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Java Standard Edition (SE)

UserPrincipal


compact1, compact2, compact3
java.nio.file.attribute

Interface UserPrincipal

  • All Superinterfaces:
    Principal
    All Known Subinterfaces:
    GroupPrincipal


    public interface UserPrincipal
    extends Principal
    A Principal representing an identity used to determine access rights to objects in a file system.

    On many platforms and file systems an entity requires appropriate access rights or permissions in order to access objects in a file system. The access rights are generally performed by checking the identity of the entity. For example, on implementations that use Access Control Lists (ACLs) to enforce privilege separation then a file in the file system may have an associated ACL that determines the access rights of identities specified in the ACL.

    A UserPrincipal object is an abstract representation of an identity. It has a name that is typically the username or account name that it represents. User principal objects may be obtained using a UserPrincipalLookupService, or returned by FileAttributeView implementations that provide access to identity related attributes. For example, the AclFileAttributeView and PosixFileAttributeView provide access to a file's owner.

    Since:
    1.7


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