[rules-users] NESTED LOOPS Possible

Mark Proctor mproctor at codehaus.org
Mon Jul 23 03:25:36 EDT 2012


eval is only slower because it does not allow for indexing of data.

I don't believe your use case, which looks at nested data structures, 
would allow indexing of data either.

So you'll probably gain in performance from a hard coded java method.

Mark
On 22/07/2012 03:40, lhorton wrote:
> do not scoff so quickly, WL.  eval() can be a big performance kill, since
> eval() condition is always executed during rule evaluation.   For example,
> if the eval is on a remote invocation that might hang or be sluggish (long
> timeout) it can drag the server down.
>
>
>
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