org.apache.tajo.plan.expr

Class CaseWhenEval

java.lang.Object

org.apache.tajo.plan.expr.EvalNode

org.apache.tajo.plan.expr.CaseWhenEval

All Implemented Interfaces:

Cloneable, ProtoObject<PlanProto.EvalNodeTree>, GsonObject

public class CaseWhenEval
extends EvalNode
implements GsonObject

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CaseWhenEval.IfThenEval

Field Summary

Fields inherited from class org.apache.tajo.plan.expr.EvalNode

type

Constructor Summary

Constructors

Constructor and Description
CaseWhenEval()

Method Summary

Methods

Modifier and Type	Method and Description
void	addIfCond(CaseWhenEval.IfThenEval ifCond)
void	addIfCond(EvalNode condition, EvalNode result)
int	childNum()
Object	clone()
boolean	equals(Object obj)
Datum	eval(Schema schema, Tuple tuple)
EvalNode	getChild(int idx)
EvalNode	getElse()
List<CaseWhenEval.IfThenEval>	getIfThenEvals()
String	getName()
TajoDataTypes.DataType	getValueType()
boolean	hasElse()
void	postOrder(EvalNodeVisitor visitor)
void	preOrder(EvalNodeVisitor visitor)
void	setElseResult(EvalNode elseResult)
String	toString()

Methods inherited from class org.apache.tajo.plan.expr.EvalNode

getProto, getType, toJson

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tajo.json.GsonObject

toJson

Constructor Detail

CaseWhenEval

public CaseWhenEval()

Method Detail

addIfCond

public void addIfCond(CaseWhenEval.IfThenEval ifCond)

addIfCond

public void addIfCond(EvalNode condition,
             EvalNode result)

getIfThenEvals

public List<CaseWhenEval.IfThenEval> getIfThenEvals()

hasElse

public boolean hasElse()

getElse

public EvalNode getElse()

setElseResult

public void setElseResult(EvalNode elseResult)

getValueType

public TajoDataTypes.DataType getValueType()

Specified by:

getValueType in class EvalNode

childNum

public int childNum()

Specified by:

childNum in class EvalNode

getChild

public EvalNode getChild(int idx)

Specified by:

getChild in class EvalNode

getName

public String getName()

Specified by:

getName in class EvalNode

eval

public Datum eval(Schema schema,
         Tuple tuple)

Specified by:

eval in class EvalNode

toString

public String toString()

Overrides:

toString in class Object

preOrder

public void preOrder(EvalNodeVisitor visitor)

Specified by:

preOrder in class EvalNode

postOrder

public void postOrder(EvalNodeVisitor visitor)

Specified by:

postOrder in class EvalNode

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class EvalNode

Throws:

CloneNotSupportedException

equals

public boolean equals(Object obj)

Overrides:

equals in class Object