javax.lang.model.type: public interface: TypeVariable

javax.lang.model.type
public interface: TypeVariable [javadoc | source]

All Implemented Interfaces:
ReferenceType

Represents a type variable. A type variable may be explicitly declared by a {@linkplain TypeParameterElement type parameter} of a type, method, or constructor. A type variable may also be declared implicitly, as by the capture conversion of a wildcard type argument (see chapter 5 of The Java Language Specification, Third Edition).

Also see:

TypeParameterElement

author: Joseph - D. Darcy

author: Scott - Seligman

author: Peter - von der Ahé

since: 1.6 -

Method from javax.lang.model.type.TypeVariable Summary:
asElement, getLowerBound, getUpperBound

Method from javax.lang.model.type.TypeVariable Detail:
public Element asElement() Returns the element corresponding to this type variable.
public TypeMirror getLowerBound() Returns the lower bound of this type variable. While a type parameter cannot include an explicit lower bound declaration, capture conversion can produce a type variable with a non-trivial lower bound. Type variables otherwise have a lower bound of NullType .
public TypeMirror getUpperBound() Returns the upper bound of this type variable. If this type variable was declared with no explicit upper bounds, the result is {@code java.lang.Object}. If it was declared with multiple upper bounds, the result is an intersection type (modeled as a DeclaredType ). Individual bounds can be found by examining the result's {@linkplain Types#directSupertypes(TypeMirror) supertypes}.

Method from javax.lang.model.type.TypeVariable Detail:

 public Element asElement()Returns the element corresponding to this type variable.

 public TypeMirror getLowerBound()Returns the lower bound of this type variable.  While a type
parameter cannot include an explicit lower bound declaration,
capture conversion can produce a type variable with a
non-trivial lower bound.  Type variables otherwise have a
lower bound of NullType .

 public TypeMirror getUpperBound()Returns the upper bound of this type variable.

 If this type variable was declared with no explicit
upper bounds, the result is {@code java.lang.Object}.
If it was declared with multiple upper bounds,
the result is an intersection type (modeled as a
DeclaredType ).
Individual bounds can be found by examining the result's
{@linkplain Types#directSupertypes(TypeMirror) supertypes}.