Uses of Class
com.sleepycat.je.txn.Locker

Packages that use Locker

Package	Description
com.sleepycat.je	Foundation for creating environments, databases and transactions; provides cursor based data access.
com.sleepycat.je.cleaner	INTERNAL: disk garbage collection.
com.sleepycat.je.dbi	INTERNAL: Underlying XxxImpl classes for Environment, Database and Cursor, plus other misc classes (originally, dbi meant "db internal interface").
com.sleepycat.je.rep	Berkeley DB Java Edition High Availability (JE HA) enables replication of JE environments.
com.sleepycat.je.rep.impl	INTERNAL: Top level HA implementation classes.
com.sleepycat.je.rep.txn	INTERNAL: HA Txn/Locker subclasses for enforcing consistency and durability constraints.
com.sleepycat.je.tree	INTERNAL: Btree data structure (the JE main cache), including persistent nodes classes, and Btree access methods.
com.sleepycat.je.txn	INTERNAL: Transaction management and locking (concurrency control).

Uses of Locker in com.sleepycat.je

Methods in com.sleepycat.je that return Locker

Modifier and Type	Method and Description
static Locker	DbInternal.getLocker(Transaction txn) Proxy to Transaction.getLocker()

Methods in com.sleepycat.je with parameters of type Locker

Modifier and Type	Method and Description
static Cursor	DbInternal.makeCursor(DatabaseImpl databaseImpl, Locker locker, CursorConfig cursorConfig) Create a Cursor for internal use from a DatabaseImpl.
static Cursor	DbInternal.makeCursor(DatabaseImpl databaseImpl, Locker locker, CursorConfig cursorConfig, boolean retainNonTxnLocks) Create a Cursor for internal use from a DatabaseImpl, specifying retainNonTxnLocks.
static Cursor	DbInternal.makeCursor(Database dbHandle, Locker locker, CursorConfig cursorConfig) Create a Cursor from a DatabaseHandle.
static Cursor	DbInternal.makeCursor(Database dbHandle, Locker locker, CursorConfig cursorConfig, boolean retainNonTxnLocks)
static boolean	DbInternal.readPrimaryAfterGet(Cursor cursor, Database priDb, DatabaseEntry key, DatabaseEntry pKey, DatabaseEntry data, LockMode lockMode, boolean secDirtyRead, boolean lockPrimaryOnly, boolean allowNoData, Locker locker, SecondaryDatabase secDb, SecondaryAssociation secAssoc) Proxy to Cursor.readPrimaryAfterGet

Constructors in com.sleepycat.je with parameters of type Locker

Constructor and Description
DeadlockException(Locker locker, String message) For internal use only.
DeleteConstraintException(Locker locker, String message, String secDbName, String priDbName, DatabaseEntry secKey, DatabaseEntry priKey, long priLsn, long expirationTime, ExtinctionFilter.ExtinctionStatus extinctionStatus) For internal use only.
DiskLimitException(Locker locker, String message) For internal use only.
ForeignConstraintException(Locker locker, String message, String secDbName, String priDbName, DatabaseEntry secKey, DatabaseEntry priKey, long priLsn, long expirationTime, ExtinctionFilter.ExtinctionStatus extinctionStatus) For internal use only.
LockConflictException(Locker locker, String message) For internal use only.
LockConflictException(Locker locker, String message, Throwable cause) For internal use only.
LockNotAvailableException(Locker locker, String message) For internal use only.
LockNotGrantedException(Locker locker, String message) Deprecated. For internal use only.
LockTimeoutException(Locker locker, String message) For internal use only.
OperationFailureException(Locker locker, boolean abortOnly, String message, Throwable cause) For internal use only.
SecondaryConstraintException(Locker locker, String message, String secDbName, String priDbName, DatabaseEntry secKey, DatabaseEntry priKey, long priLsn, long expirationTime, ExtinctionFilter.ExtinctionStatus extinctionStatus) For internal use only.
SecondaryIntegrityException(Database secDb, Locker locker, String message, String secDbName, String priDbName, DatabaseEntry secKey, DatabaseEntry priKey, long priLsn, long expirationTime, ExtinctionFilter.ExtinctionStatus extinctionStatus) For internal use only.
SecondaryReferenceException(Locker locker, String message, String secDbName, String priDbName, DatabaseEntry secKey, DatabaseEntry priKey, long priLsn, long expirationTime, ExtinctionFilter.ExtinctionStatus extinctionStatus) For internal use only.
TransactionTimeoutException(Locker locker, String message) For internal use only.
UniqueConstraintException(Locker locker, String message, String secDbName, String priDbName, DatabaseEntry secKey, DatabaseEntry priKey, long priLsn, long expirationTime, ExtinctionFilter.ExtinctionStatus extinctionStatus) For internal use only.
XAFailureException(Locker locker) For internal use only.

