io.micronaut.core.value

Interface ValueResolver<K extends CharSequence>

Type Parameters:

K - parent type

All Known Subinterfaces:

AnnotationValueResolver, ApplicationContext, BeanResolutionContext, ConvertibleMultiValues<V>, ConvertibleValues<V>, Cookies, Environment, Headers, HttpHeaders, HttpParameters, MessageHeaders, MutableConvertibleMultiValues<V>, MutableConvertibleValues<V>, MutableHeaders, MutableHttpHeaders, MutableHttpParameters, PropertyResolver, RxWebSocketSession, Session, VisitorContext, WebSocketSession

All Known Implementing Classes:

AnnotationValue, ConvertibleMultiValuesMap, ConvertibleValuesMap, DefaultApplicationContext, DefaultBeanResolutionContext, DefaultEnvironment, GroovyVisitorContext, InMemorySession, JavaVisitorContext, MapPropertyResolver, MutableConvertibleMultiValuesMap, MutableConvertibleValuesMap, NettyCookies, NettyHttpHeaders, NettyHttpParameters, NettyRxWebSocketSession, ObjectNodeConvertibleValues, PropertySourcePropertyResolver, SimpleCookies, SimpleHttpHeaders, SimpleHttpParameters

public interface ValueResolver<K extends CharSequence>

An interface for any type that is able to resolve and convert values.

Since:

1.0

Author:

Graeme Rocher

See Also:

TypeConverter

Method Summary

Modifier and Type	Method and Description
default <T> Optional<T>	get(K name, Argument<T> requiredType) Resolve the given property for the given name.
<T> Optional<T>	get(K name, ArgumentConversionContext<T> conversionContext) Resolve the given property for the given name.
default <T> Optional<T>	get(K name, Class<T> requiredType) Resolve the given property for the given name.
default <T> T	get(K name, Class<T> requiredType, T defaultValue) Resolve the given property for the given name.

Method Detail

get

<T> Optional<T> get(K name,
                    ArgumentConversionContext<T> conversionContext)

Resolve the given property for the given name.

Type Parameters:

T - The concrete type

Parameters:

name - The name

conversionContext - The conversion context

Returns:

An optional containing the property value if it exists and is able to be converted

get

default <T> Optional<T> get(K name,
                            Class<T> requiredType)

Resolve the given property for the given name.

Type Parameters:

T - The concrete type

Parameters:

name - The name

requiredType - The required type

Returns:

An optional containing the property value if it exists and is able to be converted

get

default <T> Optional<T> get(K name,
                            Argument<T> requiredType)

Resolve the given property for the given name.

Type Parameters:

T - The concrete type

Parameters:

name - The name

requiredType - The required type

Returns:

An optional containing the property value if it exists and is able to be converted

get

default <T> T get(K name,
                  Class<T> requiredType,
                  T defaultValue)

Resolve the given property for the given name.

Type Parameters:

T - The concrete type

Parameters:

name - The name

requiredType - The required type

defaultValue - The default value

Returns:

An optional containing the property value if it exists