Package org.apache.openjpa.event

Class TransactionEvent

java.lang.Object

java.util.EventObject

org.apache.openjpa.event.TransactionEvent

All Implemented Interfaces:

Serializable

public class TransactionEvent
extends EventObject

A transactional event. The event source is the Broker whose transaction state changed.

Since:

0.3.0

Author:

Abe White

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	AFTER_BEGIN	Event type signifying that a transaction has just begun.
static final int	AFTER_COMMIT	Event type signifying that the transaction has committed.
static final int	AFTER_COMMIT_COMPLETE	Event type signifying that the commit has completey ended and the transaction is no longer active.
static final int	AFTER_FLUSH	Event type signifying that changes have been flushed to the datastore.
static final int	AFTER_ROLLBACK	Event type signifying that the transaction was rolled back.
static final int	AFTER_ROLLBACK_COMPLETE	Event type signifying that the rollback has completey ended and the transaction is no longer active.
static final int	AFTER_STATE_TRANSITIONS	Event type signifying that all state transitions have been made.
static final int	BEFORE_COMMIT	Event type signifying that the transaction is about to be committed.
static final int	BEFORE_FLUSH	Event type signifying that changes are about to be flushed to the datastore.

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
TransactionEvent(Broker broker, int type, Collection objs, Collection addClss, Collection updateClss, Collection deleteClss)	Constructor.

Method Summary

Modifier and Type	Method	Description
Collection	getDeletedTypes()	Return the unmodifiable the set of classes of persistence capable objects that were deleted in the transaction.
Collection	getPersistedTypes()	Return the unmodifiable the set of classes of persistence capable objects that were created in the transaction.
Collection	getTransactionalObjects()	Return the unmodifiable set of persistence capable objects participating in the transaction.
int	getType()	Return the type of event.
Collection	getUpdatedTypes()	Return the unmodifiable the set of classes of persistence capable objects that were modified in the transaction.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Details

AFTER_BEGIN

public static final int AFTER_BEGIN

Event type signifying that a transaction has just begun.

See Also:

• Constant Field Values

BEFORE_FLUSH

public static final int BEFORE_FLUSH

Event type signifying that changes are about to be flushed to the datastore. This does not necessarily mean that a commit is taking place.

See Also:

• Constant Field Values

AFTER_FLUSH

public static final int AFTER_FLUSH

Event type signifying that changes have been flushed to the datastore. This event is only fired if flushing is successful.

See Also:

• Constant Field Values

BEFORE_COMMIT

public static final int BEFORE_COMMIT

Event type signifying that the transaction is about to be committed. This will be fired before the BEFORE_FLUSH event for the transaction, so that you can differentiate between flushes for commits and other flushes.

See Also:

• Constant Field Values

AFTER_COMMIT

public static final int AFTER_COMMIT

Event type signifying that the transaction has committed.

See Also:

• Constant Field Values

AFTER_ROLLBACK

public static final int AFTER_ROLLBACK

Event type signifying that the transaction was rolled back.

See Also:

• Constant Field Values

AFTER_STATE_TRANSITIONS

public static final int AFTER_STATE_TRANSITIONS

Event type signifying that all state transitions have been made.

See Also:

• Constant Field Values

AFTER_COMMIT_COMPLETE

public static final int AFTER_COMMIT_COMPLETE

Event type signifying that the commit has completey ended and the transaction is no longer active.

See Also:

• Constant Field Values

AFTER_ROLLBACK_COMPLETE

public static final int AFTER_ROLLBACK_COMPLETE

Event type signifying that the rollback has completey ended and the transaction is no longer active.

See Also:

• Constant Field Values

Constructor Details

TransactionEvent

public TransactionEvent(Broker broker,
 int type,
 Collection objs,
 Collection addClss,
 Collection updateClss,
 Collection deleteClss)

Constructor.

Parameters:

broker - the event source

type - the event type

objs - transactional objects

addClss - classes of added instances

updateClss - classes of updated instances

deleteClss - classes of deleted instances

Method Details

getType

public int getType()

Return the type of event.

getTransactionalObjects

public Collection getTransactionalObjects()

Return the unmodifiable set of persistence capable objects participating in the transaction. This set will contain all dirty objects, but may not contain clean objects.

getPersistedTypes

public Collection getPersistedTypes()

Return the unmodifiable the set of classes of persistence capable objects that were created in the transaction.

getUpdatedTypes

public Collection getUpdatedTypes()

Return the unmodifiable the set of classes of persistence capable objects that were modified in the transaction.

getDeletedTypes

public Collection getDeletedTypes()

Return the unmodifiable the set of classes of persistence capable objects that were deleted in the transaction.