retrieves a single role for a given rolename principal . the security service may optionally check the current user context to determine if the requestor has permission to perform this action . concode_field_sep String SERVICE_NAME concode_field_sep void removeRole concode_elem_sep void revokeRole concode_elem_sep void revokeRole concode_elem_sep void saveRole concode_elem_sep boolean hasRole concode_elem_sep boolean hasRole concode_elem_sep void grantRole concode_elem_sep void grantRole concode_elem_sep RoleManagement getService concode_elem_sep void addRole concode_elem_sep Iterator getRoles concode_elem_sep Iterator getRoles
Role function ( String arg0 ) { return getService ( ) . getRole ( arg0 ) ; }