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the built-in collections for java have good performance and are nice to use – especially with the new for-loop pattern. but are there alternatives? and if so, why should i use them? (please use the comment functionality
) the following collection implementations i found on the web:
- gnu trove (lgpl)
- commons collections aka jakarta collection (apache license)
- google collections (apache license)
- concurrent building blocks (apache license)
- javolution (bsd license)
- glazedlists collections (lgpl or mpl) from the glazedlists project
- ( priorityqueue from lucene project or also from commons collections )
- fastutil (lgpl)
there are also some older projects, which seem to be abandoned:
if you need real big data in memory you should consider a lightweight database (or a real one??) like neodatis , derby or something really interesting: hbase from the hadoop project (apache/yahoo!).
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