| /* |
| * Copyright 2019 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.paging |
| |
| import androidx.annotation.RestrictTo |
| import androidx.paging.futures.DirectDispatcher |
| import kotlinx.coroutines.CoroutineScope |
| |
| /** |
| * InitialPagedList is an empty placeholder that's sent at the front of a stream of PagedLists. |
| * |
| * It's used solely for listening to [PagedList.LoadType.REFRESH] loading events, and retrying |
| * any errors that occur during initial load. |
| * |
| * @hide |
| */ |
| @RestrictTo(RestrictTo.Scope.LIBRARY) |
| class InitialPagedList<K : Any, V : Any>( |
| pagedSource: PagedSource<K, V>, |
| coroutineScope: CoroutineScope, |
| config: Config, |
| initialKey: K? |
| ) : ContiguousPagedList<K, V>( |
| pagedSource, |
| coroutineScope, |
| DirectDispatcher, |
| DirectDispatcher, |
| null, |
| config, |
| PagedSource.LoadResult.empty(), |
| 0 // no previous load, so pass 0 |
| ) { |
| override val lastKey = initialKey |
| } |
