Before you begin
A diagnostic application module is a software component that you configure to monitor an aspect of a running application or application module. Diagnostic application modules are similar to diagnostic system modules, but you can configure only instrumentation in a diagnostic application module. (You can configure additional diagnostic features in a diagnostic system module. See Create diagnostic system modules) When you configure instrumentation for an application, you can use standard diagnostic monitors and diagnostic actions from the WebLogic Diagnostic Framework Instrumentation Library, or you can create your own diagnostic monitors and then attach diagnostic actions from the library to them.
To configure application-scoped instrumentation in the Administration
Console, you must first create a well-formed diagnostics descriptor file
weblogic-diagnostics.xml and place it in the root
META-INF directory of the application or application
module. (See "Configuring Application-Scoped Instrumentation" in
Configuring and Using the WebLogic Diagnostics Framework.) Once
that file is created and placed in the directory, you can start the
Administration console to create or modify the diagnostic monitors in
the diagnostic application module.
Note: To enable instrumentation for an application or module, you must also enable instrumentation for the server or cluster to which the application or module is deployed. See Enable or disable instrumentation in a diagnostic system module
The pattern expression is a list of packages or classes, separated by commas, to include or exclude. You can use the asterisk (*) wildcard to represent one or more characters.
The expressions are evaluated as follows: