java.lang.Object
- org.springframework.core.ResolvableType

All Implemented Interfaces:
Serializable
```
public class ResolvableType
extends Object
implements Serializable
```
Encapsulates a Java Type, providing access to supertypes, interfaces, and generic parameters along with the ability to ultimately resolve to a Class.
ResolvableTypes may be obtained from fields, method parameters, method returns or classes. Most methods on this class will themselves return ResolvableTypes, allowing easy navigation. For example:
```
 private HashMap<Integer, List<String>> myMap;

 public void example() {
     ResolvableType t = ResolvableType.forField(getClass().getDeclaredField("myMap"));
     t.getSuperType(); // AbstractMap<Integer, List<String>>
     t.asMap(); // Map<Integer, List<String>>
     t.getGeneric(0).resolve(); // Integer
     t.getGeneric(1).resolve(); // List
     t.getGeneric(1); // List<String>
     t.resolveGeneric(1, 0); // String
 }
 
```
Since:
4.0
Author:
Phillip Webb, Juergen Hoeller, Stephane Nicoll
See Also:
forField(Field), forMethodParameter(Method, int), forMethodReturnType(Method), forConstructorParameter(Constructor, int), forClass(Class), forType(Type), forInstance(Object), ResolvableTypeProvider, Serialized Form

