Package com.yahoo.searchlib.aggregation

Class MaxAggregationResult

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.MaxAggregationResult

All Implemented Interfaces:

Serializable, Cloneable

public class MaxAggregationResult
extends AggregationResult

This is an aggregated result holding the maximum result of the matching hits.

Author:

baldersheim, Simon Thoresen Hult

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static int	classId

Constructor Summary

Constructors

Constructor	Description
MaxAggregationResult()	Constructs an empty result node.
MaxAggregationResult(SingleResultNode max)	Constructs an instance of this class with given max value.

Method Summary

Modifier and Type	Method	Description
MaxAggregationResult	clone()
protected boolean	equalsAggregation(AggregationResult obj)
SingleResultNode	getMax()	Returns the maximum value found in all matching hits.
ResultNode	getRank()	Returns a value that can be used for ranking.
protected void	onDeserialize(com.yahoo.vespa.objects.Deserializer buf)
protected int	onGetClassId()
protected void	onMerge(AggregationResult result)	Mmust be implemented by subclasses to support merge.
protected void	onSerialize(com.yahoo.vespa.objects.Serializer buf)
MaxAggregationResult	setMax(SingleResultNode max)	Sets the maximum value found in all matching hits.
void	visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor)

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

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 Detail

classId

public static final int classId

Constructor Detail

MaxAggregationResult

public MaxAggregationResult()

Constructs an empty result node. NOTE: This instance is broken until non-optional member data is set.

MaxAggregationResult

public MaxAggregationResult(SingleResultNode max)

Constructs an instance of this class with given max value.

Parameters:

max - The initial maximum to set.

Method Detail

getMax

public final SingleResultNode getMax()

Returns the maximum value found in all matching hits.

Returns:

The value.

setMax

public final MaxAggregationResult setMax(SingleResultNode max)

Sets the maximum value found in all matching hits.

Parameters:

max - The value.

Returns:

This, to allow chaining.

getRank

public ResultNode getRank()

Description copied from class: AggregationResult

Returns a value that can be used for ranking.

Specified by:

getRank in class AggregationResult

onGetClassId

protected int onGetClassId()

Overrides:

onGetClassId 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

onMerge

protected void onMerge(AggregationResult result)

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:

result - the result to merge with

equalsAggregation

protected boolean equalsAggregation(AggregationResult obj)

Specified by:

equalsAggregation in class AggregationResult

clone

public MaxAggregationResult clone()

Overrides:

clone in class AggregationResult

visitMembers

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

Overrides:

visitMembers in class AggregationResult