org.apache.hadoop.hive.ql.io

Class IOPrepareCache

java.lang.Object

org.apache.hadoop.hive.ql.io.IOPrepareCache

public class IOPrepareCache
extends Object

IOPrepareCache is used to cache pre-query io-related objects. It should be cleared every time a new query issued.

Constructor Summary

Constructors

Constructor and Description
IOPrepareCache()

Method Summary

Methods

Modifier and Type	Method and Description
Map<Map<String,PartitionDesc>,Map<String,PartitionDesc>>	allocatePartitionDescMap()
void	clear()
static IOPrepareCache	get()
Map<Map<String,PartitionDesc>,Map<String,PartitionDesc>>	getPartitionDescMap()
void	setPartitionDescMap(Map<Map<String,PartitionDesc>,Map<String,PartitionDesc>> partitionDescMap)

Methods inherited from class java.lang.Object

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

Constructor Detail

IOPrepareCache

public IOPrepareCache()

Method Detail

get

public static IOPrepareCache get()

clear

public void clear()

allocatePartitionDescMap

public Map<Map<String,PartitionDesc>,Map<String,PartitionDesc>> allocatePartitionDescMap()

getPartitionDescMap

public Map<Map<String,PartitionDesc>,Map<String,PartitionDesc>> getPartitionDescMap()

setPartitionDescMap

public void setPartitionDescMap(Map<Map<String,PartitionDesc>,Map<String,PartitionDesc>> partitionDescMap)