How can I exclude/ disallow field in Validator in Spring

Question

I have 2 forms

1. Add Book (addBook.jsp) and It's controller (AddBookController.java)
2. Edit Book(editBook.jsp) and It's controller (EditBookController.java)

Book.java is bean class for both views.

I have same UI for editBook.jsp and addBook.jsp .

I have created org.springframework.validation.Validator ( BookValidator.java ) for add book same Validator can be use for EditBookController.java

But in AddBookController when user is entering Book information user must enter unique bundle number. I have some validations for Unique bundle number on BookValidator .

This validations must not work while user EditBook.

I want to exclude / disallow field for validations while book edit.

I have done

binder.setDisallowedFields(new String[] {"bundleNumber"});

but not helped me.

Please suggest me How i can re use validator ?

Answer 1

It sounds like you need two validators. Perhaps the more specific one can be a subclass of the more general one. The template method pattern may help here with different, overridable methods for each piece of validation.