TriggerLockFactory.Lock

Enclosing interface:: TriggerLockFactory

public static interface TriggerLockFactory.Lock

Method Summary

Modifier and Type

Method

Description

boolean

isHeld()

Checks if the lock is already taken.

boolean

tryLock()

Tries to acquire a lock with a given key.

void

unlock()

Releases the lock.

Method Details
- tryLock
  
  boolean tryLock()
  
  Tries to acquire a lock with a given key. Anyone already holding a lock would prevent acquiring this lock. Not reentrant.
  Called by TriggerManager. Implementations could assume that are no concurrent calls for this method.
  
  Returns:
  
  true if the lock is acquired by this job, false if the lock is already held by someone
- isHeld
  
  boolean isHeld()
  
  Checks if the lock is already taken.
  
  Returns:
  
  true if the lock is held by someone
- unlock
  
  void unlock()
  
  Releases the lock. Should not fail if the lock is not held by anyone.
  Called by LockRemover. Implementations could assume that are no concurrent calls for this method.