ajanta.util
Class OwnerImpl

java.lang.Object
  |
  +--ajanta.util.OwnerImpl

All Implemented Interfaces:

java.security.acl.Owner

public class OwnerImpl

extends java.lang.Object

implements java.security.acl.Owner

OwnerImpl implements java.security.acl.Owner

See Also:

Owner

Constructor Summary

OwnerImpl()
Constructs OwnerImpl object

OwnerImpl(java.security.Principal owner)
Constructs OwnerImpl object

Method Summary

boolean	addOwner(java.security.Principal caller, java.security.Principal owner) Adds an owner.
boolean	deleteOwner(java.security.Principal caller, java.security.Principal owner) Deletes an owner.
boolean	isOwner(java.security.Principal owner) Returns true if the given principal is an owner of the ACL.

Methods inherited from class java.lang.Object

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

Constructor Detail

OwnerImpl

public OwnerImpl()

Constructs OwnerImpl object

OwnerImpl

public OwnerImpl(java.security.Principal owner)

Constructs OwnerImpl object

Method Detail

addOwner

public boolean addOwner(java.security.Principal caller,
                        java.security.Principal owner)
                 throws java.security.acl.NotOwnerException

Adds an owner. Only owners can modify ACL contents. The caller principal must be an owner of the ACL in order to invoke this method. That is, only an owner can add another owner. The initial owner is configured at ACL construction time.

Specified by:

addOwner in interface java.security.acl.Owner

Parameters:

caller - - the principal invoking this method. It must be an owner of the ACL.

owner - - the owner that should be added to the list of owners.

Returns:

true if successful, false if owner is already an owner.

java.security.acl.NotOwnerException

deleteOwner

public boolean deleteOwner(java.security.Principal caller,
                           java.security.Principal owner)
                    throws java.security.acl.NotOwnerException,
                           java.security.acl.LastOwnerException

Deletes an owner. If this is the last owner in the ACL, an exception is raised. The caller principal must be an owner of the ACL in order to invoke this method.

Specified by:

deleteOwner in interface java.security.acl.Owner

Parameters:

caller - - the principal invoking this method. It must be an owner of the ACL.

owner - - the owner to be removed from the list of owners.

Returns:

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

java.security.acl.NotOwnerException

java.security.acl.LastOwnerException

isOwner

public boolean isOwner(java.security.Principal owner)

Returns true if the given principal is an owner of the ACL.

Specified by:

isOwner in interface java.security.acl.Owner

Parameters:

owner - - the principal to be checked to determine whether or not it is an owner.

Returns:

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