1 /*
2  * Copyright (C) 2022 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.systemui.log.table
18 
19 /**
20  * A class that logs a row to [TableLogBuffer].
21  *
22  * Objects that implement [Diffable] will receive an instance of this class, and can log any changes
23  * to individual fields using the [logChange] methods. All logged changes will be associated with
24  * the same timestamp.
25  */
26 interface TableRowLogger {
27     /** Logs a change to a string value. */
28     fun logChange(columnName: String, value: String?)
29 
30     /** Logs a change to a boolean value. */
31     fun logChange(columnName: String, value: Boolean)
32 
33     /** Logs a change to an int value. */
34     fun logChange(columnName: String, value: Int)
35 }
36