Morf is a library for cross-platform evolutionary relational database mechanics, database access and database imaging/cloning. It has been developed over many years at Alfa and is used to manage all of our RDBMS-backed applications.

Status

Morf is proven technology and has been used in mission-critical production applications for many years as part of our flagship product. However, as an open source project, it is in an early pre-alpha state, as we go through the process of disentangling it from parts of the rest of our stack, tidying up the code for long-term support, and making it easier and more convenient to use in other projects. Until then, consider the API unstable.

We are maintaining Morf in the open, because we believe this is the right thing to do. Please get involved if you would like to help steer the project.

See the Roadmap for more information.

Getting Started

Documentation is somewhat sparse, not least because the APIs are not quite ready to document. One of the first items on the roadmap is to agree our new user "hello world" user stories, write them up and make sure the necessary APIs are in place to support them.

As we work on those, we will be expanding the Start here part of the Wiki.

Key features

Pure Java API

No XML/JSON/YAML etc
Clean and easy to integrate with existing applications

Evolutionary Database Design

Implements bidirectional run-time verification of upgrades against a known target schema.
Bootstraps empty databases with no additional coding
Manages complex data migration and fixing alongside schema changes
Targets multiple database platforms without platform-specific scripting and without sacrificing low level control
Cleanly integrates disordered branches
Exports SQL upgrade scripts in any SQL dialect for DBA use

Extensible

Easy to add new database platform support

Cross-platform Snapshots and Cloning

Clone or dump a full database, including schema and data
Create a dump of a MySQL database as XML, restore to Oracle
Copy a live PostgreSQL database directly into in-memory H2
Run a JUnit test over an in-memory H2 database using a snapshot from a live Oracle environment
Automatically run missing upgrades after restoring from a snapshot

Database Access API

Database access at run-time using the same DSL used in upgrades

Contributing

If you're interested in contributing to the project, please read the contribution guide.

License

jonknight73/morf

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