| /* |
| * Copyright (C) 2015 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.google.inject.multibindings; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.google.inject.Binder; |
| import com.google.inject.Key; |
| import com.google.inject.Module; |
| import com.google.inject.spi.InjectionPoint; |
| import com.google.inject.spi.ModuleAnnotatedMethodScanner; |
| import com.google.inject.util.Modules; |
| import java.lang.annotation.Annotation; |
| import java.util.Set; |
| |
| /** |
| * Scans a module for annotations that signal multibindings, mapbindings, and optional bindings. |
| * |
| * @since 4.0 |
| * @deprecated This functionality is installed by default. All references to this can be safely |
| * removed. This class will be removed in Guice 4.4 |
| */ |
| @Deprecated |
| public class MultibindingsScanner { |
| private MultibindingsScanner() {} |
| |
| /** |
| * Returns a module that, when installed, will scan all modules for methods with the annotations |
| * {@literal @}{@link ProvidesIntoMap}, {@literal @}{@link ProvidesIntoSet}, and |
| * {@literal @}{@link ProvidesIntoOptional}. |
| * |
| * <p>This is a convenience method, equivalent to doing {@code |
| * binder().scanModulesForAnnotatedMethods(MultibindingsScanner.scanner())}. |
| * |
| * @deprecated This functionality is now installed by default. All references/installations can be |
| * eliminated. |
| */ |
| @Deprecated |
| public static Module asModule() { |
| return Modules.EMPTY_MODULE; |
| } |
| |
| /** |
| * @deprecated This method returns an empty scanner since the preexisting functionality is |
| * installed by default. |
| */ |
| @Deprecated |
| public static ModuleAnnotatedMethodScanner scanner() { |
| return new ModuleAnnotatedMethodScanner() { |
| @Override |
| public Set<? extends Class<? extends Annotation>> annotationClasses() { |
| return ImmutableSet.of(); |
| } |
| |
| @Override |
| public <T> Key<T> prepareMethod( |
| Binder binder, Annotation annotation, Key<T> key, InjectionPoint injectionPoint) { |
| throw new IllegalStateException("Unexpected annotation: " + annotation); |
| } |
| }; |
| } |
| } |