[henshin-dev] New Interpreter API and performance

[Christian Krause <henshin.ck@xxxxxxxxx>]

Fellows,

I reintegrated the new interpreter API into the trunk again. All 
plug-ins that use the interpreter are updated. All tests pass and the 
examples work. So I hope that everything is ok.

The new version of the interpreter also comes with a reimplemented, 
light-weight change model. We only ran a few tests but the results were 
already amazing. In the examples we tried we had a performance gain of 
around 50% - 75%! The EMF change model we used before turned out to be 
to slow and to general for Henshin. Tomorrow we will run another 
benchmark with one of our Master students and check whether the 
performance gain is again so large. We will also compare the performance 
with two other tools.

The new interpreter version is available in trunk of the SVN and from 
our nightly-builds update site.

I still want to make some changes to the tests and work a bit more on 
the examples. If everything goes well, I think we can make a release in 
2 weeks so that everybody can switch to the new API and profit from the 
performance improvements.

Cheers,
Christian