Class Types
- java.lang.Object
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- org.keycloak.common.util.reflections.Types
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public class Types extends Object
Utility class for Types
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static Class<?>
boxedClass(Class<?> type)
static Type
boxedType(Type type)
Gets the boxed type of a classstatic Type[]
findClassParameterizedTypes(Class<?> root, ParameterizedType rootType, Class<?> searchedForClass)
static Type[]
findInterfaceParameterizedTypes(Class<?> root, ParameterizedType rootType, Class<?> searchedForInterface)
static Type[]
findParameterizedTypes(Class<?> root, Class<?> searchedFor)
Search for the given interface or class within the root's class/interface hierarchy.static Type[]
getActualTypeArgumentsOfAnInterface(Class<?> classToSearch, Class<?> interfaceToFind)
Given a class and an interfaces, go through the class hierarchy to find the interface and return its type arguments.static Class
getArgumentType(ParameterizedType pType, int index)
Gets the index-th type argument.static Class
getCollectionBaseType(Class type, Type genericType)
static Method
getImplementingMethod(Class clazz, Method intfMethod)
Given a method and a root class, find the actual method declared in the root that implements the method.static Class
getMapKeyType(Type genericType)
static Class
getMapValueType(Type genericType)
static Class<?>
getRawType(Type type)
static Class<?>
getRawTypeNoException(Type type)
static Class
getTemplateParameterOfInterface(Class base, Class desiredInterface)
static Class<?>
getTypeArgument(Type genericType)
Returns the type argument from a parameterized typestatic boolean
isA(Class clazz, ParameterizedType pType)
Is the genericType of a certain class?static boolean
isCompatible(Method method, Method intfMethod)
See if the two methods are compatible, that is they have the same relative signaturestatic Type
resolveTypeVariable(Class<?> root, TypeVariable<?> typeVariable)
Finds an actual value of a type variable.static Type
resolveTypeVariables(Class<?> root, Type type)
static <T> boolean
supports(Class<T> type, Object object, Class<?> fromInterface)
Grabs the parameterized type of fromInterface that object implements and sees if it is assignable from type.
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Method Detail
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boxedType
public static Type boxedType(Type type)
Gets the boxed type of a class- Parameters:
type
- The type- Returns:
- The boxed type
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isA
public static boolean isA(Class clazz, ParameterizedType pType)
Is the genericType of a certain class?
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getArgumentType
public static Class getArgumentType(ParameterizedType pType, int index)
Gets the index-th type argument.
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getTemplateParameterOfInterface
public static Class getTemplateParameterOfInterface(Class base, Class desiredInterface)
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isCompatible
public static boolean isCompatible(Method method, Method intfMethod)
See if the two methods are compatible, that is they have the same relative signature- Parameters:
method
-intfMethod
-- Returns:
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getImplementingMethod
public static Method getImplementingMethod(Class clazz, Method intfMethod)
Given a method and a root class, find the actual method declared in the root that implements the method.- Parameters:
clazz
-intfMethod
-- Returns:
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getTypeArgument
public static Class<?> getTypeArgument(Type genericType)
Returns the type argument from a parameterized type- Parameters:
genericType
-- Returns:
- null if there is no type parameter
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resolveTypeVariable
public static Type resolveTypeVariable(Class<?> root, TypeVariable<?> typeVariable)
Finds an actual value of a type variable. The method looks in a class hierarchy for a class defining the variable and returns the value if present.- Parameters:
root
-typeVariable
-- Returns:
- actual type of the type variable
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getActualTypeArgumentsOfAnInterface
public static Type[] getActualTypeArgumentsOfAnInterface(Class<?> classToSearch, Class<?> interfaceToFind)
Given a class and an interfaces, go through the class hierarchy to find the interface and return its type arguments.- Parameters:
classToSearch
-interfaceToFind
-- Returns:
- type arguments of the interface
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findParameterizedTypes
public static Type[] findParameterizedTypes(Class<?> root, Class<?> searchedFor)
Search for the given interface or class within the root's class/interface hierarchy. If the searched for class/interface is a generic return an array of real types that fill it out.- Parameters:
root
-searchedFor
-- Returns:
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findClassParameterizedTypes
public static Type[] findClassParameterizedTypes(Class<?> root, ParameterizedType rootType, Class<?> searchedForClass)
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findInterfaceParameterizedTypes
public static Type[] findInterfaceParameterizedTypes(Class<?> root, ParameterizedType rootType, Class<?> searchedForInterface)
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