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java.lang.Object org.apache.jackrabbit.core.lock.XALockManager
public class XALockManager
Session-local lock manager that implements the semantical changes inside transactions. This manager validates lock/unlock operations inside its view of the locking space.
Constructor Summary | |
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XALockManager(LockManagerImpl lockMgr)
Create a new instance of this class. |
Method Summary | |
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void |
afterOperation(TransactionContext tx)
Invoked after one of the InternalXAResource.prepare(org.apache.jackrabbit.core.TransactionContext) , InternalXAResource.commit(org.apache.jackrabbit.core.TransactionContext) or
InternalXAResource.rollback(org.apache.jackrabbit.core.TransactionContext) method has been called. |
void |
associate(TransactionContext tx)
Associate this resource with a transaction. |
void |
beforeOperation(TransactionContext tx)
Invoked before one of the InternalXAResource.prepare(org.apache.jackrabbit.core.TransactionContext) , InternalXAResource.commit(org.apache.jackrabbit.core.TransactionContext) or
InternalXAResource.rollback(org.apache.jackrabbit.core.TransactionContext) method is called. |
void |
checkLock(NodeImpl node)
Check whether the node given is locked by somebody else than the current session. |
void |
checkLock(Path path,
Session session)
Check whether the path given is locked by somebody else than the session described. |
void |
commit(TransactionContext tx)
Commit transaction. This will finish the update and unlock the shared lock manager. |
boolean |
differentXAEnv(AbstractLockInfo info)
Return a flag indicating whether a lock info belongs to a different XA environment. |
Lock |
getLock(NodeImpl node)
Returns the Lock object that applies to a node. |
Lock[] |
getLocks(SessionImpl session)
Returns all locks owned by the specified session. |
boolean |
holdsLock(NodeImpl node)
Returns true if the node given holds a lock;
otherwise returns false . |
boolean |
isLocked(NodeImpl node)
Returns true if this node is locked either as a result
of a lock held by this node or by a deep lock on a node above this
node; otherwise returns false |
boolean |
isLockHolder(Session session,
NodeImpl node)
Returns true if the specified session holds a lock on the
given node; otherwise returns false . |
Lock |
lock(NodeImpl node,
boolean isDeep,
boolean isSessionScoped)
Lock a node. |
void |
lockTokenAdded(SessionImpl session,
String lt)
Invoked by a session to inform that a lock token has been added. |
void |
lockTokenRemoved(SessionImpl session,
String lt)
Invoked by a session to inform that a lock token has been removed. |
void |
prepare(TransactionContext tx)
Prepare transaction. |
void |
rollback(TransactionContext tx)
Rollback transaction. This will undo all updates and unlock the shared lock manager. |
void |
unlock(NodeImpl node)
Removes the lock on a node given by its path. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public XALockManager(LockManagerImpl lockMgr)
lockMgr
- lockMgr global lock managerMethod Detail |
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public Lock lock(NodeImpl node, boolean isDeep, boolean isSessionScoped) throws LockException, RepositoryException
lock
in interface LockManager
node
- nodeisDeep
- whether the lock applies to this node onlyisSessionScoped
- whether the lock is session scoped
LockException
- if this node already is locked, or some descendant
node is locked and isDeep
is true
RepositoryException
Node.lock(boolean, boolean)
public Lock getLock(NodeImpl node) throws LockException, RepositoryException
getLock
in interface LockManager
node
- node
LockException
- if this node is not locked
RepositoryException
Node.getLock()
public Lock[] getLocks(SessionImpl session) throws RepositoryException
getLocks
in interface LockManager
session
- session
RepositoryException
- if an error occursSessionImpl.getLocks()
public void unlock(NodeImpl node) throws LockException, RepositoryException
unlock
in interface LockManager
node
- node
LockException
- if this node is not locked or the session
does not have the correct lock token
RepositoryException
Node.unlock()
public boolean holdsLock(NodeImpl node) throws RepositoryException
true
if the node given holds a lock;
otherwise returns false
.
holdsLock
in interface LockManager
node
- node
true
if the node given holds a lock;
otherwise returns false
RepositoryException
Node.holdsLock()
public boolean isLockHolder(Session session, NodeImpl node) throws RepositoryException
true
if the specified session holds a lock on the
given node; otherwise returns false
.
Note that isLockHolder(session, node)==true
implies
holdsLock(node)==true
.
isLockHolder
in interface LockManager
session
- sessionnode
- node
false
RepositoryException
public boolean isLocked(NodeImpl node) throws RepositoryException
true
if this node is locked either as a result
of a lock held by this node or by a deep lock on a node above this
node; otherwise returns false
isLocked
in interface LockManager
node
- node
true
if this node is locked either as a result
of a lock held by this node or by a deep lock on a node above this
node; otherwise returns false
RepositoryException
Node.isLocked()
public void checkLock(NodeImpl node) throws LockException, RepositoryException
checkLock
in interface LockManager
node
- node to check
LockException
- if write access to the specified node is not allowed
RepositoryException
- if some other error occurspublic void checkLock(Path path, Session session) throws LockException, RepositoryException
checkLock
in interface LockManager
path
- path to checksession
- session
LockException
- if write access to the specified path is not allowed
RepositoryException
- if some other error occurspublic void lockTokenAdded(SessionImpl session, String lt)
lockTokenAdded
in interface LockManager
session
- session that has a added lock tokenlt
- added lock tokenpublic void lockTokenRemoved(SessionImpl session, String lt)
lockTokenRemoved
in interface LockManager
session
- session that has a removed lock tokenlt
- removed lock tokenpublic void associate(TransactionContext tx)
associate
in interface InternalXAResource
tx
- transaction context, if null
disassociatepublic void beforeOperation(TransactionContext tx)
InternalXAResource.prepare(org.apache.jackrabbit.core.TransactionContext)
, InternalXAResource.commit(org.apache.jackrabbit.core.TransactionContext)
or
InternalXAResource.rollback(org.apache.jackrabbit.core.TransactionContext)
method is called.
beforeOperation
in interface InternalXAResource
tx
- transaction contextpublic void prepare(TransactionContext tx) throws TransactionException
prepare
in interface InternalXAResource
tx
- transaction context
TransactionException
- if an error occurspublic void commit(TransactionContext tx)
commit
in interface InternalXAResource
tx
- transaction contextpublic void rollback(TransactionContext tx)
rollback
in interface InternalXAResource
tx
- transaction context.public void afterOperation(TransactionContext tx)
InternalXAResource.prepare(org.apache.jackrabbit.core.TransactionContext)
, InternalXAResource.commit(org.apache.jackrabbit.core.TransactionContext)
or
InternalXAResource.rollback(org.apache.jackrabbit.core.TransactionContext)
method has been called.
afterOperation
in interface InternalXAResource
tx
- transaction contextpublic boolean differentXAEnv(AbstractLockInfo info)
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