org.apache.nifi.hl7.query.evaluator.comparison

Class IsNullEvaluator

java.lang.Object

org.apache.nifi.hl7.query.evaluator.BooleanEvaluator

org.apache.nifi.hl7.query.evaluator.comparison.IsNullEvaluator

All Implemented Interfaces:

Evaluator<Boolean>

public class IsNullEvaluator
extends BooleanEvaluator

Field Summary

Fields

Modifier and Type	Field and Description
private Evaluator<?>	subjectEvaluator

Fields inherited from interface org.apache.nifi.hl7.query.evaluator.Evaluator

MESSAGE_KEY

Constructor Summary

Constructors

Constructor and Description
IsNullEvaluator(Evaluator<?> subjectEvaluator)

Method Summary

Modifier and Type	Method and Description
Boolean	evaluate(Map<String,Object> objectMap)
private boolean	isNull(Object subjectValue)

Methods inherited from class org.apache.nifi.hl7.query.evaluator.BooleanEvaluator

getType

Methods inherited from class java.lang.Object

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

Field Detail

subjectEvaluator

private final Evaluator<?> subjectEvaluator

Constructor Detail

IsNullEvaluator

public IsNullEvaluator(Evaluator<?> subjectEvaluator)

Method Detail

evaluate

public Boolean evaluate(Map<String,Object> objectMap)

isNull

private boolean isNull(Object subjectValue)