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/* GENERATED SOURCE. DO NOT MODIFY. */
/*
* Copyright (C) 2022 The Libphonenumber Authors
*
* 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.android.i18n.phonenumbers.metadata.source;
/**
* Guard that ensures that metadata bootstrapping process (loading and parsing) is triggered only
* once per metadata file.
*
* @param <T> needs to extend {@link MetadataContainer}
* @hide This class is not part of the Android public SDK API
*/
public interface MetadataBootstrappingGuard<T extends MetadataContainer> {
/**
* If metadata from the provided file has not yet been read, invokes loading and parsing from the
* provided file and adds the result to guarded {@link MetadataContainer}.
*
* @param phoneMetadataFile to read from
* @return guarded {@link MetadataContainer}
*/
T getOrBootstrap(String phoneMetadataFile);
}
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