custom code generation

[setop]

Hi,

I searched for a similar discussion without match. Please excuse me if it's a duplicate.

I'm trying to generate custom code, out of pydantic. I first attempted to generate java pojo.

I've gone through the doc. I managed to use $ datamodel-codegen --input {your_input_file} --output {your_output_file} --custom-template-dir {your_custom_template_directory}.

But it seems to lack some flexibility :

• the structure of the template folder is hardcoded and a consequence of the limited list of model types : --output-model-type {pydantic.BaseModel,pydantic_v2.BaseModel,dataclasses.dataclass,typing.TypedDict,msgspec.Struct}.
• the header of the document - list of imports - can not be changed (and seems to depends on the "model type").
• it is not possible to generate one file per class, only one file containing all class

Is there a way to generate code out of python+pydantic ?

Cheers

[koxudaxi]

Thank you for your feedback!

Currently, this tool is fundamentally designed with Python output in mind, so supporting non-Python languages like Java would be challenging with the existing architecture. The import system, formatters, and template structure are all Python-specific.

That said, we have received similar requests before, such as generating Swift code. If there is enough demand for multi-language support, we would consider implementing features to accommodate other languages.

If you have any thoughts, ideas, or use cases, please feel free to share them in the comments. Your feedback helps us prioritize future development.

Thanks again!