Package com.yahoo.searchlib.expression

Class StrLenFunctionNode

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.StrLenFunctionNode

All Implemented Interfaces:

Serializable, Cloneable

public class StrLenFunctionNode
extends UnaryFunctionNode

This function is an instruction to negate its 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
StrLenFunctionNode()	Constructs an empty result node.
StrLenFunctionNode(ExpressionNode arg)	Constructs an instance of this class with given argument.

Method Summary

Modifier and Type	Method	Description
protected boolean	equalsUnaryFunction(UnaryFunctionNode obj)
boolean	onExecute()
protected int	onGetClassId()
void	onPrepare()
void	onPrepareResult()

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

equalsMultiArgFunction, getArg

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

addArg, clone, equalsFunction, getArg, getNumArgs, hashCode, onCalculate, onDeserialize, 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

StrLenFunctionNode

public StrLenFunctionNode()

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

StrLenFunctionNode

public StrLenFunctionNode(ExpressionNode arg)

Constructs an instance of this class with given argument.

Parameters:

arg - The argument for this function.

Method Details

onPrepareResult

public void onPrepareResult()

Overrides:

onPrepareResult in class UnaryFunctionNode

onPrepare

public void onPrepare()

Overrides:

onPrepare in class UnaryFunctionNode

onExecute

public boolean onExecute()

Overrides:

onExecute in class MultiArgFunctionNode

onGetClassId

protected int onGetClassId()

Overrides:

onGetClassId in class UnaryFunctionNode

equalsUnaryFunction

protected boolean equalsUnaryFunction(UnaryFunctionNode obj)

Specified by:

equalsUnaryFunction in class UnaryFunctionNode