com.yahoo.bullet.query.expressions

Class UnaryExpression

java.lang.Object

com.yahoo.bullet.query.expressions.Expression

com.yahoo.bullet.query.expressions.UnaryExpression

All Implemented Interfaces:

Serializable

public class UnaryExpression
extends Expression

An expression that requires an operand and a unary operation.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.yahoo.bullet.query.expressions.Expression

type

Constructor Summary

Constructors

Constructor and Description
UnaryExpression(Expression operand, Operation op) Constructor that creates a unary expression.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Evaluator	getEvaluator() Gets a new instance of an evaluator for this expression.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

UnaryExpression

public UnaryExpression(Expression operand,
                       Operation op)

Constructor that creates a unary expression.

Parameters:

operand - The non-null operand.

op - The non-null unary operation.

Method Detail

getEvaluator

public Evaluator getEvaluator()

Description copied from class: Expression

Gets a new instance of an evaluator for this expression.

Specified by:

getEvaluator in class Expression

Returns:

A newly-constructed evaluator for this expression.

equals

public boolean equals(Object obj)

Specified by:

equals in class Expression

hashCode

public int hashCode()

Specified by:

hashCode in class Expression

toString

public String toString()

Overrides:

toString in class Expression