com.espertech.esper.client.deploy

Interface DeploymentLockStrategy

All Known Implementing Classes:

DeploymentLockStrategyDefault, DeploymentLockStrategyNone, DeploymentLockStrategyWTimeout

public interface DeploymentLockStrategy

Implement this interface to provide a custom deployment lock strategy. The default lock strategy is DeploymentLockStrategyDefault.

Method Summary

Modifier and Type	Method and Description
void	acquire(ManagedReadWriteLock engineWideLock) Acquire should acquire the write lock of the provided read-write lock and may retry and backoff or fail.
void	release(ManagedReadWriteLock engineWideLock) Release should release the write lock of the provided read-write lock and should never fail.

Method Detail

acquire

void acquire(ManagedReadWriteLock engineWideLock)
      throws DeploymentLockException,
             InterruptedException

Acquire should acquire the write lock of the provided read-write lock and may retry and backoff or fail.

Parameters:

engineWideLock - the engine-wide event processing read-write lock

Throws:

DeploymentLockException - to indicate lock attempt failed

InterruptedException - when lock-taking is interrupted

release

void release(ManagedReadWriteLock engineWideLock)

Release should release the write lock of the provided read-write lock and should never fail.

Parameters:

engineWideLock - the engine-wide event processing read-write lock