Uses of Locker in com.sleepycat.je.cleaner

Methods in com.sleepycat.je.cleaner with parameters of type Locker

Modifier and Type	Method and Description
long	ExtinctionScanner.discardExtinctRecords(@NonNull Locker locker, @NonNull Set<String> dbNames, @Nullable DatabaseEntry beginKey, @Nullable DatabaseEntry endKey, @Nullable ScanFilter filter, @NonNull String label) Inserts the scan record in the DB and queues the scan for execution.

Uses of Locker in com.sleepycat.je.dbi

Methods in com.sleepycat.je.dbi that return Locker

Modifier and Type	Method and Description
Locker	CursorImpl.getLocker()

Methods in com.sleepycat.je.dbi with parameters of type Locker

Modifier and Type	Method and Description
DatabaseImpl	DbTree.createDb(Locker locker, String databaseName, DatabaseConfig dbConfig, HandleLocker handleLocker) Creates a new database object given a database name.
DatabaseImpl	DbTree.createInternalDb(Locker locker, String databaseName, DatabaseConfig dbConfig) Create a database for internal use.
OperationFailureException	EnvironmentImpl.createLockPreemptedException(Locker locker, Throwable cause) For replicated environments only; only the overridden method should ever be called.
DatabaseImpl	DbTree.createReplicaDb(Locker locker, String databaseName, DatabaseConfig dbConfig, NameLN replicatedLN, ReplicationContext repContext) Create a replicated database on this replica node.
DatabaseImpl	DbTree.dbRemove(Locker locker, String databaseName, DatabaseId checkId) Stand alone and Master invocations.
DatabaseImpl	DbTree.dbRename(Locker locker, String databaseName, String newName) Stand alone and Master invocations.
DatabaseImpl	DbTree.getDb(Locker nameLocker, String databaseName, HandleLocker handleLocker, boolean writeLock) Get a database object given a database name.
DatabaseId	DbTree.getDbIdFromName(Locker nameLocker, String databaseName, HandleLocker handleLocker, boolean writeLock) Get a database ID given a database name.
static void	TriggerManager.invokeAddRemoveTriggers(Locker locker, List<Trigger> oldTriggers, List<Trigger> newTriggers) Invoke the triggers associated with the addition or removal of the trigger itself.
static void	CursorImpl.lockAfterLsnChange(DatabaseImpl dbImpl, long oldLsn, long newLsn, Locker excludeLocker) After logging a deferred-write LN during eviction/checkpoint or a migrated LN during cleaning, for every existing lock on the old LSN held by another locker, we must lock the new LSN on behalf of that locker.
void	DbTree.removeReplicaDb(Locker locker, String databaseName, DatabaseId checkId, DbOpReplicationContext repContext) Replica invocations.
DatabaseImpl	DbTree.renameReplicaDb(Locker locker, String databaseName, String newName, NameLN replicatedLN, DbOpReplicationContext repContext) Replica invocations.
static void	TriggerManager.runCloseTriggers(Locker locker, DatabaseImpl dbImpl) Invokes the trigger methods associated with the closing of a database.
static void	TriggerManager.runDeleteTriggers(Locker locker, DatabaseImpl dbImpl, DatabaseEntry key, DatabaseEntry oldData) Invokes the trigger methods associated with a delete operation.
static void	TriggerManager.runOpenTriggers(Locker locker, Database db, boolean isNew) Invokes the trigger methods associated with the opening of a database.
static void	TriggerManager.runOpenTriggers(Locker locker, DatabaseImpl dbImpl, boolean isNew) Invokes the trigger methods associated with the opening of a database.
static void	TriggerManager.runPutTriggers(Locker locker, DatabaseImpl dbImpl, DatabaseEntry key, DatabaseEntry oldData, DatabaseEntry newData) Invokes the trigger methods associated with a put operation.
static void	TriggerManager.runRemoveTriggers(Locker locker, DatabaseImpl dbImpl) Invokes the trigger methods associated with the removal of a database.
static void	TriggerManager.runRenameTriggers(Locker locker, DatabaseImpl dbImpl, String newName) Invokes the trigger methods associated with the renaming of a database.
static void	TriggerManager.runTruncateTriggers(Locker locker, DatabaseImpl newDb) Invokes the trigger methods associated with the truncation of a database.
void	DatabaseImpl.setConfigProperties(Locker locker, String dbName, DatabaseConfig dbConfig, EnvironmentImpl envImpl)
boolean	DatabaseImpl.setTriggers(Locker locker, String dbName, List<Trigger> newTriggers, boolean overridePersistentTriggers) Sets the list of triggers associated with the database.
DbTree.TruncateDbResult	DbTree.truncate(Locker locker, String databaseName, boolean returnCount)
DbTree.TruncateDbResult	DbTree.truncateReplicaDb(Locker locker, String databaseName, boolean returnCount, NameLN replicatedLN, DbOpReplicationContext repContext)
void	DbTree.updateNameLN(Locker locker, String dbName, DbOpReplicationContext repContext) Update the NameLN for the DatabaseImpl when the DatabaseConfig changes.

