Archive for May, 2010

Data Access Object Design Pattern in J2EE

May 2 201017 Commented

Categorized Under: Java

Data access object (DAO) pattern is one of the core J2EE patterns used in many enterprise level applications. It provides a clean separation for various methods of data access and central point of access to data source.

Factory Design Pattern in Java

May 1 201022 Commented

Categorized Under: Java

Factory method is a creational design pattern widely used in many libraries and toolkits. It provides a unified interface to instantiate appropriate sub classes at runtime based on specific conditions.