com.google.inject.DeferredLookups 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.Lists;
import com.google.inject.spi.Element;
import com.google.inject.spi.MembersInjectorLookup;
import com.google.inject.spi.ProviderLookup;
import java.util.List;
/**
* Returns providers and members injectors that haven't yet been initialized. As a part of injector
* creation it's necessary to {@link #initialize initialize} these lookups.
*
* @author [email protected] (Jesse Wilson)
*/
class DeferredLookups implements Lookups {
private final InjectorImpl injector;
private final List lookups = Lists.newArrayList();
public DeferredLookups(InjectorImpl injector) {
this.injector = injector;
}
/**
* Initialize the specified lookups, either immediately or when the injector is created.
*/
public void initialize(Errors errors) {
injector.lookups = injector;
new LookupProcessor(errors).process(injector, lookups);
}
public Provider getProvider(Key key) {
ProviderLookup lookup = new ProviderLookup(key, key);
lookups.add(lookup);
return lookup.getProvider();
}
public MembersInjector getMembersInjector(TypeLiteral type) {
MembersInjectorLookup lookup = new MembersInjectorLookup(type, type);
lookups.add(lookup);
return lookup.getMembersInjector();
}
}