Github user spmallette commented on the pull request:
https://github.com/apache/incubator-tinkerpop/pull/307#issuecomment-218128585
This is an interesting change. I was surprised to see that much difference
between `compile()` and `eval()`. `eval()` ultimately calls compile but does
cache the compile script for future use. I would have thought that would have
narrowed the gap you managed to get between the two calls. There's a fair bit
of code in `eval()` that gets executed with or without the cache as compared to
`compile` so perhaps that has something to do with it. As the execution here
is about usage of the same script over and over there is little need for
`eval()` so this change makes sense to me.
I will only note that this forces the `ScriptEngine` we use to for
`ScriptRecordReader` to implement `Compileable`. Not all implementations do
that and it is not a required interface to the best of my recollection. That
probably doesn't matter too much as we've currently hardcoded the groovy script
engine in here.
Ran `mvn clean install` to success.
VOTE +1
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