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/*
* Copyright (C) 2021 The Android Open Source Project
*
* 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.modules.annotation;
import static java.lang.annotation.ElementType.CONSTRUCTOR;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.CLASS;
import java.lang.annotation.Repeatable;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
/**
* Indicates than an API is only supported on platform versions of at least the given value and
* later.
*
* Currently, this annotations is purely informational. The exact meaning of this annotation depends
* on it's context:
* <ul>
* <li>On a public SDK method, it means that the member should only be included in the SDK of
* the given version or later</li>
* <li>On a module API, it will mean that it should only be called when running on a device with
* the given SDK or later</li>
* </ul>
*
* In future, the annotation will acquire further semantics:
* <ul>
* <li>Classes annotated with this will only be classloaded on devices running the given SDK
* version or later.</li>
* <li>It will be used to ensure API safety at build time in the context of a codebase with
* different parts having different min SDK versions.</li>
* </ul>
*
* This annotation should only be used on code that exports an API (either public SDK or
* {@code @SystemApi}. For code that just calls APIs that only exist on newer platform versions
* use {@code androidx.annotation.RequiresApi} instead.
*/
@Retention(CLASS)
@Target({CONSTRUCTOR, METHOD, FIELD, TYPE})
public @interface MinSdk {
int value();
}
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