Added in API level 1

WildcardType

interface WildcardType : Type
java.lang.reflect.WildcardType

WildcardType represents a wildcard type expression, such as ?, ? extends Number, or ? super Integer.

Summary

Public methods
abstract Array<Type!>

Returns an array of Type objects representing the lower bound(s) of this type variable.
abstract Array<Type!>

Returns an array of Type objects representing the upper bound(s) of this type variable.
Inherited functions

Public methods

getLowerBounds

Added in API level 1
abstract fun getLowerBounds(): Array<Type!>

Returns an array of Type objects representing the lower bound(s) of this type variable. If no lower bound is explicitly declared, the lower bound is the type of null. In this case, a zero length array is returned.

For each lower bound B :

  • if B is a parameterized type or a type variable, it is created, (see ParameterizedType for the details of the creation process for parameterized types).
  • Otherwise, B is resolved.
Return
Array<Type!> an array of Types representing the lower bound(s) of this type variable
Exceptions
java.lang.TypeNotPresentException if any of the bounds refers to a non-existent type declaration
java.lang.reflect.MalformedParameterizedTypeException if any of the bounds refer to a parameterized type that cannot be instantiated for any reason

getUpperBounds

Added in API level 1
abstract fun getUpperBounds(): Array<Type!>

Returns an array of Type objects representing the upper bound(s) of this type variable. If no upper bound is explicitly declared, the upper bound is Object.

For each upper bound B :

  • if B is a parameterized type or a type variable, it is created, (see ParameterizedType for the details of the creation process for parameterized types).
  • Otherwise, B is resolved.
Return
Array<Type!> an array of Types representing the upper bound(s) of this type variable
Exceptions
java.lang.TypeNotPresentException if any of the bounds refers to a non-existent type declaration
java.lang.reflect.MalformedParameterizedTypeException if any of the bounds refer to a parameterized type that cannot be instantiated for any reason