org.apache.hadoop.hive.ql.lockmgr

Class HiveLock

java.lang.Object

org.apache.hadoop.hive.ql.lockmgr.HiveLock

Direct Known Subclasses:

ZooKeeperHiveLock

public abstract class HiveLock
extends Object

Constructor Summary

Constructors

Constructor and Description
HiveLock()

Method Summary

Modifier and Type	Method and Description
List<org.apache.hadoop.hive.metastore.api.LockComponent>	getHiveLockComponents() Returns the lock components if a single lock can in turn lock multiple objects, e.g., multi-statement transaction.
abstract HiveLockMode	getHiveLockMode()
abstract HiveLockObject	getHiveLockObject()
boolean	mayContainComponents() Returns true if for this lock implementation, a single lock can in turn lock multiple objects, e.g., multi-statement transaction.

Methods inherited from class java.lang.Object

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

Constructor Detail

HiveLock

public HiveLock()

Method Detail

getHiveLockObject

public abstract HiveLockObject getHiveLockObject()

getHiveLockMode

public abstract HiveLockMode getHiveLockMode()

mayContainComponents

public boolean mayContainComponents()

Returns true if for this lock implementation, a single lock can in turn lock multiple objects, e.g., multi-statement transaction.

getHiveLockComponents

public List<org.apache.hadoop.hive.metastore.api.LockComponent> getHiveLockComponents()

Returns the lock components if a single lock can in turn lock multiple objects, e.g., multi-statement transaction. Returns an empty list if the lock does not have multiple components.