com.google.inject.ConstructorInjectorStore Maven / Gradle / Ivy
/**
* 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;
import com.google.inject.internal.Errors;
import com.google.inject.internal.ErrorsException;
import com.google.inject.internal.FailableCache;
import com.google.inject.internal.ImmutableList;
import static com.google.inject.internal.Iterables.concat;
import com.google.inject.spi.InjectionPoint;
/**
* Constructor injectors by type.
*
* @author [email protected] (Jesse Wilson)
*/
class ConstructorInjectorStore {
private final InjectorImpl injector;
private final FailableCache, ConstructorInjector> cache
= new FailableCache, ConstructorInjector> () {
@SuppressWarnings("unchecked")
protected ConstructorInjector create(TypeLiteral type, Errors errors)
throws ErrorsException {
return createConstructor(type, errors);
}
};
ConstructorInjectorStore(InjectorImpl injector) {
this.injector = injector;
}
/**
* Returns a new complete constructor injector with injection listeners registered.
*/
@SuppressWarnings("unchecked") // the ConstructorInjector type always agrees with the passed type
public ConstructorInjector get(TypeLiteral key, Errors errors) throws ErrorsException {
return (ConstructorInjector) cache.get(key, errors);
}
private ConstructorInjector createConstructor(TypeLiteral type, Errors errors)
throws ErrorsException {
int numErrorsBefore = errors.size();
InjectionPoint injectionPoint;
try {
injectionPoint = InjectionPoint.forConstructorOf(type);
} catch (ConfigurationException e) {
errors.merge(e.getErrorMessages());
throw errors.toException();
}
SingleParameterInjector[] constructorParameterInjectors
= injector.getParametersInjectors(injectionPoint.getDependencies(), errors);
MembersInjectorImpl membersInjector = injector.membersInjectorStore.get(type, errors);
ConstructionProxyFactory factory = new DefaultConstructionProxyFactory(injectionPoint);
errors.throwIfNewErrors(numErrorsBefore);
return new ConstructorInjector(membersInjector.getInjectionPoints(), factory.create(),
constructorParameterInjectors, membersInjector);
}
}