1 /* 2 * Copyright 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.bluetooth.btservice.storage; 18 19 import androidx.room.Dao; 20 import androidx.room.Insert; 21 import androidx.room.OnConflictStrategy; 22 import androidx.room.Query; 23 24 import java.util.List; 25 26 @Dao 27 interface MetadataDao { 28 /** 29 * Load all items in the database 30 */ 31 @Query("SELECT * FROM metadata ORDER BY last_active_time DESC") load()32 List<Metadata> load(); 33 34 /** 35 * Create or update a Metadata in the database 36 */ 37 @Insert(onConflict = OnConflictStrategy.REPLACE) insert(Metadata... metadata)38 void insert(Metadata... metadata); 39 40 /** 41 * Delete a Metadata in the database 42 */ 43 @Query("DELETE FROM metadata WHERE address = :address") delete(String address)44 void delete(String address); 45 46 /** 47 * Delete all Metadatas in the database 48 */ 49 @Query("DELETE FROM metadata") deleteAll()50 void deleteAll(); 51 } 52