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

java.lang.Object
  org.apache.hadoop.hive.ql.stats.StatsFactory

public final class StatsFactory
extends Object

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

Method Summary

static int	getMaxPrefixLength(org.apache.hadoop.conf.Configuration conf)
StatsAggregator	getStatsAggregator() Returns a Stats Aggregator implementation class for the IStatsAggregator interface For example HBaseStatsAggregator for the HBase implementation
StatsPublisher	getStatsPublisher() Returns a Stats publisher implementation class for the IStatsPublisher interface For example HBaseStatsPublisher for the HBase implementation
static StatsFactory	newFactory(org.apache.hadoop.conf.Configuration conf)
static StatsFactory	newFactory(String configurationParam, org.apache.hadoop.conf.Configuration conf) Sets the paths of the implementation classes of publishing and aggregation (IStatsPublisher and IStatsAggregator interfaces).

Methods inherited from class java.lang.Object

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

Method Detail

getMaxPrefixLength

public static int getMaxPrefixLength(org.apache.hadoop.conf.Configuration conf)

newFactory

public static StatsFactory newFactory(org.apache.hadoop.conf.Configuration conf)

newFactory

public static StatsFactory newFactory(String configurationParam,
                                      org.apache.hadoop.conf.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 StatsPublisher getStatsPublisher()

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

getStatsAggregator

public StatsAggregator getStatsAggregator()

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