Package org.hcjf.layers.query

Class Equals

java.lang.Object

org.hcjf.layers.query.BaseEvaluator

org.hcjf.layers.query.FieldEvaluator

org.hcjf.layers.query.Equals

All Implemented Interfaces:

Evaluator

Direct Known Subclasses:

Distinct

public class Equals
extends FieldEvaluator

Compare two object and return true if the objects are equals and false in other ways.

Author:

javaito

Nested Class Summary

Nested classes/interfaces inherited from class org.hcjf.layers.query.BaseEvaluator

BaseEvaluator.QueryValue, BaseEvaluator.ReplaceableValue, BaseEvaluator.UnprocessedValue

Constructor Summary

Constructors

Constructor	Description
Equals(java.lang.Object leftValue, java.lang.Object rightValue)

Method Summary

Modifier and Type	Method	Description
boolean	evaluate(java.lang.Object object, Queryable.DataSource dataSource, Queryable.Consumer consumer)	Evaluate if the evaluator's value and the object's value in the specified field of the parameter instance are equals.

Methods inherited from class org.hcjf.layers.query.FieldEvaluator

containsReference, copy, equals, getLeftValue, getProcessedLeftValue, getProcessedRightValue, getRightValue, numberEquals, toString

Methods inherited from class org.hcjf.layers.query.BaseEvaluator

getEvaluatorFields, getProcessedValue, isTrueForced, setEvaluatorFields, setTrueForced

Methods inherited from class java.lang.Object

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

Constructor Detail

Equals

public Equals(java.lang.Object leftValue,
              java.lang.Object rightValue)

Method Detail

evaluate

public boolean evaluate(java.lang.Object object,
                        Queryable.DataSource dataSource,
                        Queryable.Consumer consumer)

Evaluate if the evaluator's value and the object's value in the specified field of the parameter instance are equals. This method support any kind of object like field value and parameter value too.

Parameters:

object - Instance to obtain the field value.

consumer - Data source consumer

dataSource - Data source.

Returns:

True if the two values are equals and false in other ways

Throws:

java.lang.IllegalArgumentException - If is impossible to get value from instance with introspection.