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From "Wernke zur Borg (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAY-1655) Logger injection to JdbcAdapter subclass does not work
Date Tue, 24 Jan 2012 13:56:40 GMT
Logger injection to JdbcAdapter subclass does not work
------------------------------------------------------

                 Key: CAY-1655
                 URL: https://issues.apache.org/jira/browse/CAY-1655
             Project: Cayenne
          Issue Type: Bug
          Components: Core Library
    Affects Versions: 3.1M3
         Environment: Windows 7, MS Access, JdbcOdbc driver
            Reporter: Wernke zur Borg


I created a custom subclass of JdbcAdapter for some special handling with MS Access. It is
instantiated by a custom DbAdapterFactory subclass, which is configured as:

		Module m = new Module() {
			public void configure(Binder binder) {
				binder.bind(DbAdapterFactory.class).to(MyCustomDbAdapterFactory.class);
			}
		};

Now the application runs into a NullPointerException in org.apache.cayenne.access.jdbc.SelectAction.performAction()
where it says:

adapter.getJdbcEventLogger()...  (line 171)

This means that the injection of the JdbcEventLogger "logger" in my superclass JdbcAdapter
has not taken place. It might be important that also SelectAction has been subclassed with
a custom SelectAction.

The problem does not occur when I comment the binder.bind(...) line out.

Workaround: Instantiate a CommonsJdbcEventLogger in the custom JdbcAdapter and assign it to
the logger (it is protected). But this logger is not aware of the log4j log level. 



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