Transferring data on the conversation

These topics discuss how to pass data between the front-end and back-end transactions.

Sending data to the partner transaction
The SEND command is used to send data to the connected partner.
Switching from sending to receiving data
There is more than one way of switching from send state to receive state .
Receiving data from the partner transaction
The RECEIVE command is used to receive data from the connected partner.
Waiting for a signal
A transaction can wait for its partner to send a signal. This is done by issuing the WAIT SIGNAL command and testing for the SIGNAL condition.
Combining sending and receiving
The CONVERSE command combines the functions SEND INVITE and RECEIVE.
Communicating errors across a conversation
If a transaction is receiving data on a conversation and needs to notify its partner of an error, it can use the ISSUE SIGNAL command to request that the partner does a SEND INVITE.
Safeguarding data integrity
If it is important to safeguard data integrity across connected transactions, then synchronization commands are available.

Parent topic: Writing programs for LUTYPE6.1 conversations