PackageElement.java revision 3936:ec4be8a26914 
1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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24 */
25
26package javax.lang.model.element;
27
28import java.util.List;
29
30/**
31 * Represents a package program element.  Provides access to information
32 * about the package and its members.
33 *
34 * @author Joseph D. Darcy
35 * @author Scott Seligman
36 * @author Peter von der Ahé
37 * @see javax.lang.model.util.Elements#getPackageOf
38 * @since 1.6
39 */
40public interface PackageElement extends Element, QualifiedNameable {
41
42    /**
43     * Returns the fully qualified name of this package.
44     * This is also known as the package's <i>canonical</i> name.
45     * For an {@linkplain #isUnnamed() unnamed package}, an empty name is returned.
46     *
47     * @return the fully qualified name of this package, or an
48     * empty name if this is an unnamed package
49     * @jls 6.7 Fully Qualified Names and Canonical Names
50     */
51    Name getQualifiedName();
52
53    /**
54     * Returns the simple name of this package.  For an {@linkplain
55     * #isUnnamed() unnamed package}, an empty name is returned.
56     *
57     * @return the simple name of this package or an empty name if
58     * this is an unnamed package
59     */
60    @Override
61    Name getSimpleName();
62
63    /**
64     * Returns the {@linkplain NestingKind#TOP_LEVEL top-level}
65     * classes and interfaces within this package.  Note that
66     * subpackages are <em>not</em> considered to be enclosed by a
67     * package.
68     *
69     * @return the top-level classes and interfaces within this
70     * package
71     */
72    @Override
73    List<? extends Element> getEnclosedElements();
74
75    /**
76     * Returns {@code true} if this is an unnamed package and {@code
77     * false} otherwise.
78     *
79     * @return {@code true} if this is an unnamed package and {@code
80     * false} otherwise
81     * @jls 7.4.2 Unnamed Packages
82     */
83    boolean isUnnamed();
84
85    /**
86     * Returns the enclosing module.
87     *
88     * @return the enclosing module
89     */
90    @Override
91    Element getEnclosingElement();
92}
93