org.apache.hadoop.util.curator

Class ZKCuratorManager.SafeTransaction

java.lang.Object

org.apache.hadoop.util.curator.ZKCuratorManager.SafeTransaction

Enclosing class:

org.apache.hadoop.util.curator.ZKCuratorManager

public class ZKCuratorManager.SafeTransaction
extends Object

Use curator transactions to ensure zk-operations are performed in an all or nothing fashion. This is equivalent to using ZooKeeper#multi. TODO (YARN-3774): Curator 3.0 introduces CuratorOp similar to Op. We ll have to rewrite this inner class when we adopt that.

Method Summary

Modifier and Type	Method and Description
void	commit()
void	create(String path, byte[] data, List<org.apache.zookeeper.data.ACL> acl, org.apache.zookeeper.CreateMode mode)
void	delete(String path)
void	setData(String path, byte[] data, int version)

Methods inherited from class java.lang.Object

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

Method Detail

commit

public void commit()
            throws Exception

Throws:

Exception

create

public void create(String path,
                   byte[] data,
                   List<org.apache.zookeeper.data.ACL> acl,
                   org.apache.zookeeper.CreateMode mode)
            throws Exception

Throws:

Exception

delete

public void delete(String path)
            throws Exception

Throws:

Exception

setData

public void setData(String path,
                    byte[] data,
                    int version)
             throws Exception

Throws:

Exception