Re: [rules-users] Problems with Domain Specific Language in eclipse
Personally - I would rather get an error when I make a mistake (e.g. do not write the DSL correctly) than get get an error for writing perfectly valid code. [Swindells, Thomas] But it isn't valid DSL code. DSL is normally written by business users who don't know anything about DRL, this is the target audience and for these people you don't want them to be able to accidentally do additional logic. Eclipse does support a DSL expansion window which allows you to find issues like misspellings. The current approach requires a total commitment to DSL even if you want to use it under rare circumstances. I did note your suggestion about prefixing with '', but then my RHS looks different in rule files where I use DSL than it does in files where I do not use DSL (something I would rather avoid). Your entire file looks different in DSL than in a DRL anyway, it's a different language that allows embedding DRL, personally I think it is a good feature to explicitly need to identify that you know what you are doing. Thomas ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Problems with Domain Specific Language in eclipse
Thomas: Yes, that explains why you implemented it as you did. I guess we'll just have to agree to disagree. It appears possible to replace the Expander when bringing up the system in Java ... is it possible to replace the Expander used by the Eclipse plug-in? Thanks, Ron -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Problems-with-Domain-Specific-Language-in-eclipse-tp3579963p3582705.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Problems with Domain Specific Language in eclipse
I am just trying to learn DSL and have immediately run into issues.
I have a simple DSL in the file named XEasyApp.dsl :
*[condition][]{value} is an invalid Boolean={value} not
in(T,t,1,F,f,0)*
and then a simple DSLR in the file named Test.dslr:
*package com.onfs.easyapp.rules
import com.onfs.easyapp.EasyApp
expander XEasyApp.dsl
rule EasyApp Insured is Citizen Validation
when
$ea : EasyApp(priIns_eaInsuredIsCitizenInd is an invalid
Boolean)
then
$ea.addError(drools.getRule().getName());
end*
I get the expected expansion in the DRL Viewer:
package com.onfs.easyapp.rules
import com.onfs.easyapp.EasyApp
rule EasyApp Insured is Citizen Validation
when
$ea : EasyApp(priIns_eaInsuredIsCitizenInd not
in(T,t,1,F,f,0))
then
$ea.addError(drools.getRule().getName());
end
There are no Red X's when I view Test.dslr in the editor, however a problem
shows up in the Problems area below:
*DescriptionResourcePathLocationType
[13] Unable to expand: $ea.addError(drools.getRule().getName());
Test.dslr/TermXpressRules/src/main/rulesUnknownDrools Error*
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Re: [rules-users] Problems with Domain Specific Language in eclipse
I see that essentially the same question was asked right before I asked this one. I was expecting that DSL would translate only where there were DSL translations available and leave the rest untouched. I did not expect it to be an error if no expansion was available (nor do I understand why that is the case). -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Problems-with-Domain-Specific-Language-in-eclipse-tp3579963p3580049.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Problems with Domain Specific Language in eclipse
You have got to... On 12 December 2011 18:18, ronalbury ronalb...@gmail.com wrote: I see that essentially the same question was asked right before I asked this one. I was expecting that DSL would translate only where there were DSL translations available and leave the rest untouched. I did not expect it to be an error if no expansion was available (nor do I understand why that is the case). ...see this from the reverse angle: people using DSL for the RHS would be very surprised if the failure to expand a misspelled DSLR would not be flagged. Fish or flesh. See the 3rd option I indicated in that other thread. -W -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Problems-with-Domain-Specific-Language-in-eclipse-tp3579963p3580049.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Problems with Domain Specific Language in eclipse
Personally - I would rather get an error when I make a mistake (e.g. do not write the DSL correctly) than get get an error for writing perfectly valid code. Eclipse does support a DSL expansion window which allows you to find issues like misspellings. The current approach requires a total commitment to DSL even if you want to use it under rare circumstances. I did note your suggestion about prefixing with '', but then my RHS looks different in rule files where I use DSL than it does in files where I do not use DSL (something I would rather avoid). -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Problems-with-Domain-Specific-Language-in-eclipse-tp3579963p3580113.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