Constructors in com.sleepycat.je.dbi with parameters of type Locker

Constructor and Description
CursorImpl(DatabaseImpl database, Locker locker) Creates a cursor with retainNonTxnLocks=true, isSecondaryCursor=false.
CursorImpl(DatabaseImpl dbImpl, Locker locker, boolean retainNonTxnLocks, boolean isSecondaryCursor) Creates a cursor.
DatabaseImpl(Locker locker, String dbName, DatabaseId id, EnvironmentImpl envImpl, DatabaseConfig dbConfig) Create a database object for a new database.

Uses of Locker in com.sleepycat.je.rep

Constructors in com.sleepycat.je.rep with parameters of type Locker

Constructor and Description
InsufficientReplicasException(Locker locker, Durability.ReplicaAckPolicy ackPolicy, int requiredAckCount, Set<String> availableReplicas) Creates a Commit exception.
LockPreemptedException(Locker locker, Throwable cause) For internal use only.
ReplicaWriteException(Locker locker, StateChangeEvent stateChangeEvent) For internal use only.
StateChangeException(Locker locker, StateChangeEvent stateChangeEvent) For internal use only.
UnknownMasterException(Locker locker, StateChangeEvent stateChangeEvent)

Uses of Locker in com.sleepycat.je.rep.impl

Methods in com.sleepycat.je.rep.impl with parameters of type Locker

Modifier and Type	Method and Description
void	RepImpl.checkIfMaster(Locker locker) Ensures that the environment is currently a Master before proceeding with an operation that requires it to be the master.
LockPreemptedException	RepImpl.createLockPreemptedException(Locker locker, Throwable cause)

Uses of Locker in com.sleepycat.je.rep.txn

Subclasses of Locker in com.sleepycat.je.rep.txn

Modifier and Type	Class and Description
class	MasterThreadLocker A MasterThreadLocker is used with a user initiated non-transactional operation on a Master, for a replicated DB.
class	MasterTxn A MasterTxn represents: - a user initiated Txn executed on the Master node, when local-write and read-only are not configured, or - an auto-commit Txn on the Master node for a replicated DB.
class	ReadonlyTxn A ReadonlyTxn represents - a user initiated Txn executed on the Master node, when local-write or read-only is configured, or - a user initiated Txn executed on the Replica node, whether or not local-write is configured, or - an auto-commit Txn on a Replica node for a replicated DB.
class	ReplayTxn Used for replaying replicated operations at replica nodes.
class	ReplicaThreadLocker A ReplicaThreadLocker is used with a user initiated non-transactional operation on a Replica, for a replicated DB.

Uses of Locker in com.sleepycat.je.tree

Methods in com.sleepycat.je.tree with parameters of type Locker

Modifier and Type	Method and Description
LogItem	LN.log(EnvironmentImpl envImpl, DatabaseImpl dbImpl, Locker locker, WriteLockInfo writeLockInfo, boolean newEmbeddedLN, byte[] newKey, int newExpiration, boolean newExpirationInHours, boolean currEmbeddedLN, long currLsn, int currSize, boolean isInsertion, boolean backgroundIO, ReplicationContext repContext) Convenience logging method, used to migrate an LN during cleaning.
LogItem	LN.optionalLog(EnvironmentImpl envImpl, DatabaseImpl dbImpl, Locker locker, WriteLockInfo writeLockInfo, boolean newEmbeddedLN, byte[] newKey, int newExpiration, boolean newExpirationInHours, boolean currEmbeddedLN, long currLsn, int currSize, boolean isInsertion, ReplicationContext repContext) Convenience logging method.

