AND/OR mode for @Pattern constraint

[mkurz]

Fully backwards compatible.

Allows us to to write awesome stuff like:

// subject needs to have both permissions
@Pattern(value = { "curator.museum.insects", "killer.undead.zombie" }, mode = AND)

// subject needs to have one of these permissions
@Pattern(value = { "curator.museum.insects", "killer.undead.zombie" }, mode = OR)

Together with the deadbolt.java.constraint-mode setting this is really useful. E.g. you could set deadbolt.java.constraint-mode = AND, annotate the controller with @Restrict(...) to only allow certain roles and on the method you can then require that this role has x or y permission to access that action method. Nice.

[eximius313]

Wouldn't be a problem if somebody was already using ConstraintMode from here: #87 ?

[mkurz]

That's ok, they are two different things. One is for global mode and one for the Pattern. Unfortunately we can't re-use because they have different values.