Low Level Database Access: Difference between revisions

DAO classes should never be instantiated directly. Instead you should (and marauroa does) use the DAORegistry. This allows you to write a subclass of a DAO provided by marauroa and register it instead. If you are familiar with Spring, this is a similar concept. But without all the bulk of xml configuration files, parameter injection and interfaces with only one single implementation.

Imagine you want to subclass the CharacterDAO with your class SomeGameCharacterDAO:

<source lang="java">

public class SomeGameCharacterDAO extends CharacterDAO {

...

</source>

You simply register it as

<source lang="java">

DAORegistry.get().register(CharacterDAO.class, new SomeGameCharacterDAO());

</source>

Note: In the register call the first parameter is the parent class you want to replace.