RDFox访问视图

Question

我是否可以使用RDFox版本3设置仅访问知识图的视图？(不进行编辑)

我想要创建不同的用户角色和控制谁可以看到/编辑什么，直到三层。

Answer 1

是的，使用访问控制功能，您可以为用户分配角色和授予权限，例如，您可以将用户权限限制为仅查看。

例如，可以使用角色命令和 create 子命令来创建新用户：

role create user1
Enter the password for the new role:
Confirm the password:    
A new role was created with name "user1".    
role create group   
Enter the password for the new role:    
Confirm the password:    
A new role was created with name "group”.    

然后您可以授予特权，例如：

> grant privileges read,write,grant >datastores|* to user1    
The privileges 'read,write,grant' over resource specifier ">datastores|*" were granted to the role "user1" (if not already present).    

或者您可以撤销特权，例如：


> revoke privileges write,grant >datastores|* from user1    
The privileges 'write,grant' over resource specifier ">datastores|*" were revoked from the role "user1" (if they were present).

如果然后使用show子命令，您可以看到用户具有什么样的角色、和特权：

> role show user1

'user1' has the following directly assigned privileges:

  Resource specifier |  Allowed access types   

  >datastores|*      |  read                   

这导致了用户的只读特权。