Field Summary
Fields
Modifier and Type Field Description
static ResolvableType NONE
ResolvableType returned when no value is available.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ResolvableType`	`as(Class<?> type)`	Return this type as a `ResolvableType` of the specified class.
`ResolvableType`	`asCollection()`	Convenience method to return this type as a resolvable `Collection` type.
`ResolvableType`	`asMap()`	Convenience method to return this type as a resolvable `Map` type.
`static void`	`clearCache()`	Clear the internal `ResolvableType`/`SerializableTypeWrapper` cache.
`boolean`	`equals(Object other)`
`static ResolvableType`	`forArrayComponent(ResolvableType componentType)`	Return a `ResolvableType` as a array of the specified `componentType`.
`static ResolvableType`	`forClass(Class<?> clazz)`	Return a `ResolvableType` for the specified `Class`, using the full generic type information for assignability checks.
`static ResolvableType`	`forClass(Class<?> baseType, Class<?> implementationClass)`	Return a `ResolvableType` for the specified base type (interface or base class) with a given implementation class.
`static ResolvableType`	`forClassWithGenerics(Class<?> clazz, Class<?>... generics)`	Return a `ResolvableType` for the specified `Class` with pre-declared generics.
`static ResolvableType`	`forClassWithGenerics(Class<?> clazz, ResolvableType... generics)`	Return a `ResolvableType` for the specified `Class` with pre-declared generics.
`static ResolvableType`	`forConstructorParameter(Constructor<?> constructor, int parameterIndex)`	Return a `ResolvableType` for the specified `Constructor` parameter.
`static ResolvableType`	`forConstructorParameter(Constructor<?> constructor, int parameterIndex, Class<?> implementationClass)`	Return a `ResolvableType` for the specified `Constructor` parameter with a given implementation.
`static ResolvableType`	`forField(Field field)`	Return a `ResolvableType` for the specified `Field`.
`static ResolvableType`	`forField(Field field, int nestingLevel)`	Return a `ResolvableType` for the specified `Field` with the given nesting level.
`static ResolvableType`	`forField(Field field, int nestingLevel, Class<?> implementationClass)`	Return a `ResolvableType` for the specified `Field` with a given implementation and the given nesting level.
`static ResolvableType`	`forField(Field field, Class<?> implementationClass)`	Return a `ResolvableType` for the specified `Field` with a given implementation.
`static ResolvableType`	`forField(Field field, ResolvableType implementationType)`	Return a `ResolvableType` for the specified `Field` with a given implementation.
`static ResolvableType`	`forInstance(Object instance)`	Return a `ResolvableType` for the specified instance.
`static ResolvableType`	`forMethodParameter(Method method, int parameterIndex)`	Return a `ResolvableType` for the specified `Method` parameter.
`static ResolvableType`	`forMethodParameter(Method method, int parameterIndex, Class<?> implementationClass)`	Return a `ResolvableType` for the specified `Method` parameter with a given implementation.
`static ResolvableType`	`forMethodParameter(MethodParameter methodParameter)`	Return a `ResolvableType` for the specified `MethodParameter`.
`static ResolvableType`	`forMethodParameter(MethodParameter methodParameter, Type targetType)`	Return a `ResolvableType` for the specified `MethodParameter`, overriding the target type to resolve with a specific given type.
`static ResolvableType`	`forMethodParameter(MethodParameter methodParameter, ResolvableType implementationType)`	Return a `ResolvableType` for the specified `MethodParameter` with a given implementation type.
`static ResolvableType`	`forMethodReturnType(Method method)`	Return a `ResolvableType` for the specified `Method` return type.
`static ResolvableType`	`forMethodReturnType(Method method, Class<?> implementationClass)`	Return a `ResolvableType` for the specified `Method` return type.
`static ResolvableType`	`forRawClass(Class<?> clazz)`	Return a `ResolvableType` for the specified `Class`, doing assignability checks against the raw class only (analogous to `Class.isAssignableFrom(java.lang.Class<?>)`, which this serves as a wrapper for.
`static ResolvableType`	`forType(Type type)`	Return a `ResolvableType` for the specified `Type`.
`static ResolvableType`	`forType(Type type, ResolvableType owner)`	Return a `ResolvableType` for the specified `Type` backed by the given owner type.
`static ResolvableType`	`forType(ParameterizedTypeReference<?> typeReference)`	Return a `ResolvableType` for the specified `ParameterizedTypeReference`.
`ResolvableType`	`getComponentType()`	Return the ResolvableType representing the component type of the array or `NONE` if this type does not represent an array.
`ResolvableType`	`getGeneric(int... indexes)`	Return a `ResolvableType` representing the generic parameter for the given indexes.
`ResolvableType[]`	`getGenerics()`	Return an array of `ResolvableTypes` representing the generic parameters of this type.
`ResolvableType[]`	`getInterfaces()`	Return a `ResolvableType` array representing the direct interfaces implemented by this type.
`ResolvableType`	`getNested(int nestingLevel)`	Return a `ResolvableType` for the specified nesting level.
`ResolvableType`	`getNested(int nestingLevel, Map<Integer,Integer> typeIndexesPerLevel)`	Return a `ResolvableType` for the specified nesting level.
`Class<?>`	`getRawClass()`	Return the underlying Java `Class` being managed, if available; otherwise `null`.
`Object`	`getSource()`	Return the underlying source of the resolvable type.
`ResolvableType`	`getSuperType()`	Return a `ResolvableType` representing the direct supertype of this type.
`Type`	`getType()`	Return the underling Java `Type` being managed.
`boolean`	`hasGenerics()`	Return `true` if this type contains generic parameters.
`int`	`hashCode()`
`boolean`	`hasUnresolvableGenerics()`	Determine whether the underlying type has any unresolvable generics: either through an unresolvable type variable on the type itself or through implementing a generic interface in a raw fashion, i.e.
`boolean`	`isArray()`	Return `true` if this type resolves to a Class that represents an array.
`boolean`	`isAssignableFrom(Class<?> other)`	Determine whether this `ResolvableType` is assignable from the specified other type.
`boolean`	`isAssignableFrom(ResolvableType other)`	Determine whether this `ResolvableType` is assignable from the specified other type.
`boolean`	`isInstance(Object obj)`	Determine whether the given object is an instance of this `ResolvableType`.
`Class<?>`	`resolve()`	Resolve this type to a `Class`, returning `null` if the type cannot be resolved.
`Class<?>`	`resolve(Class<?> fallback)`	Resolve this type to a `Class`, returning the specified `fallback` if the type cannot be resolved.
`Class<?>`	`resolveGeneric(int... indexes)`	Convenience method that will `get` and `resolve` a specific generic parameters.
`Class<?>[]`	`resolveGenerics()`	Convenience method that will `get` and `resolve` generic parameters.
`Class<?>[]`	`resolveGenerics(Class<?> fallback)`	Convenience method that will `get` and `resolve` generic parameters, using the specified `fallback` if any type cannot be resolved.
`Class<?>`	`toClass()`	Return this type as a resolved `Class`, falling back to `Object` if no specific class can be resolved.
`String`	`toString()`	Return a String representation of this type in its fully resolved form (including any generic parameters).

