Epsilon Transformation Language
ETL is a hybrid, rule-based model-to-model transformation language built on top of EOL. ETL provides all the standard features of a transformation language but also provides enhanced flexibility as it can transform many input to many output models, and can query/navigate/modify both source and target models.
Features
- Transform many input to many output models
- Ability to query/navigate/modify both source and target models
- Declarative rules with imperative bodies
- Automated rule execution
- Lazy and greedy rules
- Multiple rule inheritance
- Guarded rules
Features inherited from EOL
- Support for simultaneously accessing/modifying many models of (potentially) different metamodels
- All the usual programming constructs (while and for loops, statement sequencing, variables etc.)
- Support for those convenient first-order logic OCL operations (select, reject, collect etc.)
- Ability to create and call methods of Java objects
- Support for dynamically attaching operations to existing meta-classes and types at runtime
- Support for cached operations
- Support for extended properties
- Support for user interaction
- Ability to create reusable libraries of operations and import them from different Epsilon (not only EOL) modules