org.apache.solr.common.cloud
Class ZkOperation

java.lang.Object
  org.apache.solr.common.cloud.ZkOperation

public abstract class ZkOperation
extends Object

A callback object which can be used for implementing retry-able operations.

Constructor Summary

ZkOperation()

Method Summary

abstract Object

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ZkOperation

public ZkOperation()

Method Detail

execute

public abstract Object 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

InterruptedException