3.2.1 Which LANSA Open Function to Use and When
When using LANSA Open functions, there will always be a consistent structure to your program or application. Your applications will have four basic sections. These are:
|
Session Management (Open Session) |
Opens a communication session with the host and obtains the session identifier. |
|
Session Definition |
Defines the application-specific session characteristics for the host. |
|
Data Access |
Accesses data on the host. |
|
Session Management (Close Session) |
Closes an opened host session. |
The majority of the LANSA Open functions are only executed in one of these sections. Which functions go where is explained in this section.
The sample programs supplied with the LANSA Open software, as well as those provided on LANSA's web site show you how these functions are used in an application.