public interface WildcardType extends Type
WildcardType represents a wildcard type expression, such as ?
, ? extends Number
, or ? super Integer
.
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 :
ParameterizedType
for the details of the creation process for parameterized types). TypeNotPresentException
- if any of the bounds refers to a non-existent type declarationMalformedParameterizedTypeException
- if any of the bounds refer to a parameterized type that cannot be instantiated for any reasonType[] 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 :
ParameterizedType
for the details of the creation process for parameterized types). TypeNotPresentException
- if any of the bounds refers to a non-existent type declarationMalformedParameterizedTypeException
- if any of the bounds refer to a parameterized type that cannot be instantiated for any reason
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