74 lines
2.0 KiB
Java
74 lines
2.0 KiB
Java
/*
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* Copyright (C) 2020 The Android Open Source Project
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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 com.android.role.persistence;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.SystemApi;
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import android.annotation.SystemApi.Client;
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import android.os.UserHandle;
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/**
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* Persistence for roles.
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*
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* TODO(b/147914847): Remove @hide when it becomes the default.
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* @hide
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*/
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@SystemApi(client = Client.SYSTEM_SERVER)
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public interface RolesPersistence {
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/**
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* Read the roles from persistence.
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*
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* This will perform I/O operations synchronously.
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*
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* @param user the user to read for
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* @return the roles read
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*/
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@Nullable
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RolesState readForUser(@NonNull UserHandle user);
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/**
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* Write the roles to persistence.
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*
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* This will perform I/O operations synchronously.
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*
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* @param roles the roles to write
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* @param user the user to write for
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*/
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void writeForUser(@NonNull RolesState roles, @NonNull UserHandle user);
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/**
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* Delete the roles from persistence.
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*
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* This will perform I/O operations synchronously.
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*
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* @param user the user to delete for
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*/
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void deleteForUser(@NonNull UserHandle user);
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/**
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* Create a new instance of {@link RolesPersistence} implementation.
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*
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* @return the new instance.
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*/
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@NonNull
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static RolesPersistence createInstance() {
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return new RolesPersistenceImpl();
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}
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}
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