com.espertech.esper.runtime.client.util

Interface LockStrategy

All Known Implementing Classes:

LockStrategyDefault, LockStrategyNone, LockStrategyWTimeout

public interface LockStrategy

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

Method Summary

Modifier and Type	Method and Description
void	acquire(com.espertech.esper.common.internal.util.ManagedReadWriteLock runtimeWideLock) Acquire should acquire the write lock of the provided read-write lock and may retry and backoff or fail.
void	release(com.espertech.esper.common.internal.util.ManagedReadWriteLock runtimeWideLock) Release should release the write lock of the provided read-write lock and should never fail.

Method Detail

acquire

void acquire(com.espertech.esper.common.internal.util.ManagedReadWriteLock runtimeWideLock)
      throws LockStrategyException,
             InterruptedException

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

Parameters:

runtimeWideLock - the runtime-wide event processing read-write lock

Throws:

LockStrategyException - to indicate lock attempt failed

InterruptedException - when lock-taking is interrupted

release

void release(com.espertech.esper.common.internal.util.ManagedReadWriteLock runtimeWideLock)

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

Parameters:

runtimeWideLock - the runtime-wide event processing read-write lock