Kartenstapel

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„Code generation is the technique of using or writing programs

that write source code.“

Generation of text from models , whereas text may be distinguished, e.g., in

Program code (source code)

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Documentation

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Test cases

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Deployment scripts

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etc.

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Current execution platforms are mostly code based

Enables separation of (high level) system definition (model) and implementation (

Possible to change the target language without changing the model

Increase maintainability , extensibility, portability to new hardware, operating systems, and platforms

Code generation with model to model transformation languages

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Code generation with programming languages

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Code generation with model to text transformation languages

1. Reusability: M2M transformation allows for the reuse of existing models, which can save time and effort in the development process.

2. Interoperability: M2M transformation can be used to convert a model into a format that can be used by other tools or systems, which can improve the interoperability of the system.

3. Quality assurance: M2M transformation can be used to check the consistency and completeness of a model, which can improve the quality of the system.

4. Abstraction: M2M transformation can be used to change a model from a high-level abstraction to a lower-level abstraction or vice versa. This can make it easier to understand and work with the model.

5. Automation: M2M transformation can be automated, which can make the process more efficient and less error-prone.

6. Model-Driven Development: M2M transformation can be used as part of a Model-Driven Development (MDD) process, which can improve the efficiency and quality of the software development process.

   
   

7. Well formedness of the generated target code can be easily ensured

   
   

8. Well formedness of the target model w.r.t. target language metamodel

can be statically checked

Basic Idea : Transform source model into a target model that can be directly serialized as target language code

M2M (Model-to-Model) transformation -> process that takes a source model (which respresnts a system) -> converts it into a target model.

The target model can be used in a different way or in a different format than the source model.

One of the main goal of M2M is to be able to directly serialize the target model as code in a specific target language.

Metamodels for programming languages are very complex

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Model transformations towards metamodels for programming languages are usually very complex

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Metamodels for programming languages are not always available

Traverse model and produce target text (code) with

String operations

MiniUML to Java code generator realized with Java needed 120 lines of java code are neede to realize mapping

80% less code than with model to model transformation

1. Load models

   • Load XMI file into memory (de serialization)

2. Process models and produce code

   • Process models by traversing the model structure

   • Use model information to produce code

   • Save code into String variable

3. Write code

   • Persist String variable to a file using streams