Cayenne User Documentation
DataContextFactory

To customize how the DataContext is built, an optional DataContextFactory can be registered with DataDomain in the Modeler. The class name you enter must implement `org.apache.cayenne.access.DataContextFactory` interface. If a factory is entered, Cayenne will use it in all places where the DataContext is created. A single factory instance is reused for the life of the DataDomain.

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