1 /* 2 * Copyright (C) 2015 The Dagger Authors. 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 */ 16 17 package dagger.multibindings; 18 19 import static java.lang.annotation.RetentionPolicy.RUNTIME; 20 21 import dagger.MapKey; 22 import java.lang.annotation.Documented; 23 import java.lang.annotation.ElementType; 24 import java.lang.annotation.Retention; 25 import java.lang.annotation.Target; 26 27 /** A {@link MapKey} annotation for maps with {@code int} keys. */ 28 @Documented 29 // While METHOD is the only valid target for Dagger, FIELD was added to support Hilt's 30 // @BindValueIntoMap and TYPE was added to support external extension types since it likely won't 31 // cause confusion/maintenance issues as this isn't part of Dagger's core API. 32 // See discussion on https://github.com/google/dagger/pull/2831#issuecomment-919417457 for details. 33 @Target({ElementType.METHOD, ElementType.FIELD, ElementType.TYPE}) 34 @Retention(RUNTIME) 35 @MapKey 36 public @interface IntKey { value()37 int value(); 38 } 39