internal EnumerationDataChunk GetNextChunk(EnumerationPointer pointer)
{
EnumerationDataChunk nextChunk = null;
IEnumerationProvider provider = GetProvider(pointer);
if (pointer.isDisposable && provider != null)
{
provider.Dispose();
if (_index.ContainsKey(pointer))
{
_index.Remove(pointer);
}
nextChunk = new EnumerationDataChunk();
nextChunk.Pointer = pointer;
}
else if (provider != null)
{
nextChunk = provider.GetNextChunk(pointer);
//Dispose the provider if this is the last chunk for it
if (nextChunk.IsLastChunk)
{
provider.Dispose();
if (_index.ContainsKey(pointer))
{
_index.Remove(pointer);
}
}
}
return(nextChunk);
}
/// <summary>
/// Recupera o próximo pedaço.
/// </summary>
/// <param name="pointer">Ponteiro para o pedaço.</param>
/// <returns></returns>
internal EnumerationDataChunk GetNextChunk(EnumerationPointer pointer)
{
EnumerationDataChunk nextChunk = null;
IEnumerationProvider provider = this.GetProvider(pointer);
if (pointer.IsDisposable && (provider != null))
{
provider.Dispose();
if (_index.ContainsKey(pointer))
{
_index.Remove(pointer);
}
nextChunk = new EnumerationDataChunk();
nextChunk.Pointer = pointer;
return(nextChunk);
}
if (provider != null)
{
nextChunk = provider.GetNextChunk(pointer);
if (nextChunk.IsLastChunk)
{
provider.Dispose();
if (_index.ContainsKey(pointer))
{
_index.Remove(pointer);
}
}
}
return(nextChunk);
}
