Package java.lang.reflect

Interface ParameterizedType

All Superinterfaces:
Type
All Known Implementing Classes:
ParameterizedTypeImpl
public interface ParameterizedType
extends Type
This interface represents a parameterized type such as 'Set<String>'.
Since:
1.5

  • Method Summary

    Modifier and Type Method Description
    Type[] getActualTypeArguments()
    Returns an array of the actual type arguments for this type.
    Type getOwnerType()
    Returns the parent / owner type, if this type is an inner type, otherwise null is returned if this is a top-level type.
    Type getRawType()
    Returns the declaring type of this parameterized type.

  • Method Details

    • getActualTypeArguments

      Type[] getActualTypeArguments()
      Returns an array of the actual type arguments for this type.

      If this type models a non parameterized type nested within a parameterized type, this method returns a zero length array. The generic type of the following field declaration is an example for a parameterized type without type arguments. 

       A<String>.B field;

 class A<T> {
     class B {
     }
 }
      Returns:
      the actual type arguments
      Throws:
      TypeNotPresentException - if one of the type arguments cannot be found
      MalformedParameterizedTypeException - if one of the type arguments cannot be instantiated for some reason

    • getOwnerType

      Type getOwnerType()
      Returns the parent / owner type, if this type is an inner type, otherwise null is returned if this is a top-level type.
      Returns:
      the owner type or null if this is a top-level type
      Throws:
      TypeNotPresentException - if one of the type arguments cannot be found
      MalformedParameterizedTypeException - if the owner type cannot be instantiated for some reason

    • getRawType

      Type getRawType()
      Returns the declaring type of this parameterized type.

      The raw type of Set<String> field; is Set.

      Returns:
      the raw type of this parameterized type