| /* |
| * Copyright (C) 2006 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.example; |
| |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import javax.naming.Context; |
| import javax.naming.NamingException; |
| |
| class JndiProvider<T> implements Provider<T> { |
| |
| @Inject Context context; |
| final String name; |
| final Class<T> type; |
| |
| JndiProvider(Class<T> type, String name) { |
| this.name = name; |
| this.type = type; |
| } |
| |
| @Override |
| public T get() { |
| try { |
| return type.cast(context.lookup(name)); |
| } catch (NamingException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /** Creates a JNDI provider for the given type and name. */ |
| static <T> Provider<T> fromJndi(Class<T> type, String name) { |
| return new JndiProvider<T>(type, name); |
| } |
| } |