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/*
* 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.android.dialer.calllog.datasources;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.support.annotation.MainThread;
import android.support.annotation.WorkerThread;
import com.android.dialer.calllog.database.CallLogMutations;
/** A source of data for one or more columns in the annotated call log. */
public interface CallLogDataSource {
/**
* A lightweight check which runs frequently to detect if the annotated call log is out of date
* with respect to this data source.
*
* <p>This is typically used to detect external changes to the underlying data source which have
* been made in such a way that the dialer application was not notified.
*
* <p>Most implementations of this method will rely on some sort of last modified timestamp. If it
* is impossible for a data source to be modified without the dialer application being notified,
* this method may immediately return false.
*/
@WorkerThread
boolean isDirty(Context appContext);
/**
* Computes the set of mutations necessary to update the annotated call log with respect to this
* data source.
*
* @param mutations the set of mutations which this method should contribute to. Note that it may
* contain inserts from the system call log, and these inserts should be modified by each data
* source.
*/
@WorkerThread
void fill(
Context appContext,
SQLiteDatabase readableDatabase,
long lastRebuildTimeMillis,
CallLogMutations mutations);
@MainThread
void registerContentObservers(
Context appContext, ContentObserverCallbacks contentObserverCallbacks);
/**
* Methods which may optionally be called as a result of a data source's content observer firing.
*/
interface ContentObserverCallbacks {
@MainThread
void markDirtyAndNotify(Context appContext);
}
}
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