Class ObjectConfigMapperProvider

java.lang.Object

io.helidon.config.objectmapping.ObjectConfigMapperProvider

All Implemented Interfaces:

ConfigMapperProvider

public class ObjectConfigMapperProvider
extends Object
implements ConfigMapperProvider

Java beans support for configuration.

Constructor Summary

Constructors

Constructor	Description
ObjectConfigMapperProvider()	Service provider constructor.

Method Summary

Modifier and Type	Method	Description
<T> Optional<Function<Config,T>>	mapper(Class<T> type)	A simple mapping function from config node to a typed value based on the expected class.
Map<Class<?>, Function<Config,?>>	mappers()	Returns a map of mapper functions associated with appropriate target type (Class<?>.

Methods inherited from class Object

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

Methods inherited from interface ConfigMapperProvider

genericTypeMappers, mapper

Modifier and Type	Method	Description
default Map<GenericType<?>, BiFunction<Config, ConfigMapper, ?>>	genericTypeMappers()	Returns a map of mapper functions associated with appropriate target type (GenericType<?>.
default <T> Optional<BiFunction<Config, ConfigMapper, T>>	mapper(GenericType<T> type)	Mapper for a specific generic type.

Constructor Details

ObjectConfigMapperProvider

public ObjectConfigMapperProvider()

Service provider constructor.

Method Details

mappers

public Map<Class<?>, Function<Config,?>> mappers()

Description copied from interface: ConfigMapperProvider

Returns a map of mapper functions associated with appropriate target type (Class<?>.

Mappers will be automatically registered by Config.Builder during bootstrapping of Config unless disableld.

Specified by:

mappers in interface ConfigMapperProvider

Returns:

a map of config mapper functions, never null, though this may return an empty map if ConfigMapperProvider.mapper(Class) is used instead

mapper

public <T> Optional<Function<Config,T>> mapper(Class<T> type)

Description copied from interface: ConfigMapperProvider

A simple mapping function from config node to a typed value based on the expected class. If more complex type handling or conversion is needed, use ConfigMapperProvider.mapper(GenericType).

Specified by:

mapper in interface ConfigMapperProvider

Type Parameters:

T - type returned from conversion

Parameters:

type - type of the expected mapping result

Returns:

function to convert config node to the expected type, or empty if the type is not supported by this provider