Does this skill support database aggregations?

Yes, it provides specific patterns for implementing custom aggregate functions, such as weighted averages, that translate into SQL SUM and arithmetic operations.

How can I verify that my custom translator works?

The skill includes guidance on using unit tests to verify both the structural integrity of the translated expression and the accuracy of the evaluated result.

When should I use this skill?

Use this skill when you need to implement specialized computations, custom business rules, or complex aggregations that aren't provided by the default JUDO expression library.

What is a JUDO Custom Function translator?

It is a Java-based component that converts custom domain-specific expression types into standard expressions that the JUDO runtime can process and eventually transform into SQL.

How do I register a custom translator?

You define your custom expression class, implement the Function interface for translation, and register it within a Guice-based AbstractModule using the Translator registry.

JUDO Custom Expression Translators

Name: JUDO Custom Expression Translators
Author: BlackBeltTechnology

byBlackBeltTechnology

0•

Database Management

Extends the JUDO Expression module by implementing custom translators for domain-specific logic and specialized calculations.

This skill empowers developers working with the JUDO Core runtime to define and register custom expression types that seamlessly integrate with the system's translation engine. By providing a structured way to transform complex domain-specific logic—such as custom discounts or weighted averages—into standard expressions, it ensures that specialized computations flow correctly through the query layer to the RDBMS. It is particularly useful when the standard expression library doesn't cover specific business rules or complex mathematical aggregations required for database-driven applications.

Key Features

01Custom translator registry for mapping expressions to standard functions

020 GitHub stars

03Domain-specific expression definition for custom business logic

04Standardized patterns for testing and verifying translator accuracy

05Seamless integration with the JUDO Core Query layer and SQL generation

06Support for advanced custom aggregate functions like weighted averages

Use Cases

01Implementing complex pricing or discount rules directly within the expression engine

02Creating specialized mathematical aggregations for data-heavy reporting

03Extending the JUDO runtime to support non-standard SQL operations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add blackbelttechnology/judo-runtime-core custom-functions

For use in Claude.ai and ChatGPT

Download Skill