| /******************************************************************************* |
| * Copyright (c) 2011 Stephan Herrmann. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Stephan Herrmann - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.annotation; |
| |
| import static java.lang.annotation.ElementType.*; |
| import java.lang.annotation.*; |
| |
| /** |
| * <blockquote> |
| * This annotation is intended for use by the Eclipse Java Compiler in order to |
| * support intra-procedural null analysis. Please see the original |
| * <a href="http://bugs.eclipse.org/bugs/186342">Bug 186342- [compiler][null] Using annotations for null checking</a> |
| * and the <a href="http://wiki.eclipse.org/JDT_Core/Null_Analysis">Wiki page</a> |
| * for status and availability of the implementation of these analyses. |
| * </blockquote> |
| * <p> |
| * This annotation can be applied to a package or a type in order to define that |
| * all contained entities for which a null annotation is otherwise lacking |
| * should be considered as {@link NonNull @NonNull}. |
| * <dl> |
| * <dt>Interaction with inheritance</dt> |
| * <dd>The rules regarding inheritance are applied <em>after</em> the applicable default |
| * has been applied to all types lacking an annotation.</dd> |
| * <dt>Nested defaults</dt> |
| * <dd>If a <code>@NonNullByDefault</code> |
| * annotation is used within the scope of a {@link NullableByDefault @NullableByDefault} |
| * annotation (or a project wide default setting) the inner most annotation defines the |
| * default applicable at any given position.</dd> |
| * </dl> |
| * Note that for applying an annotation to a package a file by the name |
| * <code>package-info.java</code> is used. |
| * |
| * @author stephan |
| */ |
| @Retention(RetentionPolicy.CLASS) |
| @Target({PACKAGE,TYPE,METHOD,CONSTRUCTOR}) |
| public @interface NonNullByDefault { |
| boolean value() default true; |
| } |