org.apache.tajo.plan.expr

Class SignedEval

java.lang.Object

org.apache.tajo.plan.expr.EvalNode

org.apache.tajo.plan.expr.UnaryEval

org.apache.tajo.plan.expr.SignedEval

All Implemented Interfaces:

Cloneable, ProtoObject<PlanProto.EvalNodeTree>, GsonObject

public class SignedEval
extends UnaryEval
implements Cloneable

Field Summary

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

child

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

type

Constructor Summary

Constructors

Constructor and Description
SignedEval(boolean negative, EvalNode childEval)

Method Summary

Methods

Modifier and Type	Method and Description
Object	clone()
boolean	equals(Object obj)
Datum	eval(Schema schema, Tuple tuple)
String	getName()
TajoDataTypes.DataType	getValueType()
int	hashCode()
boolean	isNegative()
String	toString()

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

childNum, getChild, getChild, postOrder, preOrder, setChild

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

getProto, getType, toJson

Methods inherited from class java.lang.Object

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

Constructor Detail

SignedEval

public SignedEval(boolean negative,
          EvalNode childEval)

Method Detail

isNegative

public boolean isNegative()

getValueType

public TajoDataTypes.DataType getValueType()

Overrides:

getValueType in class UnaryEval

getName

public String getName()

Overrides:

getName in class UnaryEval

eval

public Datum eval(Schema schema,
         Tuple tuple)

Overrides:

eval in class UnaryEval

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class UnaryEval

hashCode

public int hashCode()

Overrides:

hashCode in class UnaryEval

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class UnaryEval

Throws:

CloneNotSupportedException