[rules-dev] Which of these scenarios will lead to better performance?

[Michael Neale]

probably better ask the user forum, this is dev. Unless this has dev
ramifications, which it doesn't (yet).

dev == developing the engine itself (and tools) not so much for writing
rules and design of applications ;)

On 3/23/07, Premkumar Stephen <prem18 at gmail.com> wrote:
>
> Hi,
>
> Consider that I have 500 instances of interface userI. Now, there are 3000
> rules currently written based on a combination of these instances.
>
> if {
>      $a : userI (name = "A")
>      $b : userI (name = "B")
> }
> then
> {
>  //do some actions
> }
>
> How many tests are needed for a match in the RETE network for this rule?
>
> If I created 500 classes, one for each object, such as UserA implements
> userI and so on... my rule will look like:
>
> if {
>      $a : UserA()
>      $b : UserB()
> }
> then
> {
>  //do some actions
> }
>
> Will this lead to better performance since there will only be one such
> instance of this object?
>
> As for class-loading concerns, will there be a parsing/memory penalty to
> be paid for having 500 classes now instead of one?
>
> Thanks!
>
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>
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