Currently, both MVC's ModelAttributeMethodProcessor and WebFlux's ModelAttributeMethodArgumentResolver share similar (though not identical) code for instantiating beans from request parameters:
- MVC's
ModelAttributeMethodProcessor::constructAttribute - WebFlux's
ModelAttributeMethodArgumentResolver::constructAttribute
We should try to refactor this code into something usable from both MVC and WebFlux, and which can also be used from WebMvc.fn and WebFlux.fn in the future.
Comment From: rstoyanchev
DataBinder now provides construct method to create the target object via constructor initialization. Likewise ServletRequestDataBinder and WebExchangeDataBinder provide the same, to bind from an HTTP request to constructor arguments.
Technically a refactoring of existing functionality in the classes referenced in the description, but integrated into the DataBinder hierarchy along with further enhancements for #20806 and #22748.