A subscription-level user exit lets you define a set of
actions that CDC Replication can
run before or after a commit event occurs on a specified subscription.
About this task
Subscription-level user exits can work alone or in tandem
with table-level user exits, to keep track of which table-level user
exits were called during a transaction. The subscription-level user
exit could then use that information to apply actions based on the
tables in the transaction.
- Click
.
- Select the subscription.
- Right-click and select User Exits.
- Select Java Class from the User
Exit Type list.
- Enter the name of the Java™ class
user exit that implements the SubscriptionUserExitIF interface in
the Class Name box.
For example,
you may have imported the SubscriptionUserExitIF interface, and the
user exit program class that implements this interface in your function
has the following definition:
public class UE1 implements SubscriptionUserExitIF
In
the
Class Name box, you must type:
UE1—Indicates a stand-alone
class.<Java package>.UE1—Indicates
that the class is included in a Java package
(for example, com.datamirror.interface.UE1).
The files you generate from compiling the user exit program
must be located in a library or folder that is referenced by the CLASSPATH
environment variable.
- Enter the parameters that you want to make available to
the user exit program in the Parameter box.
You can access the parameters in the user exit program class
by invoking the getParameter( ) method during the initialization process.
There are no conventions for specifying the parameters. The values
you type in this box are free-form. The string of parameter values
cannot exceed 255 characters in length.