Package org.instancio.generator.specs

Interface AsGeneratorSpec<T>

Type Parameters:

T - generated type

All Superinterfaces:

GeneratorSpec<T>

All Known Subinterfaces:

BigDecimalAsGeneratorSpec, BooleanAsGeneratorSpec, CharacterAsGeneratorSpec, EmailAsGeneratorSpec, EnumAsGeneratorSpec<E>, HashAsGeneratorSpec, InstantGeneratorAsSpec, LocalDateTimeGeneratorAsSpec, LocalTimeGeneratorAsSpec, LuhnAsGeneratorSpec, Mod10AsGeneratorSpec, Mod11AsGeneratorSpec, MonthDayGeneratorSpec, NumberAsGeneratorSpec<T>, NumericSequenceAsGeneratorSpec<T>, OffsetDateTimeGeneratorAsSpec, OffsetTimeGeneratorAsSpec, PathAsGeneratorSpec<T>, SinAsGeneratorSpec, TemporalAsGeneratorSpec<T>, TextPatternAsGeneratorSpec, URIAsGeneratorSpec, URLAsGeneratorSpec, ZonedDateTimeGeneratorAsSpec

public interface AsGeneratorSpec<T>
extends GeneratorSpec<T>

Allows mapping the result of a generator to another type.

Since:

2.11.0

Method Summary

Modifier and Type	Method	Description
default <R> GeneratorSpec<R>	as(Function<T,R> mappingFunction)	Converts the generated value to another type using the specified mapping function.
default GeneratorSpec<String>	asString()	Converts the generated value to a String.

Method Details

asString

default GeneratorSpec<String> asString()

Converts the generated value to a String.

Returns:

generator spec with the result mapped to a string using Object.toString()

Since:

2.11.0

as

default <R> GeneratorSpec<R> as(Function<T,R> mappingFunction)

Converts the generated value to another type using the specified mapping function.

Example:

   record LogEntry(String msg, long timestamp) {}

   LogEntry result = Instancio.of(LogEntry.class)
     .generate(field(Log::timestamp), gen -> gen.temporal().instant().past().as(Instant::toEpochMilli))
     .create();
 

Type Parameters:

R - resulting type after applying the function

Parameters:

mappingFunction - for mapping generated value to another type

Returns:

generator spec with mapped result

Since:

2.11.0