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The article discusses the use of Decision Tables in Elixir applications, emphasizing their value in managing complex business rules through the Tablex library. It explains how decision tables serve as a structured method for determining actions based on inputs and how they can be optimized for performance by compiling them into Elixir code. The article also touches on the potential benefits of using decision tables, including streamlined configuration management and consistent performance levels, while hinting at exploring advanced features in future articles.
Main Points
Understanding the value of Decision Tables
A Decision Table provides a structured format for determining actions based on various inputs, making it an invaluable tool for managing complex business rules.
Implementing Decision Tables with Tablex
The Tablex library simplifies the creation and management of decision tables in Elixir, allowing even non-programmers to update rules easily.
Optimizing Decision Table Performance
Performance can be significantly improved by compiling decision tables into Elixir code, thus avoiding the overhead of parsing decision tables for each execution.
Insights
A Decision Table is a visual tool for managing business rules.
It serves as a visual representation of how various actions are determined based on different inputs. It’s especially useful in scenarios like online bookstores offering discounts based on user VIP levels and order amounts.
The Tablex library aids in the implementation of decision tables in Elixir applications.
The library allows for representing decision tables in a textual format, which can then be parsed into a table in memory for decision making. This facilitates the management of dynamic business rules without altering the primary application code.
Compiling decision tables into Elixir code can optimize performance.
By compiling the decision table into Elixir code, the need for string parsing during every execution is eliminated. This method enhances efficiency, especially when decision table rules are frequently executed.
Links
URL
https://q-the-hacker.com/post/decision-tables-in-elixir-applications-part-1?utm_source=elixir-merge&s=31