Happy-Guys

happy-commons

happy-commons is a java-library, which is building the basement for our software development. It contains many innovative concepts and design patterns!

Version 1.0 is now published!

Features:

• ParallelFor/ParallelForEach- well known parallel constructs are improved by having more execution-control and implemented by using Fork/Join Frameworks of Doug Lea
• Delegate - is encapsulated to a class and can be compared to the .NET delegate language construct from C#.
• Version Design Pattern - Old components will be supported by new version of the software.

License: Apache License Version 2.0

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happy-collections

The happy-collections extends JDK java.collections, but also very well known collections from Google and Appache. happy-collections is a set of decorators, which can be used for decorating existing Classes which implements the JDK-interfaces java.util.List, java.util.Collection, java.util.Set, java.util.Map.

Version 1.0 is now published!

Features:

• Eventbased - if a collection is modified, the registered event will be fired
• Unmodifieable - you can decorate the collection, list, set, map by allowing for example only add new elements but nor removing any existing elements.
• SortedList - the decorator which decorates java.util.List to be sorted. Thus the list stays always sorted. There are two strategies implemented: (1) Linked and (2) Binary-Search. The Sorted List can increase the performance of the java.util.List dramatically (more than 20 times), see example section!
• Cache - this Decorator caches the often used elements and improves this way the performance of Collection.contains() method (see benchmark results).

License: Apache License Version 2.0

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