com.whitestein.lsps.engine

Interface LockService

All Known Subinterfaces:

LockServiceLocal, LockServiceRemote

All Known Implementing Classes:

LockServiceBean

public interface LockService

Service for acquiring and releasing of a lock.

Author:

ami

Method Summary

Modifier and Type	Method and Description
Lock	acquireLock(String lockName, String message) Acquires lock with the given lock name.
boolean	isLocked(String lockName) Returns true if a lock with the given lock name is held .
void	releaseLock(String lockName) Release lock with the given lock name.

Method Detail

acquireLock

Lock acquireLock(String lockName,
                 String message)

Acquires lock with the given lock name. If lock is successfully acquired, returns null, otherwise it returns Lock that holds the locks.

Parameters:

lockName -

message - arbitrary message, cannot be null

Returns:

null if requested lock was acquired

releaseLock

void releaseLock(String lockName)

Release lock with the given lock name.

Parameters:

lockName -

isLocked

boolean isLocked(String lockName)

Returns true if a lock with the given lock name is held .

Parameters:

lockName -

Returns:

true if a lock with the given lock name is held