Package org.jboss.resteasy.util

Class Types

  • public class Types
extends java.lang.Object
    Type conversions and generic type manipulations
    Version:
    $Revision: 1 $

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static java.lang.reflect.Type[] EMPTY_TYPE_ARRAY  

    • Constructor Summary

      Constructors 
      Constructor Description
      Types()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      private static java.lang.reflect.Type[] extractTypes​(java.util.Map<java.lang.String,​java.lang.reflect.Type> typeVarMap, java.lang.reflect.Type genericSub)  
      private static java.lang.reflect.Type[] extractTypeVariables​(java.util.Map<java.lang.String,​java.lang.reflect.Type> typeVarMap, java.lang.reflect.Type[] types)  
      static java.lang.reflect.Type[] findClassParameterizedTypes​(java.lang.Class<?> root, java.lang.reflect.ParameterizedType rootType, java.lang.Class<?> searchedForClass)  
      static java.lang.reflect.Type[] findInterfaceParameterizedTypes​(java.lang.Class<?> root, java.lang.reflect.ParameterizedType rootType, java.lang.Class<?> searchedForInterface)  
      static java.lang.reflect.Type[] findParameterizedTypes​(java.lang.Class<?> root, java.lang.Class<?> searchedFor)
      Search for the given interface or class within the root's class/interface hierarchy.
      static java.lang.reflect.Type[] getActualTypeArgumentsOfAnInterface​(java.lang.Class<?> classToSearch, java.lang.Class<?> interfaceToFind)
      Given a class and an interfaces, go through the class hierarchy to find the interface and return its type arguments.
      static java.lang.Class getArgumentType​(java.lang.reflect.ParameterizedType pType, int index)
      Gets the index-th type argument.
      static java.lang.Class getCollectionBaseType​(java.lang.Class type, java.lang.reflect.Type genericType)  
      static java.lang.reflect.Method getImplementingMethod​(java.lang.Class clazz, java.lang.reflect.Method intfMethod)
      Given a method and a root class, find the actual method declared in the root that implements the method.
      static java.lang.Class getMapKeyType​(java.lang.reflect.Type genericType)  
      static java.lang.Class getMapValueType​(java.lang.reflect.Type genericType)  
      static java.lang.Class<?> getRawType​(java.lang.reflect.Type type)  
      static java.lang.Class<?> getRawTypeNoException​(java.lang.reflect.Type type)  
      static java.lang.Class getTemplateParameterOfInterface​(java.lang.Class base, java.lang.Class desiredInterface)  
      static java.lang.Class<?> getTypeArgument​(java.lang.reflect.Type genericType)
      Returns the type argument from a parameterized type
      static boolean isA​(java.lang.Class clazz, java.lang.reflect.ParameterizedType pType)
      Is the genericType of a certain class?
      static boolean isCompatible​(java.lang.reflect.Method method, java.lang.reflect.Method intfMethod)
      See if the two methods are compatible, that is they have the same relative signature
      private static java.util.Map<java.lang.String,​java.lang.reflect.Type> populateParameterizedMap​(java.lang.Class<?> root, java.lang.reflect.ParameterizedType rootType)  
      private static java.lang.reflect.Type[] recurseSuperclassForInterface​(java.lang.Class<?> searchedForInterface, java.util.Map<java.lang.String,​java.lang.reflect.Type> typeVarMap, java.lang.reflect.Type genericSub, java.lang.Class<?> sub)  
      static java.lang.reflect.Type resolveTypeVariable​(java.lang.Class<?> root, java.lang.reflect.TypeVariable<?> typeVariable)
      Finds an actual value of a type variable.
      static java.lang.reflect.Type resolveTypeVariables​(java.lang.Class<?> root, java.lang.reflect.Type type)  
      private static java.lang.Object searchForInterfaceTemplateParameter​(java.lang.Class base, java.lang.Class desiredInterface)  

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • EMPTY_TYPE_ARRAY

        private static final java.lang.reflect.Type[] EMPTY_TYPE_ARRAY

    • Constructor Detail

      • Types

        public Types()

    • Method Detail

      • isA

        public static boolean isA​(java.lang.Class clazz,
                          java.lang.reflect.ParameterizedType pType)
        Is the genericType of a certain class?

