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

Interface Evaluator<T>

All Known Subinterfaces:

IteratingEvaluator<T>, ReduceEvaluator<T>

All Known Implementing Classes:

AllAttributesEvaluator, AndEvaluator, AnyAttributeEvaluator, AppendEvaluator, AttributeEvaluator, Base64DecodeEvaluator, Base64EncodeEvaluator, BooleanCastEvaluator, BooleanEvaluator, BooleanLiteralEvaluator, CharSequenceTranslatorEvaluator, ContainsEvaluator, CountEvaluator, DateCastEvaluator, DateEvaluator, DecimalCastEvaluator, DecimalEvaluator, DecimalLiteralEvaluator, DelineatedAttributeEvaluator, DivideEvaluator, EndsWithEvaluator, EqualsEvaluator, EqualsIgnoreCaseEvaluator, EvaluateELStringEvaluator, FindEvaluator, FormatEvaluator, FromRadixEvaluator, GetDelimitedFieldEvaluator, GetStateVariableEvaluator, GreaterThanEvaluator, GreaterThanOrEqualEvaluator, HashEvaluator, HostnameEvaluator, IfElseEvaluator, IndexOfEvaluator, InEvaluator, IPEvaluator, IsEmptyEvaluator, IsNullEvaluator, JoinEvaluator, JsonPathAddEvaluator, JsonPathBaseEvaluator, JsonPathDeleteEvaluator, JsonPathEvaluator, JsonPathPutEvaluator, JsonPathSetEvaluator, JsonPathUpdateEvaluator, LastIndexOfEvaluator, LengthEvaluator, LessThanEvaluator, LessThanOrEqualEvaluator, MappingEvaluator, MatchesEvaluator, MathEvaluator, MinusEvaluator, ModEvaluator, MultiAttributeEvaluator, MultiMatchAttributeEvaluator, MultiNamedAttributeEvaluator, MultiplyEvaluator, NotEvaluator, NotNullEvaluator, NowEvaluator, NumberCastEvaluator, NumberEvaluator, NumberToDateEvaluator, OneUpSequenceEvaluator, OrEvaluator, PaddingEvaluator, PadLeftEvaluator, PadRightEvaluator, ParameterEvaluator, PlusEvaluator, PrependEvaluator, RandomNumberGeneratorEvaluator, RepeatEvaluator, ReplaceAllEvaluator, ReplaceEmptyEvaluator, ReplaceEvaluator, ReplaceFirstEvaluator, ReplaceNullEvaluator, StartsWithEvaluator, StringCastEvaluator, StringEvaluator, StringLiteralEvaluator, StringToDateEvaluator, SubstringAfterEvaluator, SubstringAfterLastEvaluator, SubstringBeforeEvaluator, SubstringBeforeLastEvaluator, SubstringEvaluator, ThreadEvaluator, ToLiteralEvaluator, ToLowerEvaluator, ToRadixEvaluator, ToStringEvaluator, ToUpperEvaluator, TrimEvaluator, UrlDecodeEvaluator, UrlEncodeEvaluator, Uuid3Evaluator, Uuid5Evaluator, UuidEvaluator, WholeNumberCastEvaluator, WholeNumberEvaluator, WholeNumberLiteralEvaluator

public interface Evaluator<T>

Method Summary

Modifier and Type	Method and Description
QueryResult<T>	evaluate(EvaluationContext evaluationContext)
int	getEvaluationsRemaining(EvaluationContext context)
AttributeExpression.ResultType	getResultType()
Evaluator<?>	getSubjectEvaluator()
String	getToken()
void	setToken(String token) Sets the token that was used in the query to cause this Evaluator to be created

Method Detail

evaluate

QueryResult<T> evaluate(EvaluationContext evaluationContext)

getResultType

AttributeExpression.ResultType getResultType()

getEvaluationsRemaining

int getEvaluationsRemaining(EvaluationContext context)

getSubjectEvaluator

Evaluator<?> getSubjectEvaluator()

setToken

void setToken(String token)

Sets the token that was used in the query to cause this Evaluator to be created

Parameters:

token - the token that caused this Evaluator to be created

getToken

String getToken()

Returns:

the token that caused this Evaluator to be created