OK, so lets start off with the GOF Decorator Pattern which allows us to extend functionality at runtime, without using inheritance. The Decorator object wraps the instance whose functionality it's enhancing, but implements the same interface as the original object. It delegates calls to the wrapped object, but ...
I was recently studying patterns for the Sun Certified Enterprise Architect for Java EE 5 exam and I realised that I was really only familiar with a small proportion of them. I'd owned the seminal GOF Design Patterns book for 8 years and the Core J2EE Patterns book for five ...
