| /** |
| * Copyright (C) 2009 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.assistedinject; |
| |
| import com.google.inject.ConfigurationException; |
| import com.google.inject.Key; |
| import com.google.inject.TypeLiteral; |
| import com.google.inject.internal.util.ImmutableSet; |
| import com.google.inject.internal.util.Maps; |
| import com.google.inject.spi.Message; |
| import java.util.Collections; |
| import java.util.Map; |
| |
| /** |
| * Utility class for collecting factory bindings. Used for configuring {@link FactoryProvider2}. |
| * |
| * @author schmitt@google.com (Peter Schmitt) |
| */ |
| class BindingCollector { |
| |
| private final Map<Key<?>, TypeLiteral<?>> bindings = Maps.newHashMap(); |
| |
| public BindingCollector addBinding(Key<?> key, TypeLiteral<?> target) { |
| if (bindings.containsKey(key)) { |
| throw new ConfigurationException(ImmutableSet.of( |
| new Message("Only one implementation can be specified for " + key))); |
| } |
| |
| bindings.put(key, target); |
| |
| return this; |
| } |
| |
| public Map<Key<?>, TypeLiteral<?>> getBindings() { |
| return Collections.unmodifiableMap(bindings); |
| } |
| } |