Package com.yahoo.searchlib.aggregation

Class MinAggregationResult

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.MinAggregationResult

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class MinAggregationResult
extends AggregationResult

This is an aggregated result holding the minimum 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
MinAggregationResult()	Constructs an empty result node.
MinAggregationResult(SingleResultNode min)	Constructs an instance of this class with given min value.

Method Summary

Modifier and Type	Method	Description
MinAggregationResult	clone()
protected boolean	equalsAggregation(AggregationResult obj)
SingleResultNode	getMin()	Returns the minimum 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)
MinAggregationResult	setMin(SingleResultNode min)	Sets the minimum 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, 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

MinAggregationResult

public MinAggregationResult()

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

MinAggregationResult

public MinAggregationResult(SingleResultNode min)

Constructs an instance of this class with given min value.

Parameters:

min - The initial minimum to set.

Method Detail

getMin

public final SingleResultNode getMin()

Returns the minimum value found in all matching hits.

Returns:

The value.

setMin

public final MinAggregationResult setMin(SingleResultNode min)

Sets the minimum value found in all matching hits.

Parameters:

min - 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 MinAggregationResult clone()

Overrides:

clone in class AggregationResult

visitMembers

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

Overrides:

visitMembers in class AggregationResult