Input Validation

Validations are applied using two libraries :

1. Business Validation: Checks the business conditions that may need database communication.

2. Input Validation: Checks data entered by User. It does not need database communication. It can be further categorized as

   1. 1. Programmatic or Manual validation: Validation code are written manually by Programmer

• 1. Declarative validation : Validation are declared using XML configuration or Annotations.

Spring supports both kind of Input validations Programmatic and Declarative.