org.apache.kylin.storage.hbase.cube.v1

Class CubeSegmentTupleIterator

java.lang.Object

org.apache.kylin.storage.hbase.cube.v1.CubeSegmentTupleIterator

All Implemented Interfaces:

Iterator<org.apache.kylin.metadata.tuple.ITuple>, org.apache.kylin.metadata.tuple.ITupleIterator

public class CubeSegmentTupleIterator
extends Object
implements org.apache.kylin.metadata.tuple.ITupleIterator

Author:

xjiang

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.kylin.cube.CubeSegment	cubeSeg
protected org.apache.kylin.cube.cuboid.Cuboid	cuboid
static org.slf4j.Logger	logger
protected org.apache.kylin.metadata.tuple.Tuple	next
protected org.apache.kylin.metadata.tuple.Tuple	oneTuple
protected Iterator<org.apache.kylin.storage.translate.HBaseKeyRange>	rangeIterator
protected Iterator<org.apache.hadoop.hbase.client.Result>	resultIterator
protected List<RowValueDecoder>	rowValueDecoders
protected int	scanCount
protected int	scanCountDelta
protected CubeTupleConverter	tupleConverter

Fields inherited from interface org.apache.kylin.metadata.tuple.ITupleIterator

EMPTY_TUPLE_ITERATOR

Constructor Summary

Constructors

Constructor and Description

CubeSegmentTupleIterator(org.apache.kylin.cube.CubeSegment cubeSeg, List<org.apache.kylin.storage.translate.HBaseKeyRange> keyRanges, org.apache.hadoop.hbase.client.HConnection conn, Set<org.apache.kylin.metadata.model.TblColRef> dimensions, org.apache.kylin.metadata.filter.TupleFilter filter, Set<org.apache.kylin.metadata.model.TblColRef> groupBy, List<RowValueDecoder> rowValueDecoders, org.apache.kylin.storage.StorageContext context, org.apache.kylin.metadata.tuple.TupleInfo returnTupleInfo)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
protected void	closeScanner()
protected Iterator<org.apache.hadoop.hbase.client.Result>	doScan(org.apache.kylin.storage.translate.HBaseKeyRange keyRange)
protected void	flushScanCountDelta()
boolean	hasNext()
org.apache.kylin.metadata.tuple.Tuple	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

logger

public static final org.slf4j.Logger logger

cubeSeg

protected final org.apache.kylin.cube.CubeSegment cubeSeg

rowValueDecoders

protected final List<RowValueDecoder> rowValueDecoders

tupleConverter

protected CubeTupleConverter tupleConverter

rangeIterator

protected final Iterator<org.apache.kylin.storage.translate.HBaseKeyRange> rangeIterator

oneTuple

protected final org.apache.kylin.metadata.tuple.Tuple oneTuple

resultIterator

protected Iterator<org.apache.hadoop.hbase.client.Result> resultIterator

scanCount

protected int scanCount

scanCountDelta

protected int scanCountDelta

next

protected org.apache.kylin.metadata.tuple.Tuple next

cuboid

protected final org.apache.kylin.cube.cuboid.Cuboid cuboid

Constructor Detail

CubeSegmentTupleIterator

public CubeSegmentTupleIterator(org.apache.kylin.cube.CubeSegment cubeSeg,
                        List<org.apache.kylin.storage.translate.HBaseKeyRange> keyRanges,
                        org.apache.hadoop.hbase.client.HConnection conn,
                        Set<org.apache.kylin.metadata.model.TblColRef> dimensions,
                        org.apache.kylin.metadata.filter.TupleFilter filter,
                        Set<org.apache.kylin.metadata.model.TblColRef> groupBy,
                        List<RowValueDecoder> rowValueDecoders,
                        org.apache.kylin.storage.StorageContext context,
                        org.apache.kylin.metadata.tuple.TupleInfo returnTupleInfo)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<org.apache.kylin.metadata.tuple.ITuple>

next

public org.apache.kylin.metadata.tuple.Tuple next()

Specified by:

next in interface Iterator<org.apache.kylin.metadata.tuple.ITuple>

remove

public void remove()

Specified by:

remove in interface Iterator<org.apache.kylin.metadata.tuple.ITuple>

doScan

protected final Iterator<org.apache.hadoop.hbase.client.Result> doScan(org.apache.kylin.storage.translate.HBaseKeyRange keyRange)

closeScanner

protected void closeScanner()

close

public void close()

Specified by:

close in interface org.apache.kylin.metadata.tuple.ITupleIterator

flushScanCountDelta

protected void flushScanCountDelta()