The DAO-Generator lets you generate java code for developing persistent objects. It follows the Data access object design pattern and completely generates extremely fine-grained classes for the data access layer. A typical DAO implementation has the following components:

A DAO factory class
A DAO interface
A concrete class that implements the DAO interface
Data transfer objects (value object)

The concrete DAO class contains logic for accessing data from a specific data source.

DAOs are transactional objects. Each operation performed by a DAO such as creating, updating, or deleting data is associated with a transaction.

DAO-Generator connects to a database and generates the following type of files for each entity in that database.

DAO Interface
DAO Implementation
Record Count Interface
Record Count Implementation
Entity Value Object
Record Count Value Object
Primary Key Class
Exception Classes
DAO Factory Interface
DAO Factory