public interface Owner
Interface for managing owners of Access Control Lists (ACLs) or ACL configurations. (Note that the Acl interface in the java.security.acl
package extends this Owner interface.) The initial owner Principal should be specified as an argument to the constructor of the class implementing this interface.
Acl
boolean addOwner(Principal caller, Principal owner) throws NotOwnerException
Adds an owner. Only owners can modify ACL contents. The caller principal must be an owner of the ACL in order to invoke this method. That is, only an owner can add another owner. The initial owner is configured at ACL construction time.
caller
- the principal invoking this method. It must be an owner of the ACL.owner
- the owner that should be added to the list of owners.NotOwnerException
- if the caller principal is not an owner of the ACL.boolean deleteOwner(Principal caller, Principal owner) throws NotOwnerException, LastOwnerException
Deletes an owner. If this is the last owner in the ACL, an exception is raised.
The caller principal must be an owner of the ACL in order to invoke this method.
caller
- the principal invoking this method. It must be an owner of the ACL.owner
- the owner to be removed from the list of owners.NotOwnerException
- if the caller principal is not an owner of the ACL.LastOwnerException
- if there is only one owner left, so that deleteOwner would leave the ACL owner-less.boolean isOwner(Principal owner)
Returns true if the given principal is an owner of the ACL.
owner
- the principal to be checked to determine whether or not it is an owner.
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