PduRequest

public abstract class PduRequest<R extends PduResponse>
extends Pdu, PduResponse

The base class for all request PDUs. It introduces support for generic response types and request-specific logic.
PduRequest is an abstract subclass of Pdu that represents all SMPP request PDUs. It defines the structure for sending commands to the SMSC and provides hooks for generating responses and handling errors. All SMPP command classes that initiate a communication (like SubmitSm, BindReceiver, QuerySm, etc.) extend this class.