| /** |
| * 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.commands; |
| |
| /** |
| * No-op visitor for subclassing. All interface methods simply delegate to |
| * {@link #visitCommand(Command)}, returning its result. |
| * |
| * @author sberlin@gmail.com (Sam Berlin) |
| */ |
| public class DefaultCommandVisitor<V> implements Command.Visitor<V> { |
| |
| protected DefaultCommandVisitor() {} |
| |
| /** |
| * Visit {@code command} and return a result. |
| */ |
| public V visitCommand(Command command) { |
| return null; |
| } |
| |
| public V visitAddMessage(AddMessageCommand command) { |
| return visitCommand(command); |
| } |
| |
| public <T> V visitBind(BindCommand<T> command) { |
| return visitCommand(command); |
| } |
| |
| public V visitBindConstant(BindConstantCommand command) { |
| return visitCommand(command); |
| } |
| |
| public V visitBindInterceptor(BindInterceptorCommand command) { |
| return visitCommand(command); |
| } |
| |
| public V visitBindScope(BindScopeCommand command) { |
| return visitCommand(command); |
| } |
| |
| public V visitConvertToTypes(ConvertToTypesCommand command) { |
| return visitCommand(command); |
| } |
| |
| public <T> V visitGetProvider(GetProviderCommand<T> command) { |
| return visitCommand(command); |
| } |
| |
| public V visitRequestInjection(RequestInjectionCommand command) { |
| return visitCommand(command); |
| } |
| |
| public V visitRequestStaticInjection( |
| RequestStaticInjectionCommand command) { |
| return visitCommand(command); |
| } |
| } |