org.apache.pig.backend.hadoop.executionengine.tez.runtime

Class ObjectCache

java.lang.Object

org.apache.pig.backend.hadoop.executionengine.tez.runtime.ObjectCache

@InterfaceAudience.Public
public class ObjectCache
extends Object

Method Summary

Modifier and Type	Method and Description
void	cache(String key, Object value) Convenience method to cache objects in ObjectRegistry for a vertex
static ObjectCache	getInstance()
org.apache.tez.runtime.api.ObjectRegistry	getObjectRegistry() Returns the tez ObjectRegistry which allows caching of objects at the Session, DAG and Vertex level on container reuse for better performance and savings
Object	retrieve(String key) Convenience method to retrieve objects cached for the vertex from ObjectRegistry

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static ObjectCache getInstance()

getObjectRegistry

public org.apache.tez.runtime.api.ObjectRegistry getObjectRegistry()

Returns the tez ObjectRegistry which allows caching of objects at the Session, DAG and Vertex level on container reuse for better performance and savings

cache

public void cache(String key,
                  Object value)

Convenience method to cache objects in ObjectRegistry for a vertex

retrieve

public Object retrieve(String key)

Convenience method to retrieve objects cached for the vertex from ObjectRegistry