io.druid.query.aggregation.histogram

Class ApproximateHistogramBufferAggregator

java.lang.Object

io.druid.query.aggregation.histogram.ApproximateHistogramBufferAggregator

All Implemented Interfaces:

BufferAggregator

public class ApproximateHistogramBufferAggregator
extends Object
implements BufferAggregator

Constructor Summary

Constructors

Constructor and Description
ApproximateHistogramBufferAggregator(FloatColumnSelector selector, int resolution, float lowerLimit, float upperLimit)

Method Summary

Modifier and Type	Method and Description
void	aggregate(ByteBuffer buf, int position)
void	close()
Object	get(ByteBuffer buf, int position)
float	getFloat(ByteBuffer buf, int position)
long	getLong(ByteBuffer buf, int position)
void	init(ByteBuffer buf, int position)

Methods inherited from class java.lang.Object

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

Constructor Detail

ApproximateHistogramBufferAggregator

public ApproximateHistogramBufferAggregator(FloatColumnSelector selector,
                                            int resolution,
                                            float lowerLimit,
                                            float upperLimit)

Method Detail

init

public void init(ByteBuffer buf,
                 int position)

Specified by:

init in interface BufferAggregator

aggregate

public void aggregate(ByteBuffer buf,
                      int position)

Specified by:

aggregate in interface BufferAggregator

get

public Object get(ByteBuffer buf,
                  int position)

Specified by:

get in interface BufferAggregator

getFloat

public float getFloat(ByteBuffer buf,
                      int position)

Specified by:

getFloat in interface BufferAggregator

getLong

public long getLong(ByteBuffer buf,
                    int position)

Specified by:

getLong in interface BufferAggregator

close

public void close()

Specified by:

close in interface BufferAggregator