TransactionStore.Transaction

A transaction.

Methods
void	checkNotClosed() Check whether this transaction is open or prepared.
void	checkNotClosed() Check whether this transaction is open or prepared.
void	commit() Commit the transaction.
void	commit() Commit the transaction. Afterwards, this transaction is closed.
Iterator	getChanges(long savepointId) Get the list of changes, starting with the latest change, up to the given savepoint (in reverse order than they occurred).
Iterator	getChanges(long savepointId) Get the list of changes, starting with the latest change, up to the given savepoint (in reverse order than they occurred). The value of the change is the value before the change was applied. Parameters: savepointId - the savepoint id, 0 meaning the beginning of the transaction Returns: the changes
int	getId()
int	getId()
String	getName()
String	getName()
int	getStatus()
int	getStatus()
void	log(int mapId, Object key, Object oldValue) Add a log entry.
void	log(int mapId, Object key, Object oldValue) Add a log entry. Parameters: mapId - the map id key - the key oldValue - the old value
void	logUndo() Remove the last log entry.
void	logUndo() Remove the last log entry.
TransactionStore.TransactionMap	openMap(String name) Open a data map.
TransactionStore.TransactionMap	openMap(String name) Open a data map. Parameters: name - the name of the map Returns: the transaction map
TransactionStore.TransactionMap	openMap(String name, DataType keyType, DataType valueType) Open the map to store the data.
TransactionStore.TransactionMap	openMap(String name, DataType keyType, DataType valueType) Open the map to store the data. Parameters: name - the name of the map keyType - the key data type valueType - the value data type Returns: the transaction map
TransactionStore.TransactionMap	openMap(MVMap map) Open the transactional version of the given map.
TransactionStore.TransactionMap	openMap(MVMap map) Open the transactional version of the given map. Parameters: map - the base map Returns: the transactional map
void	prepare() Prepare the transaction.
void	prepare() Prepare the transaction. Afterwards, the transaction can only be committed or rolled back.
void	removeMap(TransactionStore.TransactionMap map) Remove the map.
void	removeMap(TransactionStore.TransactionMap map) Remove the map. Parameters: map - the map
void	rollback() Roll the transaction back.
void	rollback() Roll the transaction back. Afterwards, this transaction is closed.
void	rollbackToSavepoint(long savepointId) Roll back to the given savepoint.
void	rollbackToSavepoint(long savepointId) Roll back to the given savepoint. This is only allowed if the transaction is open. Parameters: savepointId - the savepoint id
void	setName(String name)
void	setName(String name)
long	setSavepoint() Create a new savepoint.
long	setSavepoint() Create a new savepoint. Returns: the savepoint id
void	setStatus(int status)
void	setStatus(int status)
String	toString()
String	toString()

Fields
static int	STATUS_CLOSED = 0
static int	STATUS_COMMITTING = 3
static int	STATUS_OPEN = 1
static int	STATUS_PREPARED = 2
static long	logId
static TransactionStore	store
static int	transactionId

STATUS_CLOSED = 0

The status of a closed transaction (committed or rolled back).

STATUS_OPEN = 1

The status of an open transaction.

STATUS_PREPARED = 2

The status of a prepared transaction.

STATUS_COMMITTING = 3

The status of a transaction that is being committed, but possibly not yet finished. A transactions can go into this state when the store is closed while the transaction is committing. When opening a store, such transactions should be committed.

logId

The log id of the last entry in the undo log map.

store

The transaction store.

transactionId

The transaction id.