[rules-users] case in-sensitive string comparison?

[Wolfgang Laun]

If (re)writing the rules to replace String "==" and "!=" with a custom op
for String eq and ne is an option, then it's simple to provide this
operator.

The link is http://members.inode.at/w.laun/drools/CustomOperatorHowTo.html

-W

2010/11/4 Michael Anstis <michael.anstis at gmail.com>

> You could look at using your own custom operator.
>
> Wolfgang Laun linked to an article of his recently explaining the approach.
>
> I'm not sure if custom operators however allow for indexing in the RETE
> network and therefore whether they're any faster than eval.
>
> Wolfgang, Edson, can you advise in your experience?
>
> Thanks,
>
> Mike
>
> On 4 November 2010 16:04, H.C. <canterburry at gmail.com> wrote:
>
>>
>> We have a requirement to display data as stored (with the right casing)
>> but
>> for evaluation purposes strings should be compared case in-sensitive. We
>> have several hundred rules touching these particular strings and would
>> really like to avoid doing eval( x != null && x.equalsIngoreCase(y) )
>> everywhere. Is there anywhere in drools that we could configure to make
>> string matching case in-sensitive?
>>
>> Since we have to display the data with casing elsewhere, putting
>> x.toLowerCase() in all our getter methods doesn't seem to be an option.
>> --
>> View this message in context:
>> http://drools-java-rules-engine.46999.n3.nabble.com/case-in-sensitive-string-comparison-tp1842677p1842677.html
>> Sent from the Drools - User mailing list archive at Nabble.com.
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>
>
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