Class MethodGenericTypeResolver

java.lang.Object

tools.jackson.databind.introspect.MethodGenericTypeResolver

final class MethodGenericTypeResolver
extends Object

Internal utility functionality to handle type resolution for method type variables based on the requested result type: this is needed to work around the problem of static factory methods not being able to use class type variable bindings (see [databind#2895] for more).

Since:

2.12

Constructor Summary

Constructors

Constructor	Description
MethodGenericTypeResolver()

Method Summary

Modifier and Type	Method	Description
(package private) static TypeBindings	bindMethodTypeParameters(Method candidate, JavaType requestedType, TypeResolutionContext emptyTypeResCtxt)	Returns TypeBindings with additional type information based on requestedType if possible, otherwise null.
private static TypeVariable<?>	findByName(TypeVariable<?>[] typeVariables, String name)
private static ParameterizedType	maybeGetParameterizedType(Type type)
private static TypeVariable<?>	maybeGetTypeVariable(Type type)
static TypeResolutionContext	narrowMethodTypeParameters(Method candidate, JavaType requestedType, TypeFactory typeFactory, TypeResolutionContext emptyTypeResCtxt)
private static boolean	pessimisticallyValidateBound(TypeResolutionContext context, JavaType boundType, Type type)
private static boolean	pessimisticallyValidateBounds(TypeResolutionContext context, JavaType boundType, Type[] upperBound)

Methods inherited from class Object

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

Constructor Details

MethodGenericTypeResolver

MethodGenericTypeResolver()

Method Details

narrowMethodTypeParameters

public static TypeResolutionContext narrowMethodTypeParameters(Method candidate,
 JavaType requestedType,
 TypeFactory typeFactory,
 TypeResolutionContext emptyTypeResCtxt)

bindMethodTypeParameters

static TypeBindings bindMethodTypeParameters(Method candidate,
 JavaType requestedType,
 TypeResolutionContext emptyTypeResCtxt)

Returns TypeBindings with additional type information based on requestedType if possible, otherwise null.

maybeGetTypeVariable

private static TypeVariable<?> maybeGetTypeVariable(Type type)

maybeGetParameterizedType

private static ParameterizedType maybeGetParameterizedType(Type type)

pessimisticallyValidateBounds

private static boolean pessimisticallyValidateBounds(TypeResolutionContext context,
 JavaType boundType,
 Type[] upperBound)

pessimisticallyValidateBound

private static boolean pessimisticallyValidateBound(TypeResolutionContext context,
 JavaType boundType,
 Type type)

findByName

private static TypeVariable<?> findByName(TypeVariable<?>[] typeVariables,
 String name)