src/share/classes/javax/lang/model/element/TypeElement.java

Tue, 09 Oct 2012 19:10:00 -0700

author
jjg
date
Tue, 09 Oct 2012 19:10:00 -0700
changeset 1357
c75be5bc5283
parent 1181
cf2496340fef
child 1559
01af1b5c631d
permissions
-rw-r--r--

8000663: clean up langtools imports
Reviewed-by: darcy

duke@1 1 /*
darcy@1181 2 * Copyright (c) 2005, 2012, Oracle and/or its affiliates. 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
ohair@554 7 * published by the Free Software Foundation. Oracle designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
ohair@554 9 * by Oracle 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 *
ohair@554 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 22 * or visit www.oracle.com if you need additional information or have any
ohair@554 23 * questions.
duke@1 24 */
duke@1 25
duke@1 26 package javax.lang.model.element;
duke@1 27
duke@1 28 import java.util.List;
duke@1 29 import javax.lang.model.type.*;
duke@1 30 import javax.lang.model.util.*;
duke@1 31
duke@1 32 /**
duke@1 33 * Represents a class or interface program element. Provides access
duke@1 34 * to information about the type and its members. Note that an enum
duke@1 35 * type is a kind of class and an annotation type is a kind of
duke@1 36 * interface.
duke@1 37 *
duke@1 38 * <p> <a name="ELEM_VS_TYPE"></a>
duke@1 39 * While a {@code TypeElement} represents a class or interface
duke@1 40 * <i>element</i>, a {@link DeclaredType} represents a class
duke@1 41 * or interface <i>type</i>, the latter being a use
duke@1 42 * (or <i>invocation</i>) of the former.
duke@1 43 * The distinction is most apparent with generic types,
duke@1 44 * for which a single element can define a whole
duke@1 45 * family of types. For example, the element
duke@1 46 * {@code java.util.Set} corresponds to the parameterized types
duke@1 47 * {@code java.util.Set<String>} and {@code java.util.Set<Number>}
duke@1 48 * (and many others), and to the raw type {@code java.util.Set}.
duke@1 49 *
duke@1 50 * <p> Each method of this interface that returns a list of elements
duke@1 51 * will return them in the order that is natural for the underlying
duke@1 52 * source of program information. For example, if the underlying
duke@1 53 * source of information is Java source code, then the elements will be
duke@1 54 * returned in source code order.
duke@1 55 *
duke@1 56 * @author Joseph D. Darcy
duke@1 57 * @author Scott Seligman
duke@1 58 * @author Peter von der Ah&eacute;
duke@1 59 * @see DeclaredType
duke@1 60 * @since 1.6
duke@1 61 */
darcy@224 62 public interface TypeElement extends Element, Parameterizable, QualifiedNameable {
darcy@411 63 /**
darcy@1181 64 * Returns the fields, methods, constructors, and member types
darcy@1181 65 * that are directly declared in this class or interface.
darcy@1181 66 *
darcy@1181 67 * This includes any (implicit) default constructor and
darcy@1181 68 * the implicit {@code values} and {@code valueOf} methods of an
darcy@1181 69 * enum type.
darcy@411 70 *
darcy@411 71 * <p> Note that as a particular instance of the {@linkplain
darcy@411 72 * javax.lang.model.element general accuracy requirements} and the
darcy@411 73 * ordering behavior required of this interface, the list of
darcy@411 74 * enclosed elements will be returned in the natural order for the
darcy@411 75 * originating source of information about the type. For example,
darcy@411 76 * if the information about the type is originating from a source
darcy@411 77 * file, the elements will be returned in source code order.
darcy@411 78 * (However, in that case the the ordering of synthesized
darcy@411 79 * elements, such as a default constructor, is not specified.)
darcy@411 80 *
darcy@411 81 * @return the enclosed elements in proper order, or an empty list if none
darcy@411 82 */
darcy@1181 83 @Override
darcy@411 84 List<? extends Element> getEnclosedElements();
duke@1 85
duke@1 86 /**
duke@1 87 * Returns the <i>nesting kind</i> of this type element.
duke@1 88 *
duke@1 89 * @return the nesting kind of this type element
duke@1 90 */
duke@1 91 NestingKind getNestingKind();
duke@1 92
duke@1 93 /**
duke@1 94 * Returns the fully qualified name of this type element.
duke@1 95 * More precisely, it returns the <i>canonical</i> name.
duke@1 96 * For local and anonymous classes, which do not have canonical names,
duke@1 97 * an empty name is returned.
duke@1 98 *
duke@1 99 * <p>The name of a generic type does not include any reference
duke@1 100 * to its formal type parameters.
duke@1 101 * For example, the fully qualified name of the interface
duke@1 102 * {@code java.util.Set<E>} is "{@code java.util.Set}".
duke@1 103 * Nested types use "{@code .}" as a separator, as in
duke@1 104 * "{@code java.util.Map.Entry}".
duke@1 105 *
duke@1 106 * @return the fully qualified name of this class or interface, or
duke@1 107 * an empty name if none
duke@1 108 *
duke@1 109 * @see Elements#getBinaryName
jjh@972 110 * @jls 6.7 Fully Qualified Names and Canonical Names
duke@1 111 */
duke@1 112 Name getQualifiedName();
duke@1 113
darcy@849 114
darcy@849 115 /**
darcy@849 116 * Returns the simple name of this type element.
darcy@849 117 *
darcy@849 118 * For an anonymous class, an empty name is returned.
darcy@849 119 *
darcy@849 120 * @return the simple name of this class or interface,
darcy@849 121 * an empty name for an anonymous class
darcy@849 122 *
darcy@849 123 */
darcy@849 124 @Override
darcy@849 125 Name getSimpleName();
darcy@849 126
duke@1 127 /**
duke@1 128 * Returns the direct superclass of this type element.
duke@1 129 * If this type element represents an interface or the class
duke@1 130 * {@code java.lang.Object}, then a {@link NoType}
duke@1 131 * with kind {@link TypeKind#NONE NONE} is returned.
duke@1 132 *
duke@1 133 * @return the direct superclass, or a {@code NoType} if there is none
duke@1 134 */
duke@1 135 TypeMirror getSuperclass();
duke@1 136
duke@1 137 /**
duke@1 138 * Returns the interface types directly implemented by this class
duke@1 139 * or extended by this interface.
duke@1 140 *
duke@1 141 * @return the interface types directly implemented by this class
duke@1 142 * or extended by this interface, or an empty list if there are none
duke@1 143 */
duke@1 144 List<? extends TypeMirror> getInterfaces();
duke@1 145
duke@1 146 /**
duke@1 147 * Returns the formal type parameters of this type element
duke@1 148 * in declaration order.
duke@1 149 *
duke@1 150 * @return the formal type parameters, or an empty list
duke@1 151 * if there are none
duke@1 152 */
duke@1 153 List<? extends TypeParameterElement> getTypeParameters();
darcy@849 154
darcy@849 155
darcy@849 156 /**
darcy@849 157 * Returns the package of a top-level type and returns the
darcy@849 158 * immediately lexically enclosing element for a {@linkplain
darcy@849 159 * NestingKind#isNested nested} type.
darcy@849 160 *
darcy@849 161 * @return the package of a top-level type, the immediately
darcy@849 162 * lexically enclosing element for a nested type
darcy@849 163 */
darcy@849 164 @Override
darcy@849 165 Element getEnclosingElement();
duke@1 166 }

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