io.druid.query.aggregation.datasketches.theta

Class SketchObjectStrategy

java.lang.Object

io.druid.query.aggregation.datasketches.theta.SketchObjectStrategy

All Implemented Interfaces:

ObjectStrategy, Comparator

public class SketchObjectStrategy
extends Object
implements ObjectStrategy

Constructor Summary

Constructors

Constructor and Description
SketchObjectStrategy()

Method Summary

Modifier and Type	Method and Description
int	compare(Object s1, Object s2)
Object	fromByteBuffer(ByteBuffer buffer, int numBytes) Convert values from their underlying byte representation.
Class<?>	getClazz()
byte[]	toBytes(Object obj)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

SketchObjectStrategy

public SketchObjectStrategy()

Method Detail

compare

public int compare(Object s1,
                   Object s2)

Specified by:

compare in interface Comparator

getClazz

public Class<?> getClazz()

Specified by:

getClazz in interface ObjectStrategy

fromByteBuffer

public Object fromByteBuffer(ByteBuffer buffer,
                             int numBytes)

Description copied from interface: ObjectStrategy

Convert values from their underlying byte representation. Implementations of this method must not change the given buffer mark, or limit, but may modify its position. Use buffer.asReadOnlyBuffer() or buffer.duplicate() if mark or limit need to be set.

Specified by:

fromByteBuffer in interface ObjectStrategy

Parameters:

buffer - buffer to read value from

numBytes - number of bytes used to store the value, starting at buffer.position()

Returns:

an object created from the given byte buffer representation

toBytes

public byte[] toBytes(Object obj)

Specified by:

toBytes in interface ObjectStrategy