spring - Different validation process for JPA saving and form validation with same entity class -

i have user entity class mapped table in database. in class, there password field like:

@data @entity @table(name = "users", schema = "...") public class userentity {      ...      @column(name = "password", nullable = false, length = 64)     @notnull     @size(min = 8, max = 64)     private string password;      ... } 

this class represents user in whole project source codes.

but problem registration process:

1. client passes password in registration form
2. controller validates user password @valid
3. service encodes password encrypt algorithm.
4. service tries save user calling repository's save()
5. then before saving database, validation occurs again
6. user saved database

there 2 validation process, form validation , entity validation.

but should have different validation strategies.

i've implemented 2 different validators related constraint annotations.

what simple way make so?

hibernate validation (ri bean validation) allow validation groups

the example below validate fields in car object

userentity user = ... set<constraintviolation<car>> constraintviolations = validator.validate(user); 

but, if want validate fields in first step , other fields in second step? here validation groups enter in action

constraintviolations = validator.validate(user, step1.class);  constraintviolations = validator.validate(user, step2.class); 

now, userentity should modified

@column(name = "password", nullable = false, length = 64) @notnull(groups = step1.class) @size(min = 8, max = 64, groups = step2.class) private string password; 

so, in first step, password validated not null meanwhile in step 2 validation size's minimum 8 , maximum 64.