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