Mercurial > jdk8-mips64-public > langtools / annotate
src/share/classes/javax/lang/model/type/TypeVariable.java@58fcba61a77d (annotated)
src/share/classes/javax/lang/model/type/TypeVariable.java
Fri, 06 Feb 2009 12:49:48 -0800
- author
- darcy
- date
- Fri, 06 Feb 2009 12:49:48 -0800
- changeset 216
- 58fcba61a77d
- parent 1
- 9a66ca7c79fa
- child 554
- 9d9f26857129
- permissions
- -rw-r--r--
6794071: Provide exception superclass for UnknownFooExceptions
Reviewed-by: jjg
| duke@1 | 1 | /* |
| duke@1 | 2 | * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. |
| duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@1 | 4 | * |
| duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@1 | 7 | * published by the Free Software Foundation. Sun designates this |
| duke@1 | 8 | * particular file as subject to the "Classpath" exception as provided |
| duke@1 | 9 | * by Sun in the LICENSE file that accompanied this code. |
| duke@1 | 10 | * |
| duke@1 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@1 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@1 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@1 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@1 | 15 | * accompanied this code). |
| duke@1 | 16 | * |
| duke@1 | 17 | * You should have received a copy of the GNU General Public License version |
| duke@1 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@1 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@1 | 20 | * |
| duke@1 | 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| duke@1 | 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| duke@1 | 23 | * have any questions. |
| duke@1 | 24 | */ |
| duke@1 | 25 | |
| duke@1 | 26 | package javax.lang.model.type; |
| duke@1 | 27 | |
| duke@1 | 28 | |
| duke@1 | 29 | import javax.lang.model.element.Element; |
| duke@1 | 30 | import javax.lang.model.element.TypeParameterElement; |
| duke@1 | 31 | import javax.lang.model.util.Types; |
| duke@1 | 32 | |
| duke@1 | 33 | |
| duke@1 | 34 | /** |
| duke@1 | 35 | * Represents a type variable. |
| duke@1 | 36 | * A type variable may be explicitly declared by a |
| duke@1 | 37 | * {@linkplain TypeParameterElement type parameter} of a |
| duke@1 | 38 | * type, method, or constructor. |
| duke@1 | 39 | * A type variable may also be declared implicitly, as by |
| duke@1 | 40 | * the capture conversion of a wildcard type argument |
| duke@1 | 41 | * (see chapter 5 of <i>The Java Language Specification, Third |
| duke@1 | 42 | * Edition</i>). |
| duke@1 | 43 | * |
| duke@1 | 44 | * @author Joseph D. Darcy |
| duke@1 | 45 | * @author Scott Seligman |
| duke@1 | 46 | * @author Peter von der Ahé |
| duke@1 | 47 | * @see TypeParameterElement |
| duke@1 | 48 | * @since 1.6 |
| duke@1 | 49 | */ |
| duke@1 | 50 | public interface TypeVariable extends ReferenceType { |
| duke@1 | 51 | |
| duke@1 | 52 | /** |
| duke@1 | 53 | * Returns the element corresponding to this type variable. |
| duke@1 | 54 | * |
| duke@1 | 55 | * @return the element corresponding to this type variable |
| duke@1 | 56 | */ |
| duke@1 | 57 | Element asElement(); |
| duke@1 | 58 | |
| duke@1 | 59 | /** |
| duke@1 | 60 | * Returns the upper bound of this type variable. |
| duke@1 | 61 | * |
| duke@1 | 62 | * <p> If this type variable was declared with no explicit |
| duke@1 | 63 | * upper bounds, the result is {@code java.lang.Object}. |
| duke@1 | 64 | * If it was declared with multiple upper bounds, |
| duke@1 | 65 | * the result is an intersection type (modeled as a |
| duke@1 | 66 | * {@link DeclaredType}). |
| duke@1 | 67 | * Individual bounds can be found by examining the result's |
| duke@1 | 68 | * {@linkplain Types#directSupertypes(TypeMirror) supertypes}. |
| duke@1 | 69 | * |
| duke@1 | 70 | * @return the upper bound of this type variable |
| duke@1 | 71 | */ |
| duke@1 | 72 | TypeMirror getUpperBound(); |
| duke@1 | 73 | |
| duke@1 | 74 | /** |
| duke@1 | 75 | * Returns the lower bound of this type variable. While a type |
| duke@1 | 76 | * parameter cannot include an explicit lower bound declaration, |
| duke@1 | 77 | * capture conversion can produce a type variable with a |
| duke@1 | 78 | * non-trivial lower bound. Type variables otherwise have a |
| duke@1 | 79 | * lower bound of {@link NullType}. |
| duke@1 | 80 | * |
| duke@1 | 81 | * @return the lower bound of this type variable |
| duke@1 | 82 | */ |
| duke@1 | 83 | TypeMirror getLowerBound(); |
| duke@1 | 84 | } |
