1 /*
2  * Copyright (C) 2020 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.server.biometrics.sensors;
18 
19 import android.annotation.Nullable;
20 import android.hardware.biometrics.BiometricAuthenticator;
21 
22 /**
23  * Interface that {@link BaseClientMonitor} subclasses eligible/interested in removal callbacks
24  * should implement.
25  */
26 public interface RemovalConsumer {
27     /**
28      * @param identifier Fingerprint, face, etc that was removed.
29      * @param remaining number of templates that still need to be removed before the operation in
30      *                  the HAL is complete (e.g. when removing all templates).
31      */
onRemoved(@ullable BiometricAuthenticator.Identifier identifier, int remaining)32     void onRemoved(@Nullable BiometricAuthenticator.Identifier identifier, int remaining);
33 }
34