int, java.lang.Object).

Specified by:

store in interface OpenJPAStateManager

storeField

public void storeField(int field,
                       Object value)

Description copied from interface: OpenJPAStateManager

Set the value of the field with the given index as an object.

Specified by:

storeField in interface OpenJPAStateManager

fetchBoolean

public boolean fetchBoolean(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchBoolean in interface OpenJPAStateManager

fetchByte

public byte fetchByte(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchByte in interface OpenJPAStateManager

fetchChar

public char fetchChar(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchChar in interface OpenJPAStateManager

fetchShort

public short fetchShort(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchShort in interface OpenJPAStateManager

fetchInt

public int fetchInt(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchInt in interface OpenJPAStateManager

fetchLong

public long fetchLong(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchLong in interface OpenJPAStateManager

fetchFloat

public float fetchFloat(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchFloat in interface OpenJPAStateManager

fetchDouble

public double fetchDouble(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchDouble in interface OpenJPAStateManager

fetchString

public String fetchString(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchString in interface OpenJPAStateManager

fetchObject

public Object fetchObject(int field)

Description copied from interface: OpenJPAStateManager

Return the external value of the given field.

Specified by:

fetchObject in interface OpenJPAStateManager

fetch

public Object fetch(int field)

Description copied from interface: OpenJPAStateManager

Return the externalized value of the field with the given index as an object. If there is no externalizer, this is equivalent to OpenJPAStateManager.fetchField(int, boolean).

Specified by:

fetch in interface OpenJPAStateManager

fetchField

public Object fetchField(int field,
                         boolean transitions)

Description copied from interface: OpenJPAStateManager

Return the value of the field with the given index as an object.

Specified by:

fetchField in interface OpenJPAStateManager

transitions - if true, this method will cause state transitions to occur as if the field were accessed normally

fetchInitialField

public Object fetchInitialField(int field)

Description copied from interface: OpenJPAStateManager

Return the value of the field at the specified index as of the beginning of the transaction.

Specified by:

fetchInitialField in interface OpenJPAStateManager

setRemote

public void setRemote(int field,
                      Object value)

Description copied from interface: OpenJPAStateManager

Set the given field to the given value. Make the field dirty as if user code set it. Do not delete dependent objects in the field's current value. This method is invoked by the remote package to synch a server-side state manager with remote changes. We do not need to delete dependent instances because they will have been deleted when the field changed on the client side, and those client-side deletes will be transmitted independently.

Specified by:

setRemote in interface OpenJPAStateManager

lock

public void lock()

unlock

public void unlock()

persist

protected StateManagerImpl persist(org.apache.openjpa.kernel.AttachManager manager,
                                   PersistenceCapable pc,
                                   ClassMetaData meta,
                                   Object appId,
                                   boolean explicit)

Return a PNew/PNewProvisional managed object for the given detached instance.

attachField

protected boolean attachField(org.apache.openjpa.kernel.AttachManager manager,
                              Object toAttach,
                              StateManagerImpl sm,
                              FieldMetaData fmd,
                              boolean nullLoaded)

Attach the given field into the given instance.

Parameters:

toAttach - the detached persistent instance

sm - state manager for the managed instance we're copying into; toAttach also uses this state manager

fmd - metadata on the field we're copying

nullLoaded - if false, nulls will be considered unloaded and will not be attached

getReference

protected Object getReference(org.apache.openjpa.kernel.AttachManager manager,
                              Object toAttach,
                              OpenJPAStateManager sm,
                              ValueMetaData vmd)

Return a managed, possibly hollow reference for the given detached object.

attachCollection

protected Collection attachCollection(org.apache.openjpa.kernel.AttachManager manager,
                                      Collection orig,
                                      OpenJPAStateManager sm,
                                      FieldMetaData fmd)

Return a new collection with the attached contents of the given one.

attachMap

protected Map attachMap(org.apache.openjpa.kernel.AttachManager manager,
                        Map orig,
                        OpenJPAStateManager sm,
                        FieldMetaData fmd)

Make sure all the values in the given map are attached.

fetchBooleanField

public boolean fetchBooleanField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchBooleanField in interface FieldSupplier

fetchByteField

public byte fetchByteField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchByteField in interface FieldSupplier

fetchCharField

public char fetchCharField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchCharField in interface FieldSupplier

fetchDoubleField

public double fetchDoubleField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchDoubleField in interface FieldSupplier

fetchFloatField

public float fetchFloatField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchFloatField in interface FieldSupplier

fetchIntField

public int fetchIntField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchIntField in interface FieldSupplier

fetchLongField

public long fetchLongField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchLongField in interface FieldSupplier

fetchObjectField

public Object fetchObjectField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchObjectField in interface FieldSupplier

fetchShortField

public short fetchShortField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchShortField in interface FieldSupplier

fetchStringField

public String fetchStringField(int field)

Description copied from interface: FieldSupplier

Return the value of the given field.

Specified by:

fetchStringField in interface FieldSupplier

storeBooleanField

public void storeBooleanField(int field,
                              boolean curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeBooleanField in interface FieldConsumer

storeByteField

public void storeByteField(int field,
                           byte curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeByteField in interface FieldConsumer

storeCharField

public void storeCharField(int field,
                           char curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeCharField in interface FieldConsumer

storeDoubleField

public void storeDoubleField(int field,
                             double curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeDoubleField in interface FieldConsumer

storeFloatField

public void storeFloatField(int field,
                            float curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeFloatField in interface FieldConsumer

storeIntField

public void storeIntField(int field,
                          int curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeIntField in interface FieldConsumer

storeLongField

public void storeLongField(int field,
                           long curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeLongField in interface FieldConsumer

storeObjectField

public void storeObjectField(int field,
                             Object curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeObjectField in interface FieldConsumer

storeShortField

public void storeShortField(int field,
                            short curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeShortField in interface FieldConsumer

storeStringField

public void storeStringField(int field,
                             String curVal)

Description copied from interface: FieldConsumer

Set the value of the given field.

Specified by:

storeStringField in interface FieldConsumer

clear

public void clear()

Clear any held state. Fields are also cleared automatically when fetched.