Package com.yahoo.searchlib.aggregation

Class StandardDeviationAggregationResult

java.lang.Object

com.yahoo.vespa.objects.Selectable

com.yahoo.vespa.objects.Identifiable

com.yahoo.searchlib.expression.ExpressionNode

com.yahoo.searchlib.aggregation.AggregationResult

com.yahoo.searchlib.aggregation.StandardDeviationAggregationResult

All Implemented Interfaces:

Serializable, Cloneable

public class StandardDeviationAggregationResult
extends AggregationResult

Author:

bjorncs

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	classId

Constructor Summary

Constructors

Constructor	Description
StandardDeviationAggregationResult()	Constructor used for deserialization.
StandardDeviationAggregationResult(long count, double sum, double sumOfSquared)

Method Summary

Modifier and Type	Method	Description
protected boolean	equalsAggregation(AggregationResult obj)
ResultNode	getRank()	Returns a value that can be used for ranking.
double	getStandardDeviation()
protected void	onDeserialize(com.yahoo.vespa.objects.Deserializer buf)
protected int	onGetClassId()
protected void	onMerge(AggregationResult obj)	Mmust be implemented by subclasses to support merge.
protected void	onSerialize(com.yahoo.vespa.objects.Serializer buf)
void	visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor)

Methods inherited from class com.yahoo.searchlib.aggregation.AggregationResult

clone, equalsExpression, getExpression, getResult, getTag, merge, onExecute, onPrepare, postMerge, setExpression, setTag

Methods inherited from class com.yahoo.searchlib.expression.ExpressionNode

equals, execute, executeIterative, onArgument, prepare

Methods inherited from class com.yahoo.vespa.objects.Identifiable

create, createFromId, deserialize, deserializeOptional, deserializeWithId, equals, getClassId, getRawUtf8Bytes, getUtf8, hashCode, putUtf8, registerClass, serialize, serializeOptional, serializeWithId, toString

Methods inherited from class com.yahoo.vespa.objects.Selectable

select, select, selectMembers

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

classId

public static final int classId

Constructor Details

StandardDeviationAggregationResult

public StandardDeviationAggregationResult()

Constructor used for deserialization. Will be instantiated with a default sketch.

StandardDeviationAggregationResult

public StandardDeviationAggregationResult(long count,
 double sum,
 double sumOfSquared)

Method Details

getStandardDeviation

public double getStandardDeviation()

getRank

public ResultNode getRank()

Description copied from class: AggregationResult

Returns a value that can be used for ranking.

Specified by:

getRank in class AggregationResult

onMerge

protected void onMerge(AggregationResult obj)

Description copied from class: AggregationResult

Mmust be implemented by subclasses to support merge. It is called as the AggregationResult.merge(AggregationResult) method is invoked.

Specified by:

onMerge in class AggregationResult

Parameters:

obj - the result to merge with

equalsAggregation

protected boolean equalsAggregation(AggregationResult obj)

Specified by:

equalsAggregation in class AggregationResult

onSerialize

protected void onSerialize(com.yahoo.vespa.objects.Serializer buf)

Overrides:

onSerialize in class AggregationResult

onDeserialize

protected void onDeserialize(com.yahoo.vespa.objects.Deserializer buf)

Overrides:

onDeserialize in class AggregationResult

onGetClassId

protected int onGetClassId()

Overrides:

onGetClassId in class AggregationResult

visitMembers

public void visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor)

Overrides:

visitMembers in class AggregationResult