com.yahoo.bullet.querying.evaluators

Class ValueEvaluator

java.lang.Object

com.yahoo.bullet.querying.evaluators.Evaluator

com.yahoo.bullet.querying.evaluators.ValueEvaluator

All Implemented Interfaces:

Serializable

public class ValueEvaluator
extends Evaluator

An evaluator that returns a constant value.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ValueEvaluator(ValueExpression valueExpression) Constructor that creates a value evaluator from a ValueExpression.

Method Summary

Modifier and Type	Method and Description
com.yahoo.bullet.typesystem.TypedObject	evaluate(com.yahoo.bullet.record.BulletRecord record) Evaluates this evaluator on the given BulletRecord.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ValueEvaluator

public ValueEvaluator(ValueExpression valueExpression)

Constructor that creates a value evaluator from a ValueExpression.

Parameters:

valueExpression - The value expression to construct the evaluator from.

Method Detail

evaluate

public com.yahoo.bullet.typesystem.TypedObject evaluate(com.yahoo.bullet.record.BulletRecord record)

Description copied from class: Evaluator

Evaluates this evaluator on the given BulletRecord.

Specified by:

evaluate in class Evaluator

Parameters:

record - The Bullet record to evaluate this evaluator on.

Returns:

The result of this evaluator on the given Bullet record.