org.apache.iotdb.db.auth.role

类 LocalFileRoleAccessor

java.lang.Object

org.apache.iotdb.db.auth.role.LocalFileRoleAccessor

所有已实现的接口:

IRoleAccessor

public class LocalFileRoleAccessor
extends Object
implements IRoleAccessor

This class store each role in a separate sequential file. Role file schema : Int32 role name size Utf-8 role name bytes Int32 seriesPath privilege number n Int32 seriesPath[1] size Utf-8 seriesPath[1] bytes Int32 privilege num k1 Int32 privilege[1][1] Int32 privilege[1][2] ... Int32 privilege[1][k1] Int32 seriesPath[2] size Utf-8 seriesPath[2] bytes Int32 privilege num yk2 Int32 privilege[2][1] Int32 privilege[2][2] ... Int32 privilege[2][k2] ... Int32 seriesPath[n] size Utf-8 seriesPath[n] bytes Int32 privilege num kn Int32 privilege[n][1] Int32 privilege[n][2] ... Int32 privilege[n][kn]

构造器概要

构造器

构造器和说明
LocalFileRoleAccessor(String roleDirPath)

方法概要

限定符和类型	方法和说明
boolean	deleteRole(String rolename) Delete a role's in lower storage.
List<String>	listAllRoles() List all roles in this database.
Role	loadRole(String rolename) Deserialize a role from lower storage.
void	reset() Re-initialize this object.
void	saveRole(Role role) Serialize the role object to lower storage.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

LocalFileRoleAccessor

public LocalFileRoleAccessor(String roleDirPath)

方法详细资料

loadRole

public Role loadRole(String rolename)
              throws IOException

从接口复制的说明: IRoleAccessor

Deserialize a role from lower storage.

指定者:

loadRole 在接口中 IRoleAccessor

参数:

rolename - The name of the role to be deserialized.

返回:

The role object or null if no such role.

抛出:

IOException - if IOException is raised when interacting with lower storage.

saveRole

public void saveRole(Role role)
              throws IOException

从接口复制的说明: IRoleAccessor

Serialize the role object to lower storage.

指定者:

saveRole 在接口中 IRoleAccessor

参数:

role - The role object that is to be saved.

抛出:

IOException - if IOException is raised when interacting with lower storage.

deleteRole

public boolean deleteRole(String rolename)
                   throws IOException

从接口复制的说明: IRoleAccessor

Delete a role's in lower storage.

指定者:

deleteRole 在接口中 IRoleAccessor

参数:

rolename - The name of the role to be deleted.

返回:

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

抛出:

IOException - if IOException is raised when interacting with lower storage.

listAllRoles

public List<String> listAllRoles()

从接口复制的说明: IRoleAccessor

List all roles in this database.

指定者:

listAllRoles 在接口中 IRoleAccessor

返回:

A list contains all names of the roles.

reset

public void reset()

从接口复制的说明: IRoleAccessor

Re-initialize this object.

指定者:

reset 在接口中 IRoleAccessor