org.apache.kylin.storage.hbase.ii.coprocessor.endpoint

Class EndpointAggregators

java.lang.Object

org.apache.kylin.storage.hbase.ii.coprocessor.endpoint.EndpointAggregators

public class EndpointAggregators
extends Object

Author:

honma

Method Summary

Methods

Modifier and Type	Method and Description
void	aggregate(org.apache.kylin.measure.MeasureAggregator[] measureAggrs, byte[] row) this method is heavily called at coprocessor side, Make sure as little object creation as possible
org.apache.kylin.measure.MeasureAggregator[]	createBuffer()
static EndpointAggregators	deserialize(byte[] bytes)
List<Object>	deserializeMetricValues(ByteBuffer buffer)
static EndpointAggregators	fromFunctions(TableRecordInfo tableInfo, List<org.apache.kylin.metadata.model.FunctionDesc> metrics)
int	getMeasureSerializeLength()
TableRecordInfoDigest	getTableRecordInfoDigest()
boolean	isEmpty()
static byte[]	serialize(EndpointAggregators o)
int	serializeMetricValues(org.apache.kylin.measure.MeasureAggregator[] aggrs, byte[] buffer, int offset)

Methods inherited from class java.lang.Object

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

Method Detail

fromFunctions

public static EndpointAggregators fromFunctions(TableRecordInfo tableInfo,
                                List<org.apache.kylin.metadata.model.FunctionDesc> metrics)

getTableRecordInfoDigest

public TableRecordInfoDigest getTableRecordInfoDigest()

isEmpty

public boolean isEmpty()

createBuffer

public org.apache.kylin.measure.MeasureAggregator[] createBuffer()

aggregate

public void aggregate(org.apache.kylin.measure.MeasureAggregator[] measureAggrs,
             byte[] row)

this method is heavily called at coprocessor side, Make sure as little object creation as possible

serializeMetricValues

public int serializeMetricValues(org.apache.kylin.measure.MeasureAggregator[] aggrs,
                        byte[] buffer,
                        int offset)

Parameters:

aggrs -

buffer - byte buffer to get the metric data

Returns:

length of metric data

deserializeMetricValues

public List<Object> deserializeMetricValues(ByteBuffer buffer)

serialize

public static byte[] serialize(EndpointAggregators o)

deserialize

public static EndpointAggregators deserialize(byte[] bytes)

getMeasureSerializeLength

public int getMeasureSerializeLength()