SystemIdInfoDao.kt
/*
* Copyright 2018 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.work.impl.model
import androidx.room.Dao
import androidx.room.Insert
import androidx.room.OnConflictStrategy
import androidx.room.Query
/**
* A Data Access Object for [SystemIdInfo].
*/
@Dao
interface SystemIdInfoDao {
/**
* Inserts a [SystemIdInfo] into the database.
*
* @param systemIdInfo The [SystemIdInfo] to be inserted into the database.
*/
@Insert(onConflict = OnConflictStrategy.REPLACE)
fun insertSystemIdInfo(systemIdInfo: SystemIdInfo)
/**
* @param workSpecId The [WorkSpec] identifier.
* @return The instance of [SystemIdInfo] if exists.
*/
@Query("SELECT * FROM SystemIdInfo WHERE work_spec_id=:workSpecId AND generation=:generation")
fun getSystemIdInfo(workSpecId: String, generation: Int): SystemIdInfo?
fun getSystemIdInfo(id: WorkGenerationalId) = getSystemIdInfo(id.workSpecId, id.generation)
/**
* Removes [SystemIdInfo] corresponding to the [WorkSpec] identifier.
*
* @param workSpecId The [WorkSpec] identifier.
*/
@Query("DELETE FROM SystemIdInfo where work_spec_id=:workSpecId AND generation=:generation")
fun removeSystemIdInfo(workSpecId: String, generation: Int)
/**
* Removes [SystemIdInfo] corresponding to the [WorkSpec] identifier.
*
* @param workSpecId The [WorkSpec] identifier.
*/
@Query("DELETE FROM SystemIdInfo where work_spec_id=:workSpecId")
fun removeSystemIdInfo(workSpecId: String)
fun removeSystemIdInfo(id: WorkGenerationalId) =
removeSystemIdInfo(id.workSpecId, id.generation)
/**
* @return The [List] of [WorkSpec] ids.
*/
@Query("SELECT DISTINCT work_spec_id FROM SystemIdInfo")
fun getWorkSpecIds(): List<String>
}