feign

Class Types

java.lang.Object

feign.Types

public final class Types
extends Object

Static methods for working with types.

Author:

Bob Lee, Jesse Wilson

Method Summary

Modifier and Type	Method and Description
static Class<?>	getRawType(Type type)
static ParameterizedType	parameterize(Class<?> rawClass, Type... typeArguments)
static Type	resolve(Type context, Class<?> contextRawType, Type toResolve)
static Type	resolveLastTypeParameter(Type genericContext, Class<?> supertype) Resolves the last type parameter of the parameterized supertype, based on the genericContext, into its upper bounds.
static Type	resolveReturnType(Type baseType, Type overridingType)

Methods inherited from class java.lang.Object

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

Method Detail

getRawType

public static Class<?> getRawType(Type type)

resolve

public static Type resolve(Type context,
                           Class<?> contextRawType,
                           Type toResolve)

resolveReturnType

public static Type resolveReturnType(Type baseType,
                                     Type overridingType)

resolveLastTypeParameter

public static Type resolveLastTypeParameter(Type genericContext,
                                            Class<?> supertype)
                                     throws IllegalStateException

Resolves the last type parameter of the parameterized supertype, based on the genericContext, into its upper bounds.

Implementation copied from retrofit.RestMethodInfo.

Parameters:

genericContext - Ex. Field.getGenericType()

supertype - Ex. Decoder.class

Returns:

in the example above, the type parameter of Decoder.

Throws:

IllegalStateException - if supertype cannot be resolved into a parameterized type using context.

parameterize

public static ParameterizedType parameterize(Class<?> rawClass,
                                             Type... typeArguments)