com.whitestein.lsps.stdlib

Class LockServiceBean

java.lang.Object

com.whitestein.lsps.common.SecureAndLoggingService

com.whitestein.lsps.stdlib.LockServiceBean

All Implemented Interfaces:

LockServiceLocal, LockServiceRemote, LockService

@PermitAll
public class LockServiceBean
extends com.whitestein.lsps.common.SecureAndLoggingService
implements LockServiceLocal, LockServiceRemote

Service implementation.

Field Summary

Fields inherited from class com.whitestein.lsps.common.SecureAndLoggingService

PRINCIPAL_KEY

Constructor Summary

Constructors

Constructor and Description
LockServiceBean() Creates new instance.
LockServiceBean(LockDao lockDao) Creates new instance.

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.

Methods inherited from class com.whitestein.lsps.common.SecureAndLoggingService

getCurrentTransactionData, getOriginalPrincipal, getSecurityManagerService

Methods inherited from class java.lang.Object

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

Constructor Detail

LockServiceBean

public LockServiceBean()

Creates new instance.

LockServiceBean

public LockServiceBean(LockDao lockDao)

Creates new instance.

Parameters:

lockDao - the lock dao

Throws:

NullPointerException - if lockDao is null

Method Detail

acquireLock

@RightsAllowed(value="Lock:Manage")
public Lock acquireLock(String lockName,
                                                            String message)

Description copied from interface: LockService

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

Specified by:

acquireLock in interface LockService

message - arbitrary message, cannot be null

Returns:

null if requested lock was acquired

releaseLock

@RightsAllowed(value="Lock:Manage")
public void releaseLock(String lockName)

Description copied from interface: LockService

Release lock with the given lock name.

Specified by:

releaseLock in interface LockService

isLocked

@RightsAllowed(value="Lock:Manage")
public boolean isLocked(String lockName)

Description copied from interface: LockService

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

Specified by:

isLocked in interface LockService

Returns:

true if a lock with the given lock name is held