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 17package com.google.inject.internal; 18 19import com.google.inject.MembersInjector; 20import com.google.inject.Provider; 21import com.google.inject.spi.MembersInjectorLookup; 22import com.google.inject.spi.ProviderLookup; 23 24/** 25 * Handles {@code Binder.getProvider} and {@code Binder.getMembersInjector(TypeLiteral)} commands. 26 * 27 * @author crazybob@google.com (Bob Lee) 28 * @author jessewilson@google.com (Jesse Wilson) 29 */ 30final class LookupProcessor extends AbstractProcessor { 31 32 LookupProcessor(Errors errors) { 33 super(errors); 34 } 35 36 @Override public <T> Boolean visit(MembersInjectorLookup<T> lookup) { 37 try { 38 MembersInjector<T> membersInjector 39 = injector.membersInjectorStore.get(lookup.getType(), errors); 40 lookup.initializeDelegate(membersInjector); 41 } catch (ErrorsException e) { 42 errors.merge(e.getErrors()); // TODO: source 43 } 44 45 return true; 46 } 47 48 @Override public <T> Boolean visit(ProviderLookup<T> lookup) { 49 // ensure the provider can be created 50 try { 51 Provider<T> provider = injector.getProviderOrThrow(lookup.getDependency(), errors); 52 lookup.initializeDelegate(provider); 53 } catch (ErrorsException e) { 54 errors.merge(e.getErrors()); // TODO: source 55 } 56 57 return true; 58 } 59} 60