On 5 July 2011 10:39, lansyj <span dir="ltr"><<a href="mailto:lansyjp@gmail.com">lansyjp@gmail.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi,<br>
<br>
We are planning to use Drools for a Blacklist validation logic which<br>
requires us to manage very long list (could be tens of thousands of IDs).<br>
Can we use the native Drools enumeration for this?</blockquote><div><br>What do you mean by "native Drools enumeration"? <br><br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Would this be an optimal<br>
implementation?<br></blockquote><div><br>IDs such as phone numbers or email addresses are strings, so what sort of access do you need that's not efficiently feasible with a hash map or hash set? Detailed knowledge of the value disrtibution of your IDs might be used for an optimum hash function, but that's a technicality. <br>
<br>-W<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
The other option we were thinking of was to have a list managed separately<br>
in our core application and have in lucene indexed such that Drools rule<br>
checks against the index. But, as you can see, it creates a lot of<br>
development as well as maintenance overhead.<br>
<br>
Thanks in advance for any tips on this topic.<br>
<br>
Best Regard<br>
<br>
-lj<br>
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