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From "Andrus Adamchik (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAY-1988) ServerRuntimeBuilder: created implicit DataNode does not have domain's DataMaps linked
Date Sat, 21 Feb 2015 17:37:12 GMT
Andrus Adamchik created CAY-1988:
------------------------------------

             Summary: ServerRuntimeBuilder: created implicit DataNode does not have domain's
DataMaps linked
                 Key: CAY-1988
                 URL: https://issues.apache.org/jira/browse/CAY-1988
             Project: Cayenne
          Issue Type: Bug
          Components: Core Library
    Affects Versions: 4.0.M2
            Reporter: Andrus Adamchik
            Assignee: Andrus Adamchik
            Priority: Minor


A project consisting of a single DataMap with no mapped DataNodes is loaded as follows:

return new ServerRuntimeBuilder()
				.addModule(binder -> binder.bind(SchemaUpdateStrategy.class).to(CreateIfNoSchemaStrategy.class))
				.jdbcDriver(driver).url(url).addConfig("cayenne-project.xml").build();

When CreateIfNoSchemaStrategy is invoked on startup, it generates exactly zero tables. When
digging deeper I noticed this is caused by SyntheticNodeDataDomainProvider failing tolink
any DataMaps to the "synthetic" DataNode from the parent domain. So CreateIfNoSchemaStrategy
has nothing to work with.

The workaround is probably to create a dummy DataNode in the project. But it is not very clean.



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