Three Built-In Functions are required for a LANSA RDMLX client to have complete interaction with the Java Service Manager services.
These Built-In Functions allow multiple concurrent connections in the same function.
Initialize or re-initialize the service program internal state. | |
Open service | |
Send command. | |
Close service. | |
End and re-initialize the service program internal state. |
The LANSA developer only needs to understand how to use the commands offered by the JSM services.
The overall structure of the LANSA RDMLX functions will be the same.
The function will perform the following operations:
BEGIN using the Built-In Functions.
OPEN connection to the Java Service Manager.
Issue a COMMAND to LOAD the service.
Execute COMMANDs supported by the service.
Issue a COMMAND to UNLOAD the service
CLOSE connection to the Java Service Manager
END using the Built-In Functions.
Overview of field and list exchange
Command | No fields | No list | ||
Command SERVICE_EXCHANGE(*FIELD|*FIELDS) | Fields | No list | ||
Command | #WRKLST | No fields | List | |
Command | #FLDLST | Specified fields | No list | |
Command | #FLDLST | #WRKLST | Specified fields | List |
Command SERVICE_EXCHANGE(*FIELD|*FIELDS) | #WRKLST | Fields | List | |
Command SERVICE_EXCHANGE(*FIELD|*FIELDS) | #FLDLST | #WRKLST | Specified fields | List |
Specified fields take precedence over SERVICE_EXCHANGE(*FIELD) or SERVICE_EXCHANGE(*FIELDS) keyword.