author | darcy |
Tue, 06 Sep 2011 21:19:31 -0700 | |
changeset 10433 | 3154f134c8d9 |
parent 5506 | 202f599c92aa |
child 14342 | 8435a30053c1 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.lang.reflect; |
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/** |
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* TypeVariable is the common superinterface for type variables of kinds. |
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* A type variable is created the first time it is needed by a reflective |
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* method, as specified in this package. If a type variable t is referenced |
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* by a type (i.e, class, interface or annotation type) T, and T is declared |
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* by the nth enclosing class of T (see JLS 8.1.2), then the creation of t |
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* requires the resolution (see JVMS 5) of the ith enclosing class of T, |
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* for i = 0 to n, inclusive. Creating a type variable must not cause the |
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* creation of its bounds. Repeated creation of a type variable has no effect. |
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* |
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* <p>Multiple objects may be instantiated at run-time to |
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* represent a given type variable. Even though a type variable is |
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* created only once, this does not imply any requirement to cache |
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* instances representing the type variable. However, all instances |
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* representing a type variable must be equal() to each other. |
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* As a consequence, users of type variables must not rely on the identity |
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* of instances of classes implementing this interface. |
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* |
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* @param <D> the type of generic declaration that declared the |
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* underlying type variable. |
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* |
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* @since 1.5 |
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*/ |
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10433
3154f134c8d9
7086192: (reflect) Have TypeVariable extend AnnotatedElement
darcy
parents:
5506
diff
changeset
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public interface TypeVariable<D extends GenericDeclaration> extends Type, AnnotatedElement { |
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/** |
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* Returns an array of {@code Type} objects representing the |
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* upper bound(s) of this type variable. Note that if no upper bound is |
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* explicitly declared, the upper bound is {@code Object}. |
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* |
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* <p>For each upper bound B: <ul> <li>if B is a parameterized |
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* type or a type variable, it is created, (see {@link |
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* java.lang.reflect.ParameterizedType ParameterizedType} for the |
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* details of the creation process for parameterized types). |
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* <li>Otherwise, B is resolved. </ul> |
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* |
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* @throws TypeNotPresentException if any of the |
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* bounds refers to a non-existent type declaration |
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* @throws MalformedParameterizedTypeException if any of the |
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* bounds refer to a parameterized type that cannot be instantiated |
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* for any reason |
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* @return an array of {@code Type}s representing the upper |
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* bound(s) of this type variable |
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*/ |
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Type[] getBounds(); |
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/** |
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* Returns the {@code GenericDeclaration} object representing the |
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* generic declaration declared this type variable. |
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* |
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* @return the generic declaration declared for this type variable. |
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* |
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* @since 1.5 |
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*/ |
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D getGenericDeclaration(); |
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/** |
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* Returns the name of this type variable, as it occurs in the source code. |
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* |
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* @return the name of this type variable, as it appears in the source code |
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*/ |
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String getName(); |
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} |