package androidx.paging {

  public abstract class DataSource<Key, Value> {
    method public void addInvalidatedCallback(androidx.paging.DataSource.InvalidatedCallback);
    method public void invalidate();
    method public boolean isInvalid();
    method public abstract <ToValue> androidx.paging.DataSource<Key, ToValue> map(androidx.arch.core.util.Function<Value, ToValue>);
    method public abstract <ToValue> androidx.paging.DataSource<Key, ToValue> mapByPage(androidx.arch.core.util.Function<java.util.List<Value>, java.util.List<ToValue>>);
    method public void removeInvalidatedCallback(androidx.paging.DataSource.InvalidatedCallback);
  }

  public static abstract class DataSource.Factory<Key, Value> {
    ctor public DataSource.Factory();
    method public abstract androidx.paging.DataSource<Key, Value> create();
    method public <ToValue> androidx.paging.DataSource.Factory<Key, ToValue> map(androidx.arch.core.util.Function<Value, ToValue>);
    method public <ToValue> androidx.paging.DataSource.Factory<Key, ToValue> mapByPage(androidx.arch.core.util.Function<java.util.List<Value>, java.util.List<ToValue>>);
  }

  public static abstract interface DataSource.InvalidatedCallback {
    method public abstract void onInvalidated();
  }

  public abstract class ItemKeyedDataSource<Key, Value> extends androidx.paging.DataSource {
    ctor public ItemKeyedDataSource();
    method public abstract Key getKey(Value);
    method public abstract void loadAfter(androidx.paging.ItemKeyedDataSource.LoadParams<Key>, androidx.paging.ItemKeyedDataSource.LoadCallback<Value>);
    method public abstract void loadBefore(androidx.paging.ItemKeyedDataSource.LoadParams<Key>, androidx.paging.ItemKeyedDataSource.LoadCallback<Value>);
    method public abstract void loadInitial(androidx.paging.ItemKeyedDataSource.LoadInitialParams<Key>, androidx.paging.ItemKeyedDataSource.LoadInitialCallback<Value>);
    method public final <ToValue> androidx.paging.ItemKeyedDataSource<Key, ToValue> map(androidx.arch.core.util.Function<Value, ToValue>);
    method public final <ToValue> androidx.paging.ItemKeyedDataSource<Key, ToValue> mapByPage(androidx.arch.core.util.Function<java.util.List<Value>, java.util.List<ToValue>>);
  }

  public static abstract class ItemKeyedDataSource.LoadCallback<Value> {
    ctor public ItemKeyedDataSource.LoadCallback();
    method public abstract void onResult(java.util.List<Value>);
  }

  public static abstract class ItemKeyedDataSource.LoadInitialCallback<Value> extends androidx.paging.ItemKeyedDataSource.LoadCallback {
    ctor public ItemKeyedDataSource.LoadInitialCallback();
    method public abstract void onResult(java.util.List<Value>, int, int);
  }

  public static class ItemKeyedDataSource.LoadInitialParams<Key> {
    ctor public ItemKeyedDataSource.LoadInitialParams(Key, int, boolean);
    field public final boolean placeholdersEnabled;
    field public final Key requestedInitialKey;
    field public final int requestedLoadSize;
  }

  public static class ItemKeyedDataSource.LoadParams<Key> {
    ctor public ItemKeyedDataSource.LoadParams(Key, int);
    field public final Key key;
    field public final int requestedLoadSize;
  }

  public abstract class PageKeyedDataSource<Key, Value> extends androidx.paging.DataSource {
    ctor public PageKeyedDataSource();
    method public abstract void loadAfter(androidx.paging.PageKeyedDataSource.LoadParams<Key>, androidx.paging.PageKeyedDataSource.LoadCallback<Key, Value>);
    method public abstract void loadBefore(androidx.paging.PageKeyedDataSource.LoadParams<Key>, androidx.paging.PageKeyedDataSource.LoadCallback<Key, Value>);
    method public abstract void loadInitial(androidx.paging.PageKeyedDataSource.LoadInitialParams<Key>, androidx.paging.PageKeyedDataSource.LoadInitialCallback<Key, Value>);
    method public final <ToValue> androidx.paging.PageKeyedDataSource<Key, ToValue> map(androidx.arch.core.util.Function<Value, ToValue>);
    method public final <ToValue> androidx.paging.PageKeyedDataSource<Key, ToValue> mapByPage(androidx.arch.core.util.Function<java.util.List<Value>, java.util.List<ToValue>>);
  }

  public static abstract class PageKeyedDataSource.LoadCallback<Key, Value> {
    ctor public PageKeyedDataSource.LoadCallback();
    method public abstract void onResult(java.util.List<Value>, Key);
  }

  public static abstract class PageKeyedDataSource.LoadInitialCallback<Key, Value> {
    ctor public PageKeyedDataSource.LoadInitialCallback();
    method public abstract void onResult(java.util.List<Value>, int, int, Key, Key);
    method public abstract void onResult(java.util.List<Value>, Key, Key);
  }

