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https://issues.apache.org/jira/browse/CAY-1655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13204351#comment-13204351
]
Wernke zur Borg commented on CAY-1655:
--------------------------------------
Hi Andrus, thanks for testing this.
My factory is as simple as:
public class MyCustomDbAdapterFactory implements DbAdapterFactory {
public DbAdapter createAdapter(DataNodeDescriptor nodeDescriptor,
DataSource dataSource) throws Exception {
return new MyCustomAdapter();
}
}
My adapter looks like this:
public class MyCustomAdapter extends JdbcAdapter {
public MyCustomAdapter() {
this.logger = new CommonsJdbcEventLogger(); // only because
logger injection does not work for me
}
@Override
public SQLAction getAction(Query query, DataNode node) {
return query.createSQLAction(new MyCustomActionBuilder(this,
node.getEntityResolver()));
}
}
MyActionBuilder just overrides objectSelectAction() because I need a specific
syntax for the SELECT query.
> 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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