While designing the application we need to consider the multiple aspect of the application to reduce efforts put into maintaining the app as well it will be easy to adopt the changes while the development all the refactoring pain points can be considered while designing itself it will be easy to do the same in the future also we can avoid the rework.
To make sure this we should try creating small modules in the app for specific parts which will be dedicated to respective functionality. All the dedicated entities should reside in respective modules so that access control and security configuration will be easy. Refactoring will be required throughout the development, it can be due to multiple reasons like requirement change, complexity increases on specific features and if we do not refactor the code, it will be difficult to maintain the app in feature.
Two major refactoring in Mendix involves the Domain Model and Microflow
In Traditional development we call it normalization, it is a process of organizing data in a relational database to reduce redundancy, improve data integrity and minimize the risk of data inconsistencies. It involves breaking down larger tables into smaller, more manageable ones that are linked through associations and constraints. The goal of normalization is to optimize data storage and retrieval performance and improve the overall efficiency and scalability of the database.
Similarly, normalizing a domain model in Mendix involves breaking down large or complex entities into smaller, more manageable ones that are better optimized for data storage and retrieval. The goal is like normalization, which is to minimize redundancy, improve data integrity, and reduce the risk of data inconsistencies.
Unfortunately, many Mendix developers doesn’t aware traditional database development which leads unnecessary entities, relationship between entities, usage of the persistent and non-persistent entities.
At a high level to refactor a domain model in Mendix, developers can follow best practices such as:
Refactoring a domain model in Mendix can be a challenging process that requires careful planning and execution. The domain model is a critical part of a Mendix application, and any changes to it can have a significant impact on the application’s functionality, performance, and scalability. Some of the challenges that developers may face when refactoring a domain model in Mendix include:
To address these challenges, developers can follow Standard operating procedure (SOP) such as creating a backup of the existing domain model before making changes, carefully planning and testing data migration, and using automated testing tools to identify and fix issues. Additionally, developers can work closely with stakeholders and end-users to ensure that any changes to the domain model are aligned with business requirements and do not impact the end-user experience.
This process involves restructuring and optimizing microflows to improve their performance, maintainability, and scalability. Microflows are a fundamental building block in Mendix application development, and they are used to model business processes and workflows. Over time, as the application grows and evolves, microflows can become complex and difficult to manage, leading to issues such as poor performance, increased technical debt, and reduced maintainability. E.g., Each microflows should be dedicated to achieving one functionality and you can call multiple SubMicroflows in Main microflows to achieve the complete goal. Any business logic can be used at multiple places should be moved to SubMicroflows.
To address these issues, Mendix developers should regularly review and refactor their microflows. This involves breaking down complex microflows into smaller, more manageable ones, simplifying conditional expressions and loops, removing unnecessary actions, and optimizing queries and other data access operations.
There are several benefits of microflow refactoring in Mendix. Firstly, it can improve the performance of the application by reducing the number of database queries and optimizing data retrieval and manipulation. Secondly, it can improve the maintainability of the application by making microflows easier to understand and modify, reducing the risk of bugs and other issues. Finally, it can improve the scalability of the application by ensuring that microflows can handle increased loads and volumes of data.
To perform microflow refactoring in Mendix, developers should follow Mendix provided guidelines such as defining clear naming conventions, breaking down microflows into smaller, more manageable ones, avoiding unnecessary complexity, and using best practices for data access and manipulation. Additionally, developers can use tools such as the Mendix Modeler to analyze the complexity of their microflows and identify areas that need optimization.
Additionally, the following can be considered as refactoring in Mendix.
Refactoring is an important process in Mendix development that involves improving the design, structure, and quality of the application to improve maintainability, performance, and scalability. However, it is essential to ensure that the refactoring process does not result in rework, which can occur when changes are not properly planned or executed.
To avoid rework during Mendix refactoring, it is crucial to consider design considerations such as architecture, data models, and software patterns. These design considerations help to ensure that the refactoring process is executed in a way that is compatible with the existing codebase, and that the changes made do not introduce new bugs or issues.
For example, when refactoring a Mendix application, developers should consider the existing architecture and ensure that the changes made align with the overall design principles of the application. They should also consider the data models used in the application and ensure that any changes made do not impact data integrity or consistency.
By Uma Raj
By Uma Raj
By Abishek Balakumar