| /** |
| * 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.Binder; |
| import com.google.inject.Scope; |
| import static com.google.inject.internal.util.Preconditions.checkNotNull; |
| import java.lang.annotation.Annotation; |
| |
| /** |
| * Registration of a scope annotation with the scope that implements it. Instances are created |
| * explicitly in a module using {@link com.google.inject.Binder#bindScope(Class, Scope) bindScope()} |
| * statements: |
| * <pre> |
| * Scope recordScope = new RecordScope(); |
| * bindScope(RecordScoped.class, new RecordScope());</pre> |
| * |
| * @author jessewilson@google.com (Jesse Wilson) |
| * @since 2.0 |
| */ |
| public final class ScopeBinding implements Element { |
| private final Object source; |
| private final Class<? extends Annotation> annotationType; |
| private final Scope scope; |
| |
| ScopeBinding(Object source, Class<? extends Annotation> annotationType, Scope scope) { |
| this.source = checkNotNull(source, "source"); |
| this.annotationType = checkNotNull(annotationType, "annotationType"); |
| this.scope = checkNotNull(scope, "scope"); |
| } |
| |
| public Object getSource() { |
| return source; |
| } |
| |
| public Class<? extends Annotation> getAnnotationType() { |
| return annotationType; |
| } |
| |
| public Scope getScope() { |
| return scope; |
| } |
| |
| public <T> T acceptVisitor(ElementVisitor<T> visitor) { |
| return visitor.visit(this); |
| } |
| |
| public void applyTo(Binder binder) { |
| binder.withSource(getSource()).bindScope(annotationType, scope); |
| } |
| } |