/// <summary>
/// Creates the new regional book instance
/// </summary>
/// <remarks>
/// Don't call this constructor inside any listeners and callbacks of NativeSubscription, NativeConnection,
/// NativeRegionalBook, NativeSnapshotSubscription classes
/// </remarks>
/// <param name="connection">The current connection</param>
/// <param name="symbol">The book symbol</param>
/// <param name="bookListener">The book listener implementation</param>
/// <param name="quoteListener">The quote listener implementation</param>
/// <exception cref="ArgumentException"></exception>
public NativeRegionalBook(NativeConnection connection, string symbol, IDxRegionalBookListener bookListener,
IDxQuoteListener quoteListener)
{
if (string.IsNullOrWhiteSpace(symbol))
{
throw new ArgumentException("Invalid symbol parameter.");
}
this.bookListener = bookListener;
this.quoteListener = quoteListener;
if (bookListener == null && quoteListener == null)
{
return;
}
C.CheckOk(C.Instance.dxf_create_regional_book(connection.Handle, symbol, out bookHandle));
try
{
if (this.bookListener != null)
{
C.CheckOk(C.Instance.dxf_attach_regional_book_listener(bookHandle, nativeBookListener = OnBook, IntPtr.Zero));
}
if (this.quoteListener != null)
{
C.CheckOk(C.Instance.dxf_attach_regional_book_listener_v2(bookHandle, nativeQuoteListener = OnQuote, IntPtr.Zero));
}
}
catch (DxException)
{
C.Instance.dxf_close_regional_book(bookHandle);
throw;
}
}
/// <summary>
/// Creates a regional book
/// </summary>
/// <remarks>
/// Don't call this method inside any listeners and callbacks of NativeSubscription, NativeConnection,
/// NativeRegionalBook, NativeSnapshotSubscription classes
/// </remarks>
/// <param name="symbol">Single symbol name</param>
/// <param name="bookListener">Regional book changes listener. Null is allowed.</param>
/// <param name="quoteListener">Quotes listener. Null is allowed.</param>
/// <returns>regional book object</returns>
public IDxRegionalBook CreateRegionalBook(string symbol, IDxRegionalBookListener bookListener,
IDxQuoteListener quoteListener)
{
return(new NativeRegionalBook(this, symbol, bookListener, quoteListener));
}
