org.apache.hadoop.hive.ql.stats

Class StatsFactory

java.lang.Object

org.apache.hadoop.hive.ql.stats.StatsFactory

public final class StatsFactory
extends java.lang.Object

A factory of stats publisher and aggregator implementations of the StatsPublisher and StatsAggregator interfaces.

Constructor Summary

Constructors

Constructor and Description
StatsFactory()

Method Summary

Modifier and Type	Method and Description
static StatsAggregator	getStatsAggregator() Returns a Stats Aggregator implementation class for the IStatsAggregator interface For example HBaseStatsAggregator for the HBase implementation
static StatsPublisher	getStatsPublisher() Returns a Stats publisher implementation class for the IStatsPublisher interface For example HBaseStatsPublisher for the HBase implementation
static boolean	setImplementation(java.lang.String configurationParam, Configuration conf) Sets the paths of the implementation classes of publishing and aggregation (IStatsPublisher and IStatsAggregator interfaces).

Methods inherited from class java.lang.Object

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

Constructor Detail

StatsFactory

public StatsFactory()

Method Detail

setImplementation

public static boolean setImplementation(java.lang.String configurationParam,
                                        Configuration conf)

Sets the paths of the implementation classes of publishing and aggregation (IStatsPublisher and IStatsAggregator interfaces). The paths are determined according to a configuration parameter which is passed as the user input for choosing the implementation as MySQL, HBase, ...

getStatsPublisher

public static StatsPublisher getStatsPublisher()

Returns a Stats publisher implementation class for the IStatsPublisher interface For example HBaseStatsPublisher for the HBase implementation

getStatsAggregator

public static StatsAggregator getStatsAggregator()

Returns a Stats Aggregator implementation class for the IStatsAggregator interface For example HBaseStatsAggregator for the HBase implementation