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - NONE
```
public static final ResolvableType NONE
```
    ResolvableType returned when no value is available. NONE is used in preference to null so that multiple method calls can be safely chained.
- Method Detail
  - getType
```
public Type getType()
```
    Return the underling Java Type being managed.
  - getRawClass
```
@Nullable
public Class<?> getRawClass()
```
    Return the underlying Java Class being managed, if available; otherwise null.
  - getSource
```
public Object getSource()
```
    Return the underlying source of the resolvable type. Will return a Field, MethodParameter or Type depending on how the ResolvableType was constructed. With the exception of the NONE constant, this method will never return null. This method is primarily to provide access to additional type information or meta-data that alternative JVM languages may provide.
  - toClass
```
public Class<?> toClass()
```
    Return this type as a resolved Class, falling back to Object if no specific class can be resolved.
    Returns:
    the resolved Class or the Object fallback
    Since:
    5.1
    See Also:
    getRawClass(), resolve(Class)
  - isInstance
```
public boolean isInstance(@Nullable
                          Object obj)
```
    Determine whether the given object is an instance of this ResolvableType.
    Parameters:
    obj - the object to check
    Since:
    4.2
    See Also:
    isAssignableFrom(Class)
  - isAssignableFrom
```
public boolean isAssignableFrom(Class<?> other)
```
    Determine whether this ResolvableType is assignable from the specified other type.
    Parameters:
    other - the type to be checked against (as a Class)
    Since:
    4.2
    See Also:
    isAssignableFrom(ResolvableType)
  - isAssignableFrom
```
public boolean isAssignableFrom(ResolvableType other)
```
    Determine whether this ResolvableType is assignable from the specified other type.
    Attempts to follow the same rules as the Java compiler, considering whether both the resolvedClass is assignable from the given type as well as whether all generics are assignable.
    Parameters:
    other - the type to be checked against (as a ResolvableType)
    Returns:
    true if the specified other type can be assigned to this ResolvableType; false otherwise
  - isArray
```
public boolean isArray()
```
    Return true if this type resolves to a Class that represents an array.
    See Also:
    getComponentType()
  - getComponentType
```
public ResolvableType getComponentType()
```
    Return the ResolvableType representing the component type of the array or NONE if this type does not represent an array.
    See Also:
    isArray()
  - asCollection
```
public ResolvableType asCollection()
```
    Convenience method to return this type as a resolvable Collection type. Returns NONE if this type does not implement or extend Collection.
    See Also:
    as(Class), asMap()
  - asMap
```
public ResolvableType asMap()
```
    Convenience method to return this type as a resolvable Map type. Returns NONE if this type does not implement or extend Map.
    See Also:
    as(Class), asCollection()
  - as
```
public ResolvableType as(Class<?> type)
```
    Return this type as a ResolvableType of the specified class. Searches supertype and interface hierarchies to find a match, returning NONE if this type does not implement or extend the specified class.
    Parameters:
    type - the required type (typically narrowed)
    Returns:
    a ResolvableType representing this object as the specified type, or NONE if not resolvable as that type
    See Also:
    asCollection(), asMap(), getSuperType(), getInterfaces()
  - getSuperType
```
public ResolvableType getSuperType()
```
    Return a ResolvableType representing the direct supertype of this type. If no supertype is available this method returns NONE.
    Note: The resulting ResolvableType instance may not be Serializable.
    See Also:
    getInterfaces()
  - getInterfaces
```
public ResolvableType[] getInterfaces()
```
    Return a ResolvableType array representing the direct interfaces implemented by this type. If this type does not implement any interfaces an empty array is returned.
    Note: The resulting ResolvableType instances may not be Serializable.
    See Also:
    getSuperType()
  - hasGenerics
```
public boolean hasGenerics()
```
    Return true if this type contains generic parameters.
    See Also:
    getGeneric(int...), getGenerics()
  - hasUnresolvableGenerics
```
public boolean hasUnresolvableGenerics()
```
    Determine whether the underlying type has any unresolvable generics: either through an unresolvable type variable on the type itself or through implementing a generic interface in a raw fashion, i.e. without substituting that interface's type variables. The result will be true only in those two scenarios.
  - getNested
```
