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 Detail

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