Tuesday, March 24, 2020

Celesta: SQL Database APIs, Schema Migration, and Testing in a Single Java Library

Just like the majority of open-source projects, Celesta emerged as an attempt to solve a practical problem when there were no other adequate tools available. In this case, it was a need to quickly create and deploy large amounts of small Java web applications that work with an RDBMS.

Sure, there are many frameworks and libraries out there to address the issue, but for us, using any of them resulted in expensive and slow development. Maintaining the database migration system and creating an automated testing and deployment system was labor-intensive. Existing approaches suitable for creating big applications turned to be unwieldy when facing a need to mass-produce relatively small services using Spring Boot. We also needed to reuse the code written for different projects, including for different types of RDBMS.



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