org.apache.iotdb.db.auth.user

接口 IUserAccessor

所有已知实现类:

LocalFileUserAccessor

public interface IUserAccessor

This interface manages the serialization/deserialization of the user objects.

方法概要

限定符和类型	方法和说明
boolean	deleteUser(String username) Delete a user's from lower storage.
List<String>	listAllUsers() List all users existing in the database.
User	loadUser(String username) Deserialize a user from lower storage.
void	reset() Re-initialize this object.
void	saveUser(User user) Serialize the user object to lower storage.

方法详细资料

loadUser

User loadUser(String username)
       throws IOException

Deserialize a user from lower storage.

参数:

username - The name of the user to be deserialized.

返回:

The user object or null if no such user.

抛出:

IOException - if an exception is raised when interacting with the lower storage.

saveUser

void saveUser(User user)
       throws IOException

Serialize the user object to lower storage.

参数:

user - The user object that is to be saved.

抛出:

IOException - if an exception is raised when interacting with the lower storage.

deleteUser

boolean deleteUser(String username)
            throws IOException

Delete a user's from lower storage.

参数:

username - The name of the user to be deleted.

返回:

True if the user is successfully deleted, false if the user does not exists.

抛出:

IOException - if an exception is raised when interacting with the lower storage.

listAllUsers

List<String> listAllUsers()

List all users existing in the database.

返回:

A list that contains names of all users.

reset

void reset()

Re-initialize this object.