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In this section we will focus on the use a database for verifying and retrieving user names and passwords.
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Now you have a new, fully configured, security realm that retrieves user names and passwords from the build in Derby database.
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If you get an error the first time you try to validate this realm, you will very likely see the SQL Exception: Failed to start database ... error in the terminal and logs. This is a know issue with Derby, you will need to restart Geronimio so the new database can communicate properly.
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The following example shows the deployment plan for this security realm. As an alternative to the Geronimo Administration Console, you can save this example to a file (i.e. derby_security_realm.xml) and deploy it with the Deployer tool by running the following command:
<geronimo_home>\bin\deploy --user system --password manager deploy <realm_path>\derby_security_realm.xml
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Once the security realm has been created, you can use the usage link to view samples of how to use the new realm in your applications.