/*
 * 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 static com.google.common.collect.Iterables.concat;

import com.google.common.collect.ImmutableList;
import com.google.inject.spi.InjectionPoint;

Constructor injectors by type.
Author:jessewilson@google.com (Jesse Wilson)
/** * Constructor injectors by type. * * @author jessewilson@google.com (Jesse Wilson) */
final class ConstructorInjectorStore { private final InjectorImpl injector; private final FailableCache<InjectionPoint, ConstructorInjector<?>> cache = new FailableCache<InjectionPoint, ConstructorInjector<?>>() { @Override protected ConstructorInjector<?> create(InjectionPoint constructorInjector, Errors errors) throws ErrorsException { return createConstructor(constructorInjector, errors); } }; ConstructorInjectorStore(InjectorImpl injector) { this.injector = injector; }
Returns a new complete constructor injector with injection listeners registered.
/** Returns a new complete constructor injector with injection listeners registered. */
public ConstructorInjector<?> get(InjectionPoint constructorInjector, Errors errors) throws ErrorsException { return cache.get(constructorInjector, errors); }
Purges an injection point from the cache. Use this only if the cache is not actually valid and needs to be purged. (See issue 319 and ImplicitBindingTest#testCircularJitBindingsLeaveNoResidue and #testInstancesRequestingProvidersForThemselvesWithChildInjectors for examples of when this is necessary.)

Returns true if the injector for that point was stored in the cache, false otherwise.

/** * Purges an injection point from the cache. Use this only if the cache is not actually valid and * needs to be purged. (See issue 319 and * ImplicitBindingTest#testCircularJitBindingsLeaveNoResidue and * #testInstancesRequestingProvidersForThemselvesWithChildInjectors for examples of when this is * necessary.) * * <p>Returns true if the injector for that point was stored in the cache, false otherwise. */
boolean remove(InjectionPoint ip) { return cache.remove(ip); } private <T> ConstructorInjector<T> createConstructor(InjectionPoint injectionPoint, Errors errors) throws ErrorsException { int numErrorsBefore = errors.size(); SingleParameterInjector<?>[] constructorParameterInjectors = injector.getParametersInjectors(injectionPoint.getDependencies(), errors); @SuppressWarnings("unchecked") // the injector type agrees with the injection point type MembersInjectorImpl<T> membersInjector = (MembersInjectorImpl<T>) injector.membersInjectorStore.get(injectionPoint.getDeclaringType(), errors); /*if[AOP]*/ ImmutableList<MethodAspect> injectorAspects = injector.state.getMethodAspects(); ImmutableList<MethodAspect> methodAspects = membersInjector.getAddedAspects().isEmpty() ? injectorAspects : ImmutableList.copyOf(concat(injectorAspects, membersInjector.getAddedAspects())); ConstructionProxyFactory<T> factory = new ProxyFactory<>(injectionPoint, methodAspects); /*end[AOP]*/ /*if[NO_AOP] ConstructionProxyFactory<T> factory = new DefaultConstructionProxyFactory<>(injectionPoint); end[NO_AOP]*/ errors.throwIfNewErrors(numErrorsBefore); return new ConstructorInjector<T>( membersInjector.getInjectionPoints(), factory.create(), constructorParameterInjectors, membersInjector); } }