public ResolvableType getNested(int nestingLevel)
```
    Return a ResolvableType for the specified nesting level. See getNested(int, Map) for details.
    Parameters:
    nestingLevel - the nesting level
    Returns:
    the ResolvableType type, or #NONE
  - getNested
```
public ResolvableType getNested(int nestingLevel,
                                @Nullable
                                Map<Integer,Integer> typeIndexesPerLevel)
```
    Return a ResolvableType for the specified nesting level.
    The nesting level refers to the specific generic parameter that should be returned. A nesting level of 1 indicates this type; 2 indicates the first nested generic; 3 the second; and so on. For example, given List<Set<Integer>> level 1 refers to the List, level 2 the Set, and level 3 the Integer.
    The typeIndexesPerLevel map can be used to reference a specific generic for the given level. For example, an index of 0 would refer to a Map key; whereas, 1 would refer to the value. If the map does not contain a value for a specific level the last generic will be used (e.g. a Map value).
    Nesting levels may also apply to array types; for example given String[], a nesting level of 2 refers to String.
    If a type does not contain generics the supertype hierarchy will be considered.
    Parameters:
    nestingLevel - the required nesting level, indexed from 1 for the current type, 2 for the first nested generic, 3 for the second and so on
    typeIndexesPerLevel - a map containing the generic index for a given nesting level (may be null)
    Returns:
    a ResolvableType for the nested level, or NONE
  - getGeneric
```
public ResolvableType getGeneric(@Nullable
                                 int... indexes)
```
    Return a ResolvableType representing the generic parameter for the given indexes. Indexes are zero based; for example given the type Map<Integer, List<String>>, getGeneric(0) will access the Integer. Nested generics can be accessed by specifying multiple indexes; for example getGeneric(1, 0) will access the String from the nested List. For convenience, if no indexes are specified the first generic is returned.
    If no generic is available at the specified indexes NONE is returned.
    Parameters:
    indexes - the indexes that refer to the generic parameter (may be omitted to return the first generic)
    Returns:
    a ResolvableType for the specified generic, or NONE
    See Also:
    hasGenerics(), getGenerics(), resolveGeneric(int...), resolveGenerics()
  - getGenerics
```
public ResolvableType[] getGenerics()
```
    Return an array of ResolvableTypes representing the generic parameters of this type. If no generics are available an empty array is returned. If you need to access a specific generic consider using the getGeneric(int...) method as it allows access to nested generics and protects against IndexOutOfBoundsExceptions.
    Returns:
    an array of ResolvableTypes representing the generic parameters (never null)
    See Also:
    hasGenerics(), getGeneric(int...), resolveGeneric(int...), resolveGenerics()
  - resolveGenerics
```
public Class<?>[] resolveGenerics()
```
    Convenience method that will get and resolve generic parameters.
    Returns:
    an array of resolved generic parameters (the resulting array will never be null, but it may contain null elements})
    See Also:
    getGenerics(), resolve()
  - resolveGenerics
```
public Class<?>[] resolveGenerics(Class<?> fallback)
```
    Convenience method that will get and resolve generic parameters, using the specified fallback if any type cannot be resolved.
    Parameters:
    fallback - the fallback class to use if resolution fails
    Returns:
    an array of resolved generic parameters
    See Also:
    getGenerics(), resolve()
  - resolveGeneric
```
@Nullable
public Class<?> resolveGeneric(int... indexes)
```
    Convenience method that will get and resolve a specific generic parameters.
    Parameters:
    indexes - the indexes that refer to the generic parameter (may be omitted to return the first generic)
    Returns:
    a resolved Class or null
    See Also:
    getGeneric(int...), resolve()
  - resolve
```
@Nullable
public Class<?> resolve()
```
    Resolve this type to a Class, returning null if the type cannot be resolved. This method will consider bounds of TypeVariables and WildcardTypes if direct resolution fails; however, bounds of Object.class will be ignored.
    If this method returns a non-null Class and hasGenerics() returns false, the given type effectively wraps a plain Class, allowing for plain Class processing if desirable.
    Returns:
    the resolved Class, or null if not resolvable
    See Also:
    resolve(Class), resolveGeneric(int...), resolveGenerics()
  - resolve
```
public Class<?> resolve(Class<?> fallback)
```
