| /** |
| * 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.internal; |
| |
| import com.google.inject.Binding; |
| import com.google.inject.spi.Element; |
| import com.google.inject.spi.ElementVisitor; |
| import com.google.inject.spi.InjectionRequest; |
| import com.google.inject.spi.MembersInjectorLookup; |
| import com.google.inject.spi.Message; |
| import com.google.inject.spi.PrivateElements; |
| import com.google.inject.spi.ProviderLookup; |
| import com.google.inject.spi.ScopeBinding; |
| import com.google.inject.spi.StaticInjectionRequest; |
| import com.google.inject.spi.TypeConverterBinding; |
| import com.google.inject.spi.TypeListenerBinding; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * Abstract base class for creating an injector from module elements. |
| * |
| * <p>Extending classes must return {@code true} from any overridden |
| * {@code visit*()} methods, in order for the element processor to remove the |
| * handled element. |
| * |
| * @author jessewilson@google.com (Jesse Wilson) |
| */ |
| abstract class AbstractProcessor implements ElementVisitor<Boolean> { |
| |
| protected Errors errors; |
| protected InjectorImpl injector; |
| |
| protected AbstractProcessor(Errors errors) { |
| this.errors = errors; |
| } |
| |
| public void process(Iterable<InjectorShell> isolatedInjectorBuilders) { |
| for (InjectorShell injectorShell : isolatedInjectorBuilders) { |
| process(injectorShell.getInjector(), injectorShell.getElements()); |
| } |
| } |
| |
| public void process(InjectorImpl injector, List<Element> elements) { |
| Errors errorsAnyElement = this.errors; |
| this.injector = injector; |
| try { |
| for (Iterator<Element> i = elements.iterator(); i.hasNext(); ) { |
| Element element = i.next(); |
| this.errors = errorsAnyElement.withSource(element.getSource()); |
| Boolean allDone = element.acceptVisitor(this); |
| if (allDone) { |
| i.remove(); |
| } |
| } |
| } finally { |
| this.errors = errorsAnyElement; |
| this.injector = null; |
| } |
| } |
| |
| public Boolean visit(Message message) { |
| return false; |
| } |
| |
| /*if[AOP]*/ |
| public Boolean visit( |
| com.google.inject.spi.InterceptorBinding interceptorBinding) { |
| return false; |
| } |
| /*end[AOP]*/ |
| |
| public Boolean visit(ScopeBinding scopeBinding) { |
| return false; |
| } |
| |
| public Boolean visit(InjectionRequest<?> injectionRequest) { |
| return false; |
| } |
| |
| public Boolean visit(StaticInjectionRequest staticInjectionRequest) { |
| return false; |
| } |
| |
| public Boolean visit(TypeConverterBinding typeConverterBinding) { |
| return false; |
| } |
| |
| public <T> Boolean visit(Binding<T> binding) { |
| return false; |
| } |
| |
| public <T> Boolean visit(ProviderLookup<T> providerLookup) { |
| return false; |
| } |
| |
| public Boolean visit(PrivateElements privateElements) { |
| return false; |
| } |
| |
| public <T> Boolean visit(MembersInjectorLookup<T> lookup) { |
| return false; |
| } |
| |
| public Boolean visit(TypeListenerBinding binding) { |
| return false; |
| } |
| } |