Spring Data - ignore parameter if it has a null value

Question

I want to have a spring data repository interface that takes two parameters. Is there a way to make it have the following behaviour?

MyObject findByParameter         


        

Answer 1

I am new in Spring/JPA space,

use 'Query By Example'

i am using (in seviceImp) , all below arguments are optional/ depends on user choice

`
  .
    if (!firstName.isEmpty() ) {
    staff.setFirstName(firstName);
    }



    if (!lastName.isEmpty() ) {
    staff.setLastName(lastName);
    }

    if (!ptAadhar.isEmpty() ) {
        patient.setPtAadhar(ptAadhar);
    }

    if (!Cell.isEmpty() ) {
        staff.setCell(Cell);
    }


      Example example = Example.of(staff);  

      List staffList =staffRepository.findAll(example);
       .