Databases and queries

Getting the model out of the database, in a way that is not tied to one persistence framework.

• The connection pool - DomUI's own JDBC pool, and what it tells you about the SQL your application runs.
• The Hibernate/JPA POJO generator - generating data classes from an existing database schema.

Writing the queries themselves is part of the walkthrough: Using databases and Typed properties. What the query layer is made of - executors, selections, subqueries - is in The generic query layer (QCriteria). Moving that model into a screen and back is Data binding, with Data binding details under it.