Database Reference
In-Depth Information
Figure 10-12. Configuration information in the EM12c console
Although defining configuration metrics looks a bit cumbersome, it becomes reasonably clear once you get the
hang of it. The good news is that all configuration management features are immediately available, just as for standard
Oracle targets, but without any change management licensing options. These features include configuration comparison
between different targets or comparison with a saved configuration as well as tracking configuration changes over time.
More-Advanced Features
You've gone through the basic plug-in features as well as some of the advanced features such configuration
management, and there are more available. Armed with this basic knowledge and the practical skills you gained by
playing with the provided sample, you can consult the documentation for more-advanced features available to you
as a plug-in developer. Note that if the documentation is not clear (and you will notice that on several occasions), you
can also consult the existing sample plug-ins provided with the EDK, Oracle's own out-of-the-box plug-ins, as well as
the XML Schema definitions in the additional documentation coming as part of the EDK.
The following list briefly introduces the features not covered in this chapter and the functionality they provide:
Job Types : Plug-in developers can extend the EM12c job system by defining new job types.
The job system is flexible and allows specifying rules how job parameters are defined, which
credential should be used, how to control access to jobs, and how to serialize jobs. Job types
are defined in the oracle.samples.xsh2 plug-in.
Credentials : Credentials are needed to support the jobs framework as well as to provide a secure
alternative to defining passwords and passing to fetchlets in a more secure way than via instance
properties. (Remember that command lines and environment variable content is not protected
from other users.) While credentials are already defined in the oracle.samples.xsh1 plug-in,
they are not used until oracle.samples.xsh2 , so use this plug-in to study Credentials examples.
 
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