      • getArgumentType

        public static java.lang.Class getArgumentType​(java.lang.reflect.ParameterizedType pType,
                                              int index)
        Gets the index-th type argument.

      • getTemplateParameterOfInterface

        public static java.lang.Class getTemplateParameterOfInterface​(java.lang.Class base,
                                                              java.lang.Class desiredInterface)

      • searchForInterfaceTemplateParameter

        private static java.lang.Object searchForInterfaceTemplateParameter​(java.lang.Class base,
                                                                    java.lang.Class desiredInterface)

      • isCompatible

        public static boolean isCompatible​(java.lang.reflect.Method method,
                                   java.lang.reflect.Method intfMethod)
        See if the two methods are compatible, that is they have the same relative signature
        Parameters:
        method -
        intfMethod -
        Returns:

      • getImplementingMethod

        public static java.lang.reflect.Method getImplementingMethod​(java.lang.Class clazz,
                                                             java.lang.reflect.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:

      • getRawType

        public static java.lang.Class<?> getRawType​(java.lang.reflect.Type type)

      • getRawTypeNoException

        public static java.lang.Class<?> getRawTypeNoException​(java.lang.reflect.Type type)

      • getTypeArgument

        public static java.lang.Class<?> getTypeArgument​(java.lang.reflect.Type genericType)
        Returns the type argument from a parameterized type
        Parameters:
        genericType -
        Returns:
        null if there is no type parameter

      • getCollectionBaseType

        public static java.lang.Class getCollectionBaseType​(java.lang.Class type,
                                                    java.lang.reflect.Type genericType)

      • getMapKeyType

        public static java.lang.Class getMapKeyType​(java.lang.reflect.Type genericType)

      • getMapValueType

        public static java.lang.Class getMapValueType​(java.lang.reflect.Type genericType)

      • resolveTypeVariables

        public static java.lang.reflect.Type resolveTypeVariables​(java.lang.Class<?> root,
                                                          java.lang.reflect.Type type)

      • resolveTypeVariable

        public static java.lang.reflect.Type resolveTypeVariable​(java.lang.Class<?> root,
                                                         java.lang.reflect.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

      • getActualTypeArgumentsOfAnInterface

        public static java.lang.reflect.Type[] getActualTypeArgumentsOfAnInterface​(java.lang.Class<?> classToSearch,
                                                                           java.lang.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

      • findParameterizedTypes

        public static java.lang.reflect.Type[] findParameterizedTypes​(java.lang.Class<?> root,
                                                              java.lang.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:

      • findClassParameterizedTypes

        public static java.lang.reflect.Type[] findClassParameterizedTypes​(java.lang.Class<?> root,
                                                                   java.lang.reflect.ParameterizedType rootType,
                                                                   java.lang.Class<?> searchedForClass)

      • populateParameterizedMap

        private static java.util.Map<java.lang.String,​java.lang.reflect.Type> populateParameterizedMap​(java.lang.Class<?> root,
                                                                                                     java.lang.reflect.ParameterizedType rootType)

      • findInterfaceParameterizedTypes

        public static java.lang.reflect.Type[] findInterfaceParameterizedTypes​(java.lang.Class<?> root,
                                                                       java.lang.reflect.ParameterizedType rootType,
                                                                       java.lang.Class<?> searchedForInterface)

      • recurseSuperclassForInterface

        private static java.lang.reflect.Type[] recurseSuperclassForInterface​(java.lang.Class<?> searchedForInterface,
                                                                      java.util.Map<java.lang.String,​java.lang.reflect.Type> typeVarMap,
                                                                      java.lang.reflect.Type genericSub,
                                                                      java.lang.Class<?> sub)

      • extractTypeVariables

        private static java.lang.reflect.Type[] extractTypeVariables​(java.util.Map<java.lang.String,​java.lang.reflect.Type> typeVarMap,
                                                             java.lang.reflect.Type[] types)

      • extractTypes

        private static java.lang.reflect.Type[] extractTypes​(java.util.Map<java.lang.String,​java.lang.reflect.Type> typeVarMap,
                                                     java.lang.reflect.Type genericSub)