| /** |
| * Copyright (C) 2008 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.spi; |
| |
| import com.google.inject.Scope; |
| import java.lang.annotation.Annotation; |
| |
| /** |
| * Visits each of the strategies used to scope an injection. |
| * |
| * @param <V> any type to be returned by the visit method. Use {@link Void} with |
| * {@code return null} if no return type is needed. |
| * @since 2.0 |
| */ |
| public interface BindingScopingVisitor<V> { |
| |
| /** |
| * Visit an eager singleton or single instance. This scope strategy is found on both module and |
| * injector bindings. |
| */ |
| V visitEagerSingleton(); |
| |
| /** |
| * Visit a scope instance. This scope strategy is found on both module and injector bindings. |
| */ |
| V visitScope(Scope scope); |
| |
| /** |
| * Visit a scope annotation. This scope strategy is found only on module bindings. The instance |
| * that implements this scope is registered by {@link com.google.inject.Binder#bindScope(Class, |
| * Scope) Binder.bindScope()}. |
| */ |
| V visitScopeAnnotation(Class<? extends Annotation> scopeAnnotation); |
| |
| /** |
| * Visit an unspecified or unscoped strategy. On a module, this strategy indicates that the |
| * injector should use scoping annotations to find a scope. On an injector, it indicates that |
| * no scope is applied to the binding. An unscoped binding will behave like a scoped one when it |
| * is linked to a scoped binding. |
| */ |
| V visitNoScoping(); |
| } |