    Resolve this type to a Class, returning the specified fallback if the type cannot be resolved. This method will consider bounds of TypeVariables and WildcardTypes if direct resolution fails; however, bounds of Object.class will be ignored.
    Parameters:
    fallback - the fallback class to use if resolution fails
    Returns:
    the resolved Class or the fallback
    See Also:
    resolve(), resolveGeneric(int...), resolveGenerics()
  - equals
```
public boolean equals(@Nullable
                      Object other)
```
    Overrides:
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    hashCode in class Object
  - toString
```
public String toString()
```
    Return a String representation of this type in its fully resolved form (including any generic parameters).
    Overrides:
    toString in class Object
  - forClass
```
public static ResolvableType forClass(@Nullable
                                      Class<?> clazz)
```
    Return a ResolvableType for the specified Class, using the full generic type information for assignability checks. For example: ResolvableType.forClass(MyArrayList.class).
    Parameters:
    clazz - the class to introspect (null is semantically equivalent to Object.class for typical use cases here)
    Returns:
    a ResolvableType for the specified class
    See Also:
    forClass(Class, Class), forClassWithGenerics(Class, Class...)
  - forRawClass
```
public static ResolvableType forRawClass(@Nullable
                                         Class<?> clazz)
```
    Return a ResolvableType for the specified Class, doing assignability checks against the raw class only (analogous to Class.isAssignableFrom(java.lang.Class<?>), which this serves as a wrapper for. For example: ResolvableType.forRawClass(List.class).
    Parameters:
    clazz - the class to introspect (null is semantically equivalent to Object.class for typical use cases here)
    Returns:
    a ResolvableType for the specified class
    Since:
    4.2
    See Also:
    forClass(Class), getRawClass()
  - forClass
```
public static ResolvableType forClass(Class<?> baseType,
                                      Class<?> implementationClass)
```
    Return a ResolvableType for the specified base type (interface or base class) with a given implementation class. For example: ResolvableType.forClass(List.class, MyArrayList.class).
    Parameters:
    baseType - the base type (must not be null)
    implementationClass - the implementation class
    Returns:
    a ResolvableType for the specified base type backed by the given implementation class
    See Also:
    forClass(Class), forClassWithGenerics(Class, Class...)
  - forClassWithGenerics
```
public static ResolvableType forClassWithGenerics(Class<?> clazz,
                                                  Class<?>... generics)
```
    Return a ResolvableType for the specified Class with pre-declared generics.
    Parameters:
    clazz - the class (or interface) to introspect
    generics - the generics of the class
    Returns:
    a ResolvableType for the specific class and generics
    See Also:
    forClassWithGenerics(Class, ResolvableType...)
  - forClassWithGenerics
```
public static ResolvableType forClassWithGenerics(Class<?> clazz,
                                                  ResolvableType... generics)
```
    Return a ResolvableType for the specified Class with pre-declared generics.
    Parameters:
    clazz - the class (or interface) to introspect
    generics - the generics of the class
    Returns:
    a ResolvableType for the specific class and generics
    See Also:
    forClassWithGenerics(Class, Class...)
  - forInstance
```
public static ResolvableType forInstance(Object instance)
```
    Return a ResolvableType for the specified instance. The instance does not convey generic information but if it implements ResolvableTypeProvider a more precise ResolvableType can be used than the simple one based on the Class instance.
    Parameters:
    instance - the instance
    Returns:
    a ResolvableType for the specified instance
    Since:
    4.2
    See Also:
    ResolvableTypeProvider
  - forField
```
public static ResolvableType forField(Field field)
```
    Return a ResolvableType for the specified Field.
    Parameters:
    field - the source field
    Returns:
    a ResolvableType for the specified field
    See Also:
    forField(Field, Class)
  - forField
```
public static ResolvableType forField(Field field,
                                      Class<?> implementationClass)
```
    Return a ResolvableType for the specified Field with a given implementation.
    Use this variant when the class that declares the field includes generic parameter variables that are satisfied by the implementation class.
    Parameters:
    field - the source field
    implementationClass - the implementation class
    Returns:
    a ResolvableType for the specified field
    See Also:
    forField(Field)
  - forField
```
public static ResolvableType forField(Field field,
