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A library jar that provides APIs for Applications written for the Google Android Platform.
/*
* 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;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* 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 {@code @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
* {@link Database}.
*
* An abstract {@code @Dao} class can optionally have a constructor that takes a {@link Database}
* as its only parameter.
*
* It is recommended to have multiple {@code Dao} classes in your codebase depending on the tables
* they touch.
*
* @see Query
* @see Delete
* @see Insert
*/
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.CLASS)
public @interface Dao {
}