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Added in API level 1

Summary: Methods | [Expand All]

public interface Owner

java.security.acl.Owner

Known Indirect Subclasses

Acl

用于管理访问控制列表（ACL）或ACL配置所有者的接口。（请注意， java.security.acl包中的Acl接口扩展了此Owner接口。）应将初始所有者Principal指定为实现此接口的类的构造函数的参数。

也可以看看：

Public methods
`abstract boolean`	`addOwner(Principal caller, Principal owner)` 添加一个所有者。
`abstract boolean`	`deleteOwner(Principal caller, Principal owner)` 删除所有者。
`abstract boolean`	`isOwner(Principal owner)` 如果给定主体是ACL的所有者，则返回true。

Added in API level 1

boolean addOwner (Principal caller, 
                Principal owner)

添加一个所有者。只有所有者可以修改ACL内容。调用者主体必须是ACL的所有者才能调用此方法。也就是说，只有所有者才能添加其他所有者。最初的所有者在ACL构建时配置。

Parameters
`caller`	`Principal`: the principal invoking this method. It must be an owner of the ACL.
`owner`	`Principal`: the owner that should be added to the list of owners.

Returns
`boolean`	true if successful, false if owner is already an owner.

Throws
`NotOwnerException`	if the caller principal is not an owner of the ACL.

Added in API level 1

boolean deleteOwner (Principal caller, 
                Principal owner)

删除所有者。如果这是ACL中的最后一个所有者，则会引发异常。

调用者主体必须是ACL的所有者才能调用此方法。

Parameters
`caller`	`Principal`: the principal invoking this method. It must be an owner of the ACL.
`owner`	`Principal`: the owner to be removed from the list of owners.

Returns
`boolean`	true if the owner is removed, false if the owner is not part of the list of owners.

Throws
`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.

Added in API level 1

boolean isOwner (Principal owner)

如果给定主体是ACL的所有者，则返回true。

Parameters
`owner`	`Principal`: the principal to be checked to determine whether or not it is an owner.

Returns
`boolean`	true if the passed principal is in the list of owners, false if not.