jdk8-mips64-public/langtools: src/share/classes/javax/lang/model/util/Elements.java@2eb010b6cb22 (annotated)

src/share/classes/javax/lang/model/util/Elements.java@2eb010b6cb22 (annotated)

src/share/classes/javax/lang/model/util/Elements.java

Thu, 31 Aug 2017 15:17:03 +0800

author: aoqi
date: Thu, 31 Aug 2017 15:17:03 +0800
changeset 2525: 2eb010b6cb22
parent 1777: 3bd22f99d408
parent 0: 959103a6100f
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package javax.lang.model.util;
 import java.util.List;
 import java.util.Map;
 import javax.lang.model.element.*;
 import javax.lang.model.type.*;
 /**
  * Utility methods for operating on program elements.
  *
  * <p><b>Compatibility Note:</b> Methods may be added to this interface
  * in future releases of the platform.
  *
  * @author Joseph D. Darcy
  * @author Scott Seligman
  * @author Peter von der Ah&eacute;
  * @see javax.annotation.processing.ProcessingEnvironment#getElementUtils
  * @since 1.6
  */
 public interface Elements {
     /**
      * Returns a package given its fully qualified name.
      *
      * @param name  fully qualified package name, or "" for an unnamed package
      * @return the named package, or {@code null} if it cannot be found
      */
     PackageElement getPackageElement(CharSequence name);
     /**
      * Returns a type element given its canonical name.
      *
      * @param name  the canonical name
      * @return the named type element, or {@code null} if it cannot be found
      */
     TypeElement getTypeElement(CharSequence name);
     /**
      * Returns the values of an annotation's elements, including defaults.
      *
      * @see AnnotationMirror#getElementValues()
      * @param a  annotation to examine
      * @return the values of the annotation's elements, including defaults
      */
     Map<? extends ExecutableElement, ? extends AnnotationValue>
             getElementValuesWithDefaults(AnnotationMirror a);
     /**
      * Returns the text of the documentation (&quot;Javadoc&quot;)
      * comment of an element.
      *
      * <p> A documentation comment of an element is a comment that
      * begins with "{@code /**}" , ends with a separate
      * "<code>*&#47;</code>", and immediately precedes the element,
      * ignoring white space.  Therefore, a documentation comment
      * contains at least three"{@code *}" characters.  The text
      * returned for the documentation comment is a processed form of
      * the comment as it appears in source code.  The leading "{@code
      * /**}" and trailing "<code>*&#47;</code>" are removed.  For lines
      * of the comment starting after the initial "{@code /**}",
      * leading white space characters are discarded as are any
      * consecutive "{@code *}" characters appearing after the white
      * space or starting the line.  The processed lines are then
      * concatenated together (including line terminators) and
      * returned.
      *
      * @param e  the element being examined
      * @return the documentation comment of the element, or {@code null}
      *          if there is none
      * @jls 3.6 White Space
      */
     String getDocComment(Element e);
     /**
      * Returns {@code true} if the element is deprecated, {@code false} otherwise.
      *
      * @param e  the element being examined
      * @return {@code true} if the element is deprecated, {@code false} otherwise
      */
     boolean isDeprecated(Element e);
     /**
      * Returns the <i>binary name</i> of a type element.
      *
      * @param type  the type element being examined
      * @return the binary name
      *
      * @see TypeElement#getQualifiedName
      * @jls 13.1 The Form of a Binary
      */
     Name getBinaryName(TypeElement type);
     /**
      * Returns the package of an element.  The package of a package is
      * itself.
      *
      * @param type the element being examined
      * @return the package of an element
      */
     PackageElement getPackageOf(Element type);
     /**
      * Returns all members of a type element, whether inherited or
      * declared directly.  For a class the result also includes its
      * constructors, but not local or anonymous classes.
      *
      * <p>Note that elements of certain kinds can be isolated using
      * methods in {@link ElementFilter}.
      *
      * @param type  the type being examined
      * @return all members of the type
      * @see Element#getEnclosedElements
      */
     List<? extends Element> getAllMembers(TypeElement type);
     /**
      * Returns all annotations <i>present</i> on an element, whether
      * directly present or present via inheritance.
      *
      * @param e  the element being examined
