Dao.kt
/*
* Copyright (C) 2016 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 androidx.room
/**
* Marks the class as a Data Access Object.
*
* Data Access Objects are the main classes where you define your database interactions. They can
* include a variety of query methods.
*
* The class marked with `@Dao` should either be an interface or an abstract class. At compile
* time, Room will generate an implementation of this class when it is referenced by a
* [Database].
*
* An abstract `@Dao` class can optionally have a constructor that takes a [Database]
* as its only parameter.
*
* It is recommended to have multiple `Dao` classes in your codebase depending on the tables
* they touch.
*
* @see [Query]
* @see [Delete]
* @see [Insert]
*/
@Target(AnnotationTarget.CLASS)
@Retention(AnnotationRetention.BINARY)
public annotation class Dao