@Override
public void deliverResult(SimpleGraphObjectCursor<T> cursor) {
SimpleGraphObjectCursor<T> oldCursor = this.cursor;
this.cursor = cursor;
if (isStarted()) {
super.deliverResult(cursor);
if (oldCursor != null && oldCursor != cursor && !oldCursor.isClosed()) {
oldCursor.close();
}
}
}
@Override
protected void onLoadFinished(
GraphObjectPagingLoader<GraphPlace> loader, SimpleGraphObjectCursor<GraphPlace> data) {
super.onLoadFinished(loader, data);
// We could be called in this state if we are clearing data or if we are being re-attached
// in the middle of a query.
if (data == null || loader.isLoading()) {
return;
}
hideActivityCircle();
if (data.isFromCache()) {
// Only the first page can be cached, since all subsequent pages will be round-tripped.
// Force
// a refresh of the first page before we allow paging to begin. If the first page produced
// no data, launch the refresh immediately, otherwise schedule it for later.
loader.refreshOriginalRequest(
data.areMoreObjectsAvailable() ? CACHED_RESULT_REFRESH_DELAY : 0);
}
}
private void addResults(Response response) {
SimpleGraphObjectCursor<T> cursorToModify =
(cursor == null || !appendResults)
? new SimpleGraphObjectCursor<T>()
: new SimpleGraphObjectCursor<T>(cursor);
PagedResults result = response.getGraphObjectAs(PagedResults.class);
boolean fromCache = response.getIsFromCache();
GraphObjectList<T> data = result.getData().castToListOf(graphObjectClass);
boolean haveData = data.size() > 0;
if (haveData) {
nextRequest = response.getRequestForPagedResults(Response.PagingDirection.NEXT);
cursorToModify.addGraphObjects(data, fromCache);
if (nextRequest != null) {
cursorToModify.setMoreObjectsAvailable(true);
} else {
cursorToModify.setMoreObjectsAvailable(false);
}
}
if (!haveData) {
cursorToModify.setMoreObjectsAvailable(false);
cursorToModify.setFromCache(fromCache);
nextRequest = null;
}
// Once we get any set of results NOT from the cache, stop trying to get any future ones
// from it.
if (!fromCache) {
skipRoundtripIfCached = false;
}
deliverResult(cursorToModify);
}