Function-String Class

The Replication Server managing a database requires a function-string class. Replication Server provides function-string classes for Adaptive Server, and with its non-ASE data server support features, Replication Server provides function-string classes for all actively supported data servers.

Replication Server sends the gateway a command that it constructs by mapping runtime values into the function string supplied for the function. Depending on how the function string is written and the requirements of the data server, your gateway can pass the command directly to the data server or process it in some way before it sends the request to the data server. See the Replication Server Options documentation for the actively supported data servers.

See the Replication Server Administration Guide Volume 2 > Customizing Database Operations for a list of Replication Server system functions that your database gateway may need to process.

• Creating Function-String Classes Using Inheritance
  Replication Server lets you share function-string definitions between function-string classes by creating relationships between classes using a mechanism called function-string inheritance.
• Creating Distinct Function-string Classes
  If you use a class that does not inherit from a system-provided class, you must create all function strings yourself, and add new function strings whenever you create a new table or function replication definition.