com.yahoo.sketches.tuple

Class DoubleSummarySetOperations

java.lang.Object

com.yahoo.sketches.tuple.DoubleSummarySetOperations

All Implemented Interfaces:

SummarySetOperations<DoubleSummary>

public final class DoubleSummarySetOperations
extends Object
implements SummarySetOperations<DoubleSummary>

Methods for producing unions and intersections of two generic tuple sketches of type Double, where the Summary is of type DoubleSummary.

Constructor Summary

Constructors

Constructor and Description
DoubleSummarySetOperations(DoubleSummary.Mode summaryMode) Creates an instance given a DoubleSummary update mode.

Method Summary

Modifier and Type	Method and Description
DoubleSummary	intersection(DoubleSummary a, DoubleSummary b) This is called when an intersection of two sketches is produced, and both sketches have the same key.
DoubleSummary	union(DoubleSummary a, DoubleSummary b) This is called when a union of two sketches is produced, and both sketches have the same key.

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleSummarySetOperations

public DoubleSummarySetOperations(DoubleSummary.Mode summaryMode)

Creates an instance given a DoubleSummary update mode.

Parameters:

summaryMode - DoubleSummary update mode.

Method Detail

union

public DoubleSummary union(DoubleSummary a,
                           DoubleSummary b)

Description copied from interface: SummarySetOperations

This is called when a union of two sketches is produced, and both sketches have the same key.

Specified by:

union in interface SummarySetOperations<DoubleSummary>

Parameters:

a - Summary from sketch A

b - Summary from sketch B

Returns:

union of Summary A and Summary B

intersection

public DoubleSummary intersection(DoubleSummary a,
                                  DoubleSummary b)

Description copied from interface: SummarySetOperations

This is called when an intersection of two sketches is produced, and both sketches have the same key.

Specified by:

intersection in interface SummarySetOperations<DoubleSummary>

Parameters:

a - Summary from sketch A

b - Summary from sketch B

Returns:

intersection of Summary A and Summary B