Introducing Java EE 7 by Josh Juneau

Author:Josh Juneau
Format: epub
Publisher: Apress

@Size(min=8, groups=Authentication.class)

private String username;

@Size(min=8, groups=Authentication.class)

@Pattern(regexp="^[a-zA-Z\\d_]{4,12}$")

private String password;

@NotNull

private String firstname;

@NotNull

private String lastname;

@NotNull()

private String email;

...

}

It is possible to specify more than one group for a constraint annotation by denoting a list of values for the groups attribute. For instance, if the username field needed to also belong to the Authentication2 group, then it could be registered to both groups using the following notation:

@Size(min=8, groups={Authentication.class, Authentication2.class})

private String username;

Note The Default.class group is created automatically, and any validation constraint that does not have a group specified will belong to the Default group.

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