NonNull.java revision bbc75f34e6b43c8310fb1deff02b0508acdf9659
1/* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package android.annotation; 17 18import java.lang.annotation.Retention; 19import java.lang.annotation.Target; 20 21import static java.lang.annotation.ElementType.FIELD; 22import static java.lang.annotation.ElementType.METHOD; 23import static java.lang.annotation.ElementType.PARAMETER; 24import static java.lang.annotation.RetentionPolicy.SOURCE; 25 26/** 27 * Denotes that a parameter, field or method return value can never be null. 28 * <p> 29 * This is a marker annotation and it has no specific attributes. 30 * 31 * @hide 32 */ 33@Retention(SOURCE) 34@Target({METHOD, PARAMETER, FIELD}) 35public @interface NonNull { 36} 37