Dynamically update model in java odata service

I'm currently working on java based odata service. as of now in the model layer the fields which are present in the table are hard coded with respective getters and setters.

Everything works fine as of now (typical odata service). the issue is the under lying table schema changes frequently . Is there any way to dynamically bind those fields in the model. instead of everytime changing the underlying model?

Any references or examples to it is appreciated