  public static class PageKeyedDataSource.LoadInitialParams<Key> {
    ctor public PageKeyedDataSource.LoadInitialParams(int, boolean);
    field public final boolean placeholdersEnabled;
    field public final int requestedLoadSize;
  }

  public static class PageKeyedDataSource.LoadParams<Key> {
    ctor public PageKeyedDataSource.LoadParams(Key, int);
    field public final Key key;
    field public final int requestedLoadSize;
  }

  public abstract class PagedList<T> extends java.util.AbstractList {
    method public void addWeakCallback(java.util.List<T>, androidx.paging.PagedList.Callback);
    method public void detach();
    method public T get(int);
    method public androidx.paging.PagedList.Config getConfig();
    method public abstract androidx.paging.DataSource<?, T> getDataSource();
    method public abstract java.lang.Object getLastKey();
    method public int getPositionOffset();
    method public boolean isDetached();
    method public boolean isImmutable();
    method public void loadAround(int);
    method public void removeWeakCallback(androidx.paging.PagedList.Callback);
    method public int size();
    method public java.util.List<T> snapshot();
  }

  public static abstract class PagedList.BoundaryCallback<T> {
    ctor public PagedList.BoundaryCallback();
    method public void onItemAtEndLoaded(T);
    method public void onItemAtFrontLoaded(T);
    method public void onZeroItemsLoaded();
  }

  public static final class PagedList.Builder<Key, Value> {
    ctor public PagedList.Builder(androidx.paging.DataSource<Key, Value>, androidx.paging.PagedList.Config);
    ctor public PagedList.Builder(androidx.paging.DataSource<Key, Value>, int);
    method public androidx.paging.PagedList<Value> build();
    method public androidx.paging.PagedList.Builder<Key, Value> setBoundaryCallback(androidx.paging.PagedList.BoundaryCallback);
    method public androidx.paging.PagedList.Builder<Key, Value> setFetchExecutor(java.util.concurrent.Executor);
    method public androidx.paging.PagedList.Builder<Key, Value> setInitialKey(Key);
    method public androidx.paging.PagedList.Builder<Key, Value> setNotifyExecutor(java.util.concurrent.Executor);
  }

  public static abstract class PagedList.Callback {
    ctor public PagedList.Callback();
    method public abstract void onChanged(int, int);
    method public abstract void onInserted(int, int);
    method public abstract void onRemoved(int, int);
  }

  public static class PagedList.Config {
    field public final boolean enablePlaceholders;
    field public final int initialLoadSizeHint;
    field public final int pageSize;
    field public final int prefetchDistance;
  }

  public static final class PagedList.Config.Builder {
    ctor public PagedList.Config.Builder();
    method public androidx.paging.PagedList.Config build();
    method public androidx.paging.PagedList.Config.Builder setEnablePlaceholders(boolean);
    method public androidx.paging.PagedList.Config.Builder setInitialLoadSizeHint(int);
    method public androidx.paging.PagedList.Config.Builder setPageSize(int);
    method public androidx.paging.PagedList.Config.Builder setPrefetchDistance(int);
  }

  public abstract class PositionalDataSource<T> extends androidx.paging.DataSource {
    ctor public PositionalDataSource();
    method public static int computeInitialLoadPosition(androidx.paging.PositionalDataSource.LoadInitialParams, int);
    method public static int computeInitialLoadSize(androidx.paging.PositionalDataSource.LoadInitialParams, int, int);
    method public abstract void loadInitial(androidx.paging.PositionalDataSource.LoadInitialParams, androidx.paging.PositionalDataSource.LoadInitialCallback<T>);
    method public abstract void loadRange(androidx.paging.PositionalDataSource.LoadRangeParams, androidx.paging.PositionalDataSource.LoadRangeCallback<T>);
    method public final <V> androidx.paging.PositionalDataSource<V> map(androidx.arch.core.util.Function<T, V>);
    method public final <V> androidx.paging.PositionalDataSource<V> mapByPage(androidx.arch.core.util.Function<java.util.List<T>, java.util.List<V>>);
  }

  public static abstract class PositionalDataSource.LoadInitialCallback<T> {
    ctor public PositionalDataSource.LoadInitialCallback();
    method public abstract void onResult(java.util.List<T>, int, int);
    method public abstract void onResult(java.util.List<T>, int);
  }

  public static class PositionalDataSource.LoadInitialParams {
    ctor public PositionalDataSource.LoadInitialParams(int, int, int, boolean);
    field public final int pageSize;
    field public final boolean placeholdersEnabled;
    field public final int requestedLoadSize;
    field public final int requestedStartPosition;
  }

  public static abstract class PositionalDataSource.LoadRangeCallback<T> {
    ctor public PositionalDataSource.LoadRangeCallback();
    method public abstract void onResult(java.util.List<T>);
  }

  public static class PositionalDataSource.LoadRangeParams {
    ctor public PositionalDataSource.LoadRangeParams(int, int);
    field public final int loadSize;
    field public final int startPosition;
  }

}