Validator

Validator allows a set of validation parameters to be lazily configured and then executed against a target to be validated. Errors can either be accumulated or validation can fail on error.

Accumulate

ValidationResults results  = CumulativeValidator.of((User user)->user.age>18, "too young", "age ok")
												.isValid(user->user.email!=null, "user email null","email ok")
												.accumulate(new User(10,"email@email.com"));
	
		assertThat(results.getResults().size(),equalTo(2));

Accumulate until fail

	ValidationResults<String,String> results  = CumulativeValidator.of((User user)->user.age>18, "too young", "age ok")
												.add(Validator.of((User user)->user.email!=null, "user email null","email ok"))
												.accumulateUntilFail(new User(10,"email@email.com"));
	
		assertThat(results.getResults().size(),equalTo(1));