1 /* 2 * Copyright (C) 2006 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 17 package com.google.inject; 18 19 import static java.lang.annotation.ElementType.ANNOTATION_TYPE; 20 import static java.lang.annotation.RetentionPolicy.RUNTIME; 21 22 import java.lang.annotation.Retention; 23 import java.lang.annotation.Target; 24 25 /** 26 * Annotates annotations which are used for binding. Only one such annotation may apply to a single 27 * injection point. You must also annotate binder annotations with {@code @Retention(RUNTIME)}. For 28 * example: 29 * 30 * <pre> 31 * {@code @}Retention(RUNTIME) 32 * {@code @}Target({ FIELD, PARAMETER, METHOD }) 33 * {@code @}BindingAnnotation 34 * public {@code @}interface Transactional {} 35 * </pre> 36 * 37 * @author crazybob@google.com (Bob Lee) 38 */ 39 @Target(ANNOTATION_TYPE) 40 @Retention(RUNTIME) 41 public @interface BindingAnnotation {} 42