org.apache.nifi.attribute.expression.language.evaluation.functions

Class PaddingEvaluator

java.lang.Object

org.apache.nifi.attribute.expression.language.evaluation.StringEvaluator

org.apache.nifi.attribute.expression.language.evaluation.functions.PaddingEvaluator

All Implemented Interfaces:

Evaluator<String>

Direct Known Subclasses:

PadLeftEvaluator, PadRightEvaluator

abstract class PaddingEvaluator
extends StringEvaluator

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_PADDING_STRING
private Evaluator<Long>	desiredLength
private Evaluator<String>	pad
private Evaluator<String>	subject

Constructor Summary

Constructors

Constructor and Description
PaddingEvaluator(Evaluator<String> subject, Evaluator<Long> desiredLength, Evaluator<String> pad)

Method Summary

Modifier and Type	Method and Description
protected abstract String	doPad(String subjectValue, int desiredLengthValue, String padValue)
QueryResult<String>	evaluate(EvaluationContext evaluationContext)
Evaluator<?>	getSubjectEvaluator()

Methods inherited from class org.apache.nifi.attribute.expression.language.evaluation.StringEvaluator

getEvaluationsRemaining, getResultType, getToken, setToken

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PADDING_STRING

public static final String DEFAULT_PADDING_STRING

See Also:

Constant Field Values

subject

private final Evaluator<String> subject

desiredLength

private final Evaluator<Long> desiredLength

pad

private final Evaluator<String> pad

Constructor Detail

PaddingEvaluator

PaddingEvaluator(Evaluator<String> subject,
                 Evaluator<Long> desiredLength,
                 Evaluator<String> pad)

Method Detail

evaluate

public QueryResult<String> evaluate(EvaluationContext evaluationContext)

doPad

protected abstract String doPad(String subjectValue,
                                int desiredLengthValue,
                                String padValue)

getSubjectEvaluator

public Evaluator<?> getSubjectEvaluator()