/*
* Copyright 2013 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.gwt.inject.client.multibindings;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.util.Map;
import java.util.Set;
/**
* A provider for the multimap of providers for a key&value binding pair.
*
* @param <K> type of key for map binding
* @param <V> type of value for map binding
*/
class ProviderForProviderMultiMap<K, V> implements Provider<Map<K, Set<Provider<V>>>> {
@Inject @Internal
private RuntimeBindingsRegistry<MapEntry<K, V>> registry;
@Override
public Map<K, Set<Provider<V>>> get() {
SimpleMultimap<K, Provider<V>> map = new SimpleMultimap<K, Provider<V>>();
for (MapEntry<K, V> entry : registry.getBindings()) {
map.putItem(entry.getKey(), entry.getValueProvider());
}
return map.toUnmodifiable();
}
}