1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/emul/src/main/java/java/lang/reflect/AnnotatedElement.java Tue Dec 04 14:08:19 2012 +0100
1.3 @@ -0,0 +1,112 @@
1.4 +/*
1.5 + * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package java.lang.reflect;
1.30 +
1.31 +import java.lang.annotation.Annotation;
1.32 +
1.33 +/**
1.34 + * Represents an annotated element of the program currently running in this
1.35 + * VM. This interface allows annotations to be read reflectively. All
1.36 + * annotations returned by methods in this interface are immutable and
1.37 + * serializable. It is permissible for the caller to modify the
1.38 + * arrays returned by accessors for array-valued enum members; it will
1.39 + * have no affect on the arrays returned to other callers.
1.40 + *
1.41 + * <p>If an annotation returned by a method in this interface contains
1.42 + * (directly or indirectly) a {@link Class}-valued member referring to
1.43 + * a class that is not accessible in this VM, attempting to read the class
1.44 + * by calling the relevant Class-returning method on the returned annotation
1.45 + * will result in a {@link TypeNotPresentException}.
1.46 + *
1.47 + * <p>Similarly, attempting to read an enum-valued member will result in
1.48 + * a {@link EnumConstantNotPresentException} if the enum constant in the
1.49 + * annotation is no longer present in the enum type.
1.50 + *
1.51 + * <p>Finally, Attempting to read a member whose definition has evolved
1.52 + * incompatibly will result in a {@link
1.53 + * java.lang.annotation.AnnotationTypeMismatchException} or an
1.54 + * {@link java.lang.annotation.IncompleteAnnotationException}.
1.55 + *
1.56 + * @see java.lang.EnumConstantNotPresentException
1.57 + * @see java.lang.TypeNotPresentException
1.58 + * @see java.lang.annotation.AnnotationFormatError
1.59 + * @see java.lang.annotation.AnnotationTypeMismatchException
1.60 + * @see java.lang.annotation.IncompleteAnnotationException
1.61 + * @since 1.5
1.62 + * @author Josh Bloch
1.63 + */
1.64 +public interface AnnotatedElement {
1.65 + /**
1.66 + * Returns true if an annotation for the specified type
1.67 + * is present on this element, else false. This method
1.68 + * is designed primarily for convenient access to marker annotations.
1.69 + *
1.70 + * @param annotationClass the Class object corresponding to the
1.71 + * annotation type
1.72 + * @return true if an annotation for the specified annotation
1.73 + * type is present on this element, else false
1.74 + * @throws NullPointerException if the given annotation class is null
1.75 + * @since 1.5
1.76 + */
1.77 + boolean isAnnotationPresent(Class<? extends Annotation> annotationClass);
1.78 +
1.79 + /**
1.80 + * Returns this element's annotation for the specified type if
1.81 + * such an annotation is present, else null.
1.82 + *
1.83 + * @param annotationClass the Class object corresponding to the
1.84 + * annotation type
1.85 + * @return this element's annotation for the specified annotation type if
1.86 + * present on this element, else null
1.87 + * @throws NullPointerException if the given annotation class is null
1.88 + * @since 1.5
1.89 + */
1.90 + <T extends Annotation> T getAnnotation(Class<T> annotationClass);
1.91 +
1.92 + /**
1.93 + * Returns all annotations present on this element. (Returns an array
1.94 + * of length zero if this element has no annotations.) The caller of
1.95 + * this method is free to modify the returned array; it will have no
1.96 + * effect on the arrays returned to other callers.
1.97 + *
1.98 + * @return all annotations present on this element
1.99 + * @since 1.5
1.100 + */
1.101 + Annotation[] getAnnotations();
1.102 +
1.103 + /**
1.104 + * Returns all annotations that are directly present on this
1.105 + * element. Unlike the other methods in this interface, this method
1.106 + * ignores inherited annotations. (Returns an array of length zero if
1.107 + * no annotations are directly present on this element.) The caller of
1.108 + * this method is free to modify the returned array; it will have no
1.109 + * effect on the arrays returned to other callers.
1.110 + *
1.111 + * @return All annotations directly present on this element
1.112 + * @since 1.5
1.113 + */
1.114 + Annotation[] getDeclaredAnnotations();
1.115 +}