Uses of Locker in com.sleepycat.je.txn

Subclasses of Locker in com.sleepycat.je.txn

Modifier and Type	Class and Description
class	BasicLocker A non-transactional Locker that simply tracks locks and releases them when releaseNonTxnLocks or operationEnd is called.
class	BuddyLocker Extends BasicLocker to share locks with another specific locker.
class	HandleLocker Extends BasicLocker to share locks with another Locker that is being used to open a database.
class	PreparedTxn A PreparedTxn is used at recovery for processing a TXN_PREPARE log entry.
class	ReadCommittedLocker Extends BuddyLocker to acquire write locks using the buddy locker (the transaction locker).
class	ThreadLocker Extends BasicLocker to share locks among all lockers for the same thread.
class	Txn A Txn is the internal representation of a transaction created by a call to Environment.txnBegin.

Fields in com.sleepycat.je.txn declared as Locker

Modifier and Type	Field and Description
protected Locker	LockInfo.locker

Methods in com.sleepycat.je.txn that return Locker

Modifier and Type	Method and Description
static Locker	LockerFactory.getInternalReadOperationLocker(EnvironmentImpl envImpl) Get a non-transactional locker for internal database operations.
Locker	LockInfo.getLocker()
static Locker	LockerFactory.getReadableLocker(Database dbHandle, Locker locker, boolean readCommittedIsolation) Get a locker for this database handle for a read or cursor operation.
static Locker	LockerFactory.getReadableLocker(Database dbHandle, Transaction userTxn, boolean readCommittedIsolation) Get a locker for a read or cursor operation.
static Locker	LockerFactory.getWritableLocker(Environment env, Transaction userTxn, boolean isInternalDb, boolean dbIsTransactional, boolean autoTxnIsReplicated) Get a locker for a write operation, checking whether the db and environment is transactional or not.
static Locker	LockerFactory.getWritableLocker(Environment env, Transaction userTxn, boolean isInternalDb, boolean dbIsTransactional, boolean autoTxnIsReplicated, TransactionConfig autoCommitConfig) Get a locker for a write operation.
Locker	LockImpl.getWriteOwnerLocker() Return the locker that has a write ownership on this lock.
Locker	ThinLockImpl.getWriteOwnerLocker()
Locker	BasicLocker.getWriteOwnerLocker(long lsn) Get the txn that owns the lock on this node.
Locker	DummyLockManager.getWriteOwnerLocker(Long lsn)
abstract Locker	LockManager.getWriteOwnerLocker(Long lsn)
Locker	SyncedLockManager.getWriteOwnerLocker(Long lsn)
Locker	Txn.newNonTxnLocker() Returns 'this', since this locker holds no non-transactional locks.
Locker	BasicLocker.newNonTxnLocker() Throws EnvironmentFailureException unconditionally.
abstract Locker	Locker.newNonTxnLocker() Creates a fresh non-transactional locker, while retaining any transactional locks held by this locker.
Locker	ThreadLocker.newNonTxnLocker() Returns a new non-transactional locker that shares locks with this locker by virtue of being a ThreadLocker for the same thread.
Locker	ReadCommittedLocker.newNonTxnLocker() Returns a new ReadCommittedLocker that shares locks with this locker by virtue of both lockers only holding READ locks.

Methods in com.sleepycat.je.txn that return types with arguments of type Locker

Modifier and Type	Method and Description
Set<Locker>	LockImpl.release(Locker locker, MemoryBudget mb, int lockTableIndex) Releases a lock and moves the next waiter(s) to the owners.
Set<Locker>	ThinLockImpl.release(Locker locker, MemoryBudget mb, int lockTableIndex)

