/*
* 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.Binding;
import com.google.inject.Key;
import com.google.inject.Provider;
/**
* A binding to a {@link Provider} that delegates to the binding for the provided type. This binding
* is used whenever a {@code Provider<T>} is injected (as opposed to injecting {@code T} directly).
*
* @author jessewilson@google.com (Jesse Wilson)
* @since 2.0
*/
public interface ProviderBinding<T extends Provider<?>> extends Binding<T> {
/**
* Returns the key whose binding is used to {@link Provider#get provide instances}. That binding
* can be retrieved from an injector using {@link com.google.inject.Injector#getBinding(Key)
* Injector.getBinding(providedKey)}
*/
Key<?> getProvidedKey();
}