1 /* 2 * Copyright (C) 2008 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.spi; 18 19 import com.google.inject.Binding; 20 import com.google.inject.Key; 21 22 /** 23 * A binding to a linked key. The other key's binding is used to resolve injections. 24 * 25 * @author jessewilson@google.com (Jesse Wilson) 26 * @since 2.0 27 */ 28 public interface LinkedKeyBinding<T> extends Binding<T> { 29 30 /** 31 * Returns the linked key used to resolve injections. That binding can be retrieved from an 32 * injector using {@link com.google.inject.Injector#getBinding(Key) Injector.getBinding(key)}. 33 */ getLinkedKey()34 Key<? extends T> getLinkedKey(); 35 } 36