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UserDao.kt
/* * 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 com.example.android.observability.persistence import android.arch.persistence.room.Dao import android.arch.persistence.room.Insert import android.arch.persistence.room.OnConflictStrategy import android.arch.persistence.room.Query import io.reactivex.Flowable /** * Data Access Object for the users table. */ @Dao interface UserDao { /** * Get a user by id. * @return the user from the table with a specific id. */ @Query("SELECT * FROM Users WHERE userid = :id") fun getUserById(id: String): Flowable
/** * Insert a user in the database. If the user already exists, replace it. * @param user the user to be inserted. */ @Insert(onConflict = OnConflictStrategy.REPLACE) fun insertUser(user: User) /** * Delete all users. */ @Query("DELETE FROM Users") fun deleteAllUsers() }