Package com.yahoo.searchlib.expression

Class FixedWidthBucketFunctionNode

java.lang.Object

com.yahoo.vespa.objects.Selectable

com.yahoo.vespa.objects.Identifiable

com.yahoo.searchlib.expression.ExpressionNode

com.yahoo.searchlib.expression.FunctionNode

com.yahoo.searchlib.expression.MultiArgFunctionNode

com.yahoo.searchlib.expression.UnaryFunctionNode

com.yahoo.searchlib.expression.FixedWidthBucketFunctionNode

All Implemented Interfaces:

Serializable, Cloneable

public class FixedWidthBucketFunctionNode
extends UnaryFunctionNode

This function assign a fixed width bucket to each input value

Author:

Haavard Pettersen, Simon Thoresen Hult

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static int	classId

Constructor Summary

Constructors

Constructor	Description
FixedWidthBucketFunctionNode()	Constructs an empty result node.
FixedWidthBucketFunctionNode(NumericResultNode w, ExpressionNode arg)	Create a bucket expression with the given width and the given subexpression

Method Summary

Modifier and Type	Method	Description
FixedWidthBucketFunctionNode	clone()
protected boolean	equalsUnaryFunction(UnaryFunctionNode obj)
NumericResultNode	getWidth()	Obtain the width of this bucket expression
protected void	onDeserialize(com.yahoo.vespa.objects.Deserializer buf)
protected int	onGetClassId()
protected void	onSerialize(com.yahoo.vespa.objects.Serializer buf)
void	visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor)

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

equalsMultiArgFunction, getArg, onPrepare, onPrepareResult

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

addArg, equalsFunction, getArg, getNumArgs, hashCode, onCalculate, onExecute, selectMembers

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

equalsExpression, getResult, setResult

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, putUtf8, registerClass, serialize, serializeOptional, serializeWithId, toString

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

select, select

Methods inherited from class java.lang.Object

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

Field Detail

classId

public static final int classId

Constructor Detail

FixedWidthBucketFunctionNode

public FixedWidthBucketFunctionNode()

Constructs an empty result node.

FixedWidthBucketFunctionNode

public FixedWidthBucketFunctionNode(NumericResultNode w,
                                    ExpressionNode arg)

Create a bucket expression with the given width and the given subexpression

Parameters:

w - bucket width

arg - The argument for this function.

Method Detail

getWidth

public NumericResultNode getWidth()

Obtain the width of this bucket expression

Returns:

bucket width for this expression

onGetClassId

protected int onGetClassId()

Overrides:

onGetClassId in class UnaryFunctionNode

onSerialize

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

Overrides:

onSerialize in class MultiArgFunctionNode

onDeserialize

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

Overrides:

onDeserialize in class MultiArgFunctionNode

equalsUnaryFunction

protected boolean equalsUnaryFunction(UnaryFunctionNode obj)

Specified by:

equalsUnaryFunction in class UnaryFunctionNode

clone

public FixedWidthBucketFunctionNode clone()

Overrides:

clone in class MultiArgFunctionNode

visitMembers

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

Overrides:

visitMembers in class MultiArgFunctionNode