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![Domain Specific Languages
Example:
DRL:
Song(genre == "Jazz")
DSL:
[Condition]There is a Jazz Song = Song(genre == "Jazz")](https://image.slidesharecdn.com/07drools5communitytrainingmodule6drools-110905072924-phpapp01/75/Drools5-Community-Training-Module-6-Drools-DSL-Spreadsheets-6-2048.jpg)
![DSL Example
DSL files have two main sections (condition / consequence) with the
following semantics:
[condition or consequence] natural language expression = drools mapping/execution expression
DSL semantics allow binding of variables in the natural language
expression to the drools expression:
When the user is called {userName} = User(name== "{userName}")
DSL resources must be added to kbuilder previous to DSLR](https://image.slidesharecdn.com/07drools5communitytrainingmodule6drools-110905072924-phpapp01/75/Drools5-Community-Training-Module-6-Drools-DSL-Spreadsheets-8-2048.jpg)
Uploaded byMauricio (Salaboy) Salatino
Drools5 Community Training Module 6 Drools DSL & Spreadsheets
The document outlines Module 6 of the Drools 5 community training focusing on DSL (Domain Specific Languages) and decision tables for rule expression. It explains the use of natural language and spreadsheets to express business rules more intuitively for subject matter experts. The training also includes practical lab examples and resources for implementing these concepts using Drools.
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Drools5 Community Training Module 6 Drools DSL & Spreadsheets
- 1.
- 2. Module 6: DroolsExpert DSL & Decision Tables Drools5 Community Training version: 1.0-SNAPSHOT Release Date: 03/16/2011 Under The Creative Common License
- 3. Module 6: DroolsExpert DSL & Decision Tables Drools5 Community Training Course by Mauricio "Salaboy" Salatino and Esteban Aliverti is licensed under a Creative Commons Attribution 3.0 Unported License. Based on a work at salaboy.wordpress. com. Permissions beyond the scope of this license may be available at http: //salaboy.wordpress.com/.
- 4. Agenda ● Other waysto express rules ○ Domain Specific Languages ○ Decision Tables
- 5. Other ways toexpress rules ● DSL -> Express Rules in natural Language ● SpreadSheets -> Express rules as decision tables
- 6. Domain Specific Languages Example: DRL: Song(genre== "Jazz") DSL: [Condition]There is a Jazz Song = Song(genre == "Jazz")
- 7. Domain Specific Languages ●Focused on Subject Matter Experts ● Natural Language ● Can be used in guided editor ● It's just mapping your business language in DRL
- 8. DSL Example DSL fileshave two main sections (condition / consequence) with the following semantics: [condition or consequence] natural language expression = drools mapping/execution expression DSL semantics allow binding of variables in the natural language expression to the drools expression: When the user is called {userName} = User(name== "{userName}") DSL resources must be added to kbuilder previous to DSLR
- 9. DSL Full Example DSLFile DSLR File
- 10. Decision Tables ● Morebusiness-user friendly ● Useful in situations when we have a lot of similar rules ● Drools supports XLS or CSV files ● Behind-the-scenes Drools transforms Decision Tables to vanilla DRL
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- 12. Hands on Labs Projects: ● 04 :: Drools Expert Spreadsheet Example ● 05 :: Drools Expert DSL Simple Example
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- 14. Enjoy! Questions andFeedback are always appreciated!
- 15.