1 /* 2 * Copyright (C) 2015 Google, Inc. 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 package dagger.mapkeys; 17 18 import dagger.MapKey; 19 import java.lang.annotation.Documented; 20 import java.lang.annotation.Target; 21 22 import static java.lang.annotation.ElementType.METHOD; 23 24 /** 25 * A {@link MapKey} annotation for maps with {@code Class<?>} keys. 26 * 27 * <p>If your map's keys can be constrained, consider using a custom annotation instead, with a 28 * member whose type is {@code Class<? extends Something>}. 29 */ 30 @Documented 31 @Target(METHOD) 32 @MapKey 33 public @interface ClassKey { value()34 Class<?> value(); 35 }