Java Enterprise Edition Design Patterns
This and subsequent posts are a write up of my Java EE revisits design patterns talk at jDay Sweden 2016. The slides to the presentation are viewable here: Java EE Revisits [...]
Professional Java EE Design Patterns
Design Patterns: The Beginning
The Beginning Where did they come from? Did they just appear overnight? In fact, design patterns have a long history starting way before computing. But it wasn’t really [...]
Singleton Pattern
OK let’s have a look at our first pattern. The singleton pattern is one of the most well-known design patterns and is used extensively by frameworks such as Spring, pool [...]
Factory Pattern
The factory pattern is a creational design pattern whose intent is to provide an interface for creating families of related or dependent objects without specifying their [...]
Decorator Pattern
The decorator pattern is one of the GoF Structural Pattern and dynamically adds logic to an object. Instead of inheritance, the decorator adds functionality at run time. [...]
Observer Pattern
A little bit difficult to understand why it is needed in the first place and it goes down to the basic fundamental requirement of OO systems which is to pass a message from [...]
Java EE Revisits the Factory Pattern
The factory pattern is a creational design pattern whose intent is to provide an interface for creating families of related or dependent objects without specifying their [...]
The Beginning of Design Patterns
The Beginning Did they just appear overnight? Where did they come from? In fact, design patterns have a long history starting way before computing, in architecture. That’s [...]
Java Day Lviv 2015 Presentation Slides
Thank you to all who attended my Professional Java EE Design Patterns talk at the 2015 Java Day Conference in Lviv last weekend. Here are the slides from that [...]
Singleton Pattern in Java EE
The singleton pattern is one of the most well-known design patterns and is used extensively by frameworks such as Spring. Java EE offers an elegant and easy way to implement [...]