                                      @Nullable
                                      ResolvableType implementationType)
```
    Return a ResolvableType for the specified Field with a given implementation.
    Use this variant when the class that declares the field includes generic parameter variables that are satisfied by the implementation type.
    Parameters:
    field - the source field
    implementationType - the implementation type
    Returns:
    a ResolvableType for the specified field
    See Also:
    forField(Field)
  - forField
```
public static ResolvableType forField(Field field,
                                      int nestingLevel)
```
    Return a ResolvableType for the specified Field with the given nesting level.
    Parameters:
    field - the source field
    nestingLevel - the nesting level (1 for the outer level; 2 for a nested generic type; etc)
    See Also:
    forField(Field)
  - forField
```
public static ResolvableType forField(Field field,
                                      int nestingLevel,
                                      @Nullable
                                      Class<?> implementationClass)
```
    Return a ResolvableType for the specified Field with a given implementation and the given nesting level.
    Use this variant when the class that declares the field includes generic parameter variables that are satisfied by the implementation class.
    Parameters:
    field - the source field
    nestingLevel - the nesting level (1 for the outer level; 2 for a nested generic type; etc)
    implementationClass - the implementation class
    Returns:
    a ResolvableType for the specified field
    See Also:
    forField(Field)
  - forConstructorParameter
```
public static ResolvableType forConstructorParameter(Constructor<?> constructor,
                                                     int parameterIndex)
```
    Return a ResolvableType for the specified Constructor parameter.
    Parameters:
    constructor - the source constructor (must not be null)
    parameterIndex - the parameter index
    Returns:
    a ResolvableType for the specified constructor parameter
    See Also:
    forConstructorParameter(Constructor, int, Class)
  - forConstructorParameter
```
public static ResolvableType forConstructorParameter(Constructor<?> constructor,
                                                     int parameterIndex,
                                                     Class<?> implementationClass)
```
    Return a ResolvableType for the specified Constructor parameter with a given implementation. Use this variant when the class that declares the constructor includes generic parameter variables that are satisfied by the implementation class.
    Parameters:
    constructor - the source constructor (must not be null)
    parameterIndex - the parameter index
    implementationClass - the implementation class
    Returns:
    a ResolvableType for the specified constructor parameter
    See Also:
    forConstructorParameter(Constructor, int)
  - forMethodReturnType
```
public static ResolvableType forMethodReturnType(Method method)
```
    Return a ResolvableType for the specified Method return type.
    Parameters:
    method - the source for the method return type
    Returns:
    a ResolvableType for the specified method return
    See Also:
    forMethodReturnType(Method, Class)
  - forMethodReturnType
```
public static ResolvableType forMethodReturnType(Method method,
                                                 Class<?> implementationClass)
```
    Return a ResolvableType for the specified Method return type. Use this variant when the class that declares the method includes generic parameter variables that are satisfied by the implementation class.
    Parameters:
    method - the source for the method return type
    implementationClass - the implementation class
    Returns:
    a ResolvableType for the specified method return
    See Also:
    forMethodReturnType(Method)
  - forMethodParameter
```
public static ResolvableType forMethodParameter(Method method,
                                                int parameterIndex)
```
    Return a ResolvableType for the specified Method parameter.
    Parameters:
    method - the source method (must not be null)
    parameterIndex - the parameter index
    Returns:
    a ResolvableType for the specified method parameter
    See Also:
    forMethodParameter(Method, int, Class), forMethodParameter(MethodParameter)
  - forMethodParameter
```
public static ResolvableType forMethodParameter(Method method,
                                                int parameterIndex,
                                                Class<?> implementationClass)
```
    Return a ResolvableType for the specified Method parameter with a given implementation. Use this variant when the class that declares the method includes generic parameter variables that are satisfied by the implementation class.
