ml.shifu.guagua.coordinator.zk

Interface GuaguaZooKeeperOperation<T>

Type Parameters:

T - result for each command.

public interface GuaguaZooKeeperOperation<T>

GuaguaZooKeeperOperation is used as command to process consistent logic like re-trying for all zookeeper operations (create, get, ...).

Method Summary

Methods

Modifier and Type	Method and Description
T	execute() Performs the operation - which may be involved multiple times if the connection to ZooKeeper closes during this operation.

Method Detail

execute

T execute()
          throws org.apache.zookeeper.KeeperException,
                 InterruptedException

Performs the operation - which may be involved multiple times if the connection to ZooKeeper closes during this operation.

Returns:

the result of the operation or null

Throws:

org.apache.zookeeper.KeeperException - by any zookeeper operation.

InterruptedException - by any zookeeper operation.