Interface WildcardType
- All Superinterfaces:
Type
public interface WildcardType extends Type
WildcardType represents a wildcard type expression, such as ?
, ? extends Number
, or ? super Integer
.
- Since:
- 1.5
Method Summary
Modifier and Type | Method | Description |
---|---|---|
Type[] | getLowerBounds() | Returns an array of |
Type[] | getUpperBounds() | Returns an array of |
Methods declared in interface java.lang.reflect.Type
getTypeName
Method Detail
getUpperBounds
Type[] getUpperBounds()
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.
- 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
getLowerBounds
Type[] getLowerBounds()
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.
- 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