    Parameters:
    method - the source method (must not be null)
    parameterIndex - the parameter index
    implementationClass - the implementation class
    Returns:
    a ResolvableType for the specified method parameter
    See Also:
    forMethodParameter(Method, int, Class), forMethodParameter(MethodParameter)
  - forMethodParameter
```
public static ResolvableType forMethodParameter(MethodParameter methodParameter)
```
    Return a ResolvableType for the specified MethodParameter.
    Parameters:
    methodParameter - the source method parameter (must not be null)
    Returns:
    a ResolvableType for the specified method parameter
    See Also:
    forMethodParameter(Method, int)
  - forMethodParameter
```
public static ResolvableType forMethodParameter(MethodParameter methodParameter,
                                                @Nullable
                                                ResolvableType implementationType)
```
    Return a ResolvableType for the specified MethodParameter with a given implementation type. Use this variant when the class that declares the method includes generic parameter variables that are satisfied by the implementation type.
    Parameters:
    methodParameter - the source method parameter (must not be null)
    implementationType - the implementation type
    Returns:
    a ResolvableType for the specified method parameter
    See Also:
    forMethodParameter(MethodParameter)
  - forMethodParameter
```
public static ResolvableType forMethodParameter(MethodParameter methodParameter,
                                                @Nullable
                                                Type targetType)
```
    Return a ResolvableType for the specified MethodParameter, overriding the target type to resolve with a specific given type.
    Parameters:
    methodParameter - the source method parameter (must not be null)
    targetType - the type to resolve (a part of the method parameter's type)
    Returns:
    a ResolvableType for the specified method parameter
    See Also:
    forMethodParameter(Method, int)
  - forArrayComponent
```
public static ResolvableType forArrayComponent(ResolvableType componentType)
```
    Return a ResolvableType as a array of the specified componentType.
    Parameters:
    componentType - the component type
    Returns:
    a ResolvableType as an array of the specified component type
  - forType
```
public static ResolvableType forType(@Nullable
                                     Type type)
```
    Return a ResolvableType for the specified Type.
    Note: The resulting ResolvableType instance may not be Serializable.
    Parameters:
    type - the source type (potentially null)
    Returns:
    a ResolvableType for the specified Type
    See Also:
    forType(Type, ResolvableType)
  - forType
```
public static ResolvableType forType(@Nullable
                                     Type type,
                                     @Nullable
                                     ResolvableType owner)
```
    Return a ResolvableType for the specified Type backed by the given owner type.
    Note: The resulting ResolvableType instance may not be Serializable.
    Parameters:
    type - the source type or null
    owner - the owner type used to resolve variables
    Returns:
    a ResolvableType for the specified Type and owner
    See Also:
    forType(Type)
  - forType
```
public static ResolvableType forType(ParameterizedTypeReference<?> typeReference)
```
    Return a ResolvableType for the specified ParameterizedTypeReference.
    Note: The resulting ResolvableType instance may not be Serializable.
    Parameters:
    typeReference - the reference to obtain the source type from
    Returns:
    a ResolvableType for the specified ParameterizedTypeReference
    Since:
    4.3.12
    See Also:
    forType(Type)
  - clearCache
```
public static void clearCache()
```
    Clear the internal ResolvableType/SerializableTypeWrapper cache.
    Since:
    4.2

Class ResolvableType

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

NONE

Method Detail

getType

getRawClass

getSource

toClass

isInstance

isAssignableFrom

isAssignableFrom

isArray

getComponentType

asCollection

asMap

as

getSuperType

getInterfaces

hasGenerics

hasUnresolvableGenerics

getNested

getNested

getGeneric

getGenerics

resolveGenerics

resolveGenerics

resolveGeneric

resolve

resolve

equals

hashCode

toString

forClass

forRawClass

forClass

forClassWithGenerics

forClassWithGenerics

forInstance

forField

forField

forField

forField

forField

forConstructorParameter

forConstructorParameter

forMethodReturnType

forMethodReturnType

forMethodParameter

forMethodParameter

forMethodParameter

forMethodParameter

forMethodParameter

forArrayComponent

forType

forType

forType

clearCache