Package com.yahoo.searchlib.expression

Class UnaryFunctionNode

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

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

ArrayAtLookupNode, DebugWaitFunctionNode, FixedWidthBucketFunctionNode, InterpolatedLookupNode, NegateFunctionNode, NormalizeSubjectFunctionNode, NumElemFunctionNode, RangeBucketPreDefFunctionNode, ReverseFunctionNode, SortFunctionNode, StrLenFunctionNode, TimeStampFunctionNode, ToFloatFunctionNode, ToIntFunctionNode, ToRawFunctionNode, ToStringFunctionNode, UcaFunctionNode, UnaryBitFunctionNode, ZCurveFunctionNode

public abstract class UnaryFunctionNode
extends MultiArgFunctionNode

This is an abstract super-class for all functions that accept only a single argument.

Author:

baldersheim, Simon Thoresen Hult

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	classId

Constructor Summary

Constructors

Constructor	Description
UnaryFunctionNode()

Method Summary

Modifier and Type	Method	Description
protected final boolean	equalsMultiArgFunction(MultiArgFunctionNode obj)
protected abstract boolean	equalsUnaryFunction(UnaryFunctionNode obj)
ExpressionNode	getArg()	Return the single argument given to this function.
protected int	onGetClassId()
void	onPrepare()
void	onPrepareResult()

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

addArg, clone, equalsFunction, getArg, getNumArgs, hashCode, onCalculate, onDeserialize, onExecute, onSerialize, selectMembers, visitMembers

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 Details

classId

public static final int classId

Constructor Details

UnaryFunctionNode

public UnaryFunctionNode()

Method Details

onGetClassId

protected int onGetClassId()

Overrides:

onGetClassId in class MultiArgFunctionNode

getArg

public ExpressionNode getArg()

Return the single argument given to this function.

Returns:

The argument to this function

onPrepareResult

public void onPrepareResult()

Overrides:

onPrepareResult in class MultiArgFunctionNode

onPrepare

public void onPrepare()

Overrides:

onPrepare in class MultiArgFunctionNode

equalsMultiArgFunction

protected final boolean equalsMultiArgFunction(MultiArgFunctionNode obj)

Specified by:

equalsMultiArgFunction in class MultiArgFunctionNode

equalsUnaryFunction

protected abstract boolean equalsUnaryFunction(UnaryFunctionNode obj)