Methods in com.sleepycat.je.txn with parameters of type Locker

Modifier and Type	Method and Description
boolean	TxnManager.areOtherSerializableTransactionsActive(Locker excludeLocker) Returns whether there are any active serializable transactions, excluding the transaction given (if non-null).
void	BuddyLocker.checkPreempted(Locker allowPreemptedLocker) Forwards to the parent buddy locker, so the buddy can check itself and all of its child buddies.
void	Txn.checkPreempted(Locker allowPreemptedLocker) Checks for preemption in this locker and all its child buddies.
void	Locker.checkPreempted(Locker allowPreemptedLocker) Called when obtaining a lock to cause a LockPreemptedException to be thrown if a lock was preempted earlier.
void	ThreadLocker.checkPreempted(Locker allowPreemptedLocker) Checks for preemption in all thread lockers for this thread.
static BuddyLocker	BuddyLocker.createBuddyLocker(EnvironmentImpl env, Locker buddy)
static HandleLocker	HandleLocker.createHandleLocker(EnvironmentImpl env, Locker buddy)
static ReadCommittedLocker	ReadCommittedLocker.createReadCommittedLocker(EnvironmentImpl env, Locker buddy)
void	LockImpl.demote(Locker locker) Downgrade a write lock to a read lock.
void	ThinLockImpl.demote(Locker locker)
void	LockImpl.flushWaiter(Locker locker, MemoryBudget mb, int lockTableIndex) Remove this locker from the waiter list.
void	ThinLockImpl.flushWaiter(Locker locker, MemoryBudget mb, int lockTableIndex)
LockType	LockImpl.getOwnedLockType(Locker locker)
LockType	ThinLockImpl.getOwnedLockType(Locker locker)
LockType	DummyLockManager.getOwnedLockType(Long lsn, Locker locker)
abstract LockType	LockManager.getOwnedLockType(Long lsn, Locker locker) Returns the LockType if the given locker owns a lock on the given node, or null if the lock is not owned.
LockType	SyncedLockManager.getOwnedLockType(Long lsn, Locker locker)
static Locker	LockerFactory.getReadableLocker(Database dbHandle, Locker locker, boolean readCommittedIsolation) Get a locker for this database handle for a read or cursor operation.
boolean	LockImpl.isOwnedWriteLock(Locker locker) Return true if locker is an owner of this Lock and this is a write lock.
boolean	ThinLockImpl.isOwnedWriteLock(Locker locker)
boolean	LockImpl.isOwner(Locker locker, LockType lockType) Return true if locker is an owner of this Lock for lockType, false otherwise.
boolean	ThinLockImpl.isOwner(Locker locker, LockType lockType)
boolean	LockImpl.isWaiter(Locker locker) Return true if locker is a waiter on this Lock.
boolean	ThinLockImpl.isWaiter(Locker locker)
LockAttemptResult	LockImpl.lock(LockType requestType, Locker locker, boolean nonBlockingRequest, boolean jumpAheadOfWaiters, MemoryBudget mb, int lockTableIndex) Attempts to acquire the lock and returns the LockGrantType.
LockAttemptResult	ThinLockImpl.lock(LockType requestType, Locker locker, boolean nonBlockingRequest, boolean jumpAheadOfWaiters, MemoryBudget mb, int lockTableIndex)
LockGrantType	LockManager.lock(long lsn, Locker locker, LockType type, long timeout, boolean nonBlockingRequest, boolean jumpAheadOfWaiters, DatabaseImpl database) Attempt to acquire a lock of 'type' on 'lsn'.
boolean	DummyLockManager.ownsOrSharesLock(Locker locker, Long lsn)
abstract boolean	LockManager.ownsOrSharesLock(Locker locker, Long lsn)
boolean	SyncedLockManager.ownsOrSharesLock(Locker locker, Long lsn)
Set<Locker>	LockImpl.release(Locker locker, MemoryBudget mb, int lockTableIndex) Releases a lock and moves the next waiter(s) to the owners.
Set<Locker>	ThinLockImpl.release(Locker locker, MemoryBudget mb, int lockTableIndex)
boolean	LockManager.release(long lsn, Locker locker) Release a lock and possibly notify any waiters that they have been granted the lock.
void	Locker.setClosingLocker(Locker closingLocker) This method is called to set the closingLocker when a cursor has been duplicated prior to being moved.
boolean	HandleLocker.sharesLocksWith(Locker other) Returns whether this locker can share locks with the given locker.
boolean	BuddyLocker.sharesLocksWith(Locker other) Returns whether this locker can share locks with the given locker.
boolean	Locker.sharesLocksWith(Locker other) Returns whether this locker can share locks with the given locker.
boolean	ThreadLocker.sharesLocksWith(Locker other) Returns whether this locker can share locks with the given locker.
void	LockImpl.stealLock(@Nullable Locker locker, MemoryBudget mb, int lockTableIndex)
void	ThinLockImpl.stealLock(@Nullable Locker locker, MemoryBudget mb, int lockTableIndex)
LockAttemptResult	DummyLockManager.stealLock(Long lsn, Locker locker, LockType lockType)
abstract LockAttemptResult	LockManager.stealLock(Long lsn, Locker locker, LockType lockType)
LockAttemptResult	SyncedLockManager.stealLock(Long lsn, Locker locker, LockType lockType)

Constructors in com.sleepycat.je.txn with parameters of type Locker

Constructor and Description
BuddyLocker(EnvironmentImpl env, Locker buddy) Creates a BuddyLocker.
HandleLocker(EnvironmentImpl env, Locker buddy) Creates a HandleLocker.
LockInfo(Locker locker, LockType lockType) Construct a new LockInfo.