foo/bar/UpdateDao.java

/*
 * Copyright (C) 2017 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 foo.bar;
import android.arch.persistence.room.*;
import java.util.List;

@Dao
abstract interface UpdateDao {
    @Update
    void updateUser(User user);
    @Update
    void updateUsers(User user1, List<User> others);
    @Update
    void updateArrayOfUsers(User[] users);

    @Update
    int updateUserAndReturnCount(User user);
    @Update
    int updateUserAndReturnCount(User user1, List<User> others);
    @Update
    int updateUserAndReturnCount(User[] users);

    @Update
    int multiPKey(MultiPKeyEntity entity);

    @Update
    void updateUserAndBook(User user, Book book);

    @Query("UPDATE User SET ageColumn = ageColumn + 1 WHERE uid = :uid")
    void ageUserByUid(String uid);

    @Query("UPDATE User SET ageColumn = ageColumn + 1")
    void ageUserAll();
}