Ch13: Model Validation

Question 1

Define validation

Answer 1

Process of checking data conforms to criteria to insure only meaningful data is stored

Question 2

Client-side or Server-side: Validation occurring in browser using JavaScript or HTML

Answer 2

Client-side Validation

Question 3

Client-side or Server-side: Validation occurring on web server, utilizing Java

Answer 3

Server-side Validation

Question 4

The ____ is responsible for defining validation rules, while the ____ is responsible for checking validation rules when data is submitted to the server

Answer 4

Model, controller

Question 5

Why should you validate all data submitted by users?

Answer 5

• Data remains well structured

- Avoid unexpected errors

Question 6

Is both client-side and server-side validation required?

Answer 6

Yes, client-side validation can be bypassed

Question 7

Use of javax.validation.constraints package?

Answer 7

Provides annotations useful for validating model fields

Question 8

Annotation that specifies minimum and/or maximum length for a string.

Answer 8

@Size

Question 9

Annotation that specifies the minimum value of a numeric field

Answer 9

@Min

Question 10

Annotation that specifies the max value of a numeric field

Answer 10

@Max

Question 11

Annotation that specifies that a string field should conform to email formatting standards.

Answer 11

@Email

Question 12

Annotation that specifies that a field may not be null.

Answer 12

@NotNull

Question 13

Annotation that specifies that a string field contains at least one non-whitespace character.

Answer 13

@NotBlank