Everit Expression-Jexl 1.0.0 release available

I am happy to announce the jexl based implementation of Everit expression-api.

We have used the mvel based implementation till now. Although it is 3x faster than jexl, we decided to go with the last one due to the following reasons:

  • To code of jexl is clean. In the future, we will be able to add the same optimizations as MVEL has. We could not really do bugfixing on MVEL as its code is messy.
  • As jexl does not have optimizers at the moment, it works well within OSGi. We had serious issues with MVEL and due to the messy code, it was truly hard to fix them.
  • Jexl uses the same syntax for inline maps and arrays as Javascript does. If we use jexl in templating-html, we will be able to use the template with a templating engine written in javascript later.

Balazs Zsoldos is the co-founder of Everit. He is the leader of the development of Everit OpenSource Components. Developing Java based solutions is not only his job but also his passion. He believes in simplicity. That is why he decided to design and build as many simple, but useful goal-oriented modules as he can. As the base of the stack, he chose OSGi. Balazs does not believe in monoholitic frameworks, therefore all of the solutions that was designed by him can be used separately. In the beginning of his career, Balazs was a big fan of JEE and Spring. After a while, he changed his mind and started to try replacing everything with non-magical solutions that do not contain interceptors, weaving, etc.

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