| /** |
| * 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.internal; |
| |
| import com.google.inject.Binder; |
| import com.google.inject.Key; |
| import com.google.inject.binder.AnnotatedElementBuilder; |
| import com.google.inject.internal.util.Preconditions; |
| import java.lang.annotation.Annotation; |
| |
| /** |
| * For private binder's expose() method. |
| */ |
| public class ExposureBuilder<T> implements AnnotatedElementBuilder { |
| private final Binder binder; |
| private final Object source; |
| private Key<T> key; |
| |
| public ExposureBuilder(Binder binder, Object source, Key<T> key) { |
| this.binder = binder; |
| this.source = source; |
| this.key = key; |
| } |
| |
| protected void checkNotAnnotated() { |
| if (key.getAnnotationType() != null) { |
| binder.addError(AbstractBindingBuilder.ANNOTATION_ALREADY_SPECIFIED); |
| } |
| } |
| |
| public void annotatedWith(Class<? extends Annotation> annotationType) { |
| Preconditions.checkNotNull(annotationType, "annotationType"); |
| checkNotAnnotated(); |
| key = Key.get(key.getTypeLiteral(), annotationType); |
| } |
| |
| public void annotatedWith(Annotation annotation) { |
| Preconditions.checkNotNull(annotation, "annotation"); |
| checkNotAnnotated(); |
| key = Key.get(key.getTypeLiteral(), annotation); |
| } |
| |
| public Key<?> getKey() { |
| return key; |
| } |
| |
| public Object getSource() { |
| return source; |
| } |
| |
| @Override public String toString() { |
| return "AnnotatedElementBuilder"; |
| } |
| } |