      * @return all annotations of the element
      * @see Element#getAnnotationMirrors
      * @see javax.lang.model.AnnotatedConstruct
      */
     List<? extends AnnotationMirror> getAllAnnotationMirrors(Element e);
     /**
      * Tests whether one type, method, or field hides another.
      *
      * @param hider   the first element
      * @param hidden  the second element
      * @return {@code true} if and only if the first element hides
      *          the second
      */
     boolean hides(Element hider, Element hidden);
     /**
      * Tests whether one method, as a member of a given type,
      * overrides another method.
      * When a non-abstract method overrides an abstract one, the
      * former is also said to <i>implement</i> the latter.
      *
      * <p> In the simplest and most typical usage, the value of the
      * {@code type} parameter will simply be the class or interface
      * directly enclosing {@code overrider} (the possibly-overriding
      * method).  For example, suppose {@code m1} represents the method
      * {@code String.hashCode} and {@code m2} represents {@code
      * Object.hashCode}.  We can then ask whether {@code m1} overrides
      * {@code m2} within the class {@code String} (it does):
      *
      * <blockquote>
      * {@code assert elements.overrides(m1, m2,
      *          elements.getTypeElement("java.lang.String")); }
      * </blockquote>
      *
      * A more interesting case can be illustrated by the following example
      * in which a method in type {@code A} does not override a
      * like-named method in type {@code B}:
      *
      * <blockquote>
      * {@code class A { public void m() {} } }<br>
      * {@code interface B { void m(); } }<br>
      * ...<br>
      * {@code m1 = ...;  // A.m }<br>
      * {@code m2 = ...;  // B.m }<br>
      * {@code assert ! elements.overrides(m1, m2,
      *          elements.getTypeElement("A")); }
      * </blockquote>
      *
      * When viewed as a member of a third type {@code C}, however,
      * the method in {@code A} does override the one in {@code B}:
      *
      * <blockquote>
      * {@code class C extends A implements B {} }<br>
      * ...<br>
      * {@code assert elements.overrides(m1, m2,
      *          elements.getTypeElement("C")); }
      * </blockquote>
      *
      * @param overrider  the first method, possible overrider
      * @param overridden  the second method, possibly being overridden
      * @param type   the type of which the first method is a member
      * @return {@code true} if and only if the first method overrides
      *          the second
      * @jls 8.4.8 Inheritance, Overriding, and Hiding
      * @jls 9.4.1 Inheritance and Overriding
      */
     boolean overrides(ExecutableElement overrider, ExecutableElement overridden,
                       TypeElement type);
     /**
      * Returns the text of a <i>constant expression</i> representing a
      * primitive value or a string.
      * The text returned is in a form suitable for representing the value
      * in source code.
      *
      * @param value  a primitive value or string
      * @return the text of a constant expression
      * @throws IllegalArgumentException if the argument is not a primitive
      *          value or string
      *
      * @see VariableElement#getConstantValue()
      */
     String getConstantExpression(Object value);
     /**
      * Prints a representation of the elements to the given writer in
      * the specified order.  The main purpose of this method is for
      * diagnostics.  The exact format of the output is <em>not</em>
      * specified and is subject to change.
      *
      * @param w the writer to print the output to
      * @param elements the elements to print
      */
     void printElements(java.io.Writer w, Element... elements);
     /**
      * Return a name with the same sequence of characters as the
      * argument.
      *
      * @param cs the character sequence to return as a name
      * @return a name with the same sequence of characters as the argument
      */
     Name getName(CharSequence cs);
     /**
      * Returns {@code true} if the type element is a functional interface, {@code false} otherwise.
      *
      * @param type the type element being examined
      * @return {@code true} if the element is a functional interface, {@code false} otherwise
      * @jls 9.8 Functional Interfaces
      * @since 1.8
      */
     boolean isFunctionalInterface(TypeElement type);
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/javax/lang/model/util/Elements.java@2eb010b6cb22 (annotated)

src/share/classes/javax/lang/model/util/Elements.java