public interface
WildcardType
implements
Type
WildcardType represents a wildcard type expression, such as
?, ? extends Number, or ? super Integer.
Public Method Summary
| abstract Type[] |
getLowerBounds()
Returns an array of
Type objects representing the
lower bound(s) of this type variable. |
| abstract Type[] |
getUpperBounds()
Returns an array of
Type objects representing the upper
bound(s) of this type variable. |
Public Methods
public abstract Type[] getLowerBounds ()
Returns an array of Type objects representing the
lower bound(s) of this type variable. Note that 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
ParameterizedTypefor the details of the creation process for parameterized types). - Otherwise, B is resolved.
Returns
- an array of Types representing the lower bound(s) of this type variable
Throws
| TypeNotPresentException | if any of the bounds refers to a non-existent type declaration |
|---|---|
| MalformedParameterizedTypeException | if any of the bounds refer to a parameterized type that cannot be instantiated for any reason |
public abstract Type[] getUpperBounds ()
Returns an array of Type objects representing the upper
bound(s) of this type variable. Note that 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
ParameterizedTypefor the details of the creation process for parameterized types). - Otherwise, B is resolved.
Returns
- an array of Types representing the upper bound(s) of this type variable
Throws
| TypeNotPresentException | if any of the bounds refers to a non-existent type declaration |
|---|---|
| MalformedParameterizedTypeException | if any of the bounds refer to a parameterized type that cannot be instantiated for any reason |