47 lines
1.4 KiB
Java
47 lines
1.4 KiB
Java
/*
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* Copyright (C) 2019 The Dagger Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dagger.hilt.android.internal.managers;
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import dagger.hilt.internal.GeneratedComponentManager;
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/**
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* Do not use except in Hilt generated code!
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*
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* <p>A manager for the creation of components that live in the Application.
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*/
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public final class ApplicationComponentManager implements GeneratedComponentManager<Object> {
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private volatile Object component;
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private final Object componentLock = new Object();
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private final ComponentSupplier componentCreator;
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public ApplicationComponentManager(ComponentSupplier componentCreator) {
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this.componentCreator = componentCreator;
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}
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@Override
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public Object generatedComponent() {
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if (component == null) {
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synchronized (componentLock) {
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if (component == null) {
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component = componentCreator.get();
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}
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}
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}
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return component;
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}
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}
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