Saturday, 15 May 2010

collections - JPA How to filter ManyToMany relationship -


I try to learn how to filter this relationship:

  EntityA {@ManyToMany Collections (target entities = roll.class) collection & lt; Role & gt; role; } Users {@ManyToMany (target = role.class) collection & lt; Role & gt; role; }  

What I try to achieve is something like RBAC. Entity should be accessible from some (multiple) roles. A user also has fixed (multiple) roles.

How can I return only the Entity Rows for a specific user? All EntityA rows which mean that there are equal roles in the form of a user?

It means only two collections (the role of Antitaya which plays a role from the user) Is it possible that a prediction?


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