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Java™ Platform Standard Ed. 6 |
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public interface AclEntry
This is the interface used for representing one entry in an Access Control List (ACL).
An ACL can be thought of as a data structure with multiple ACL entry
objects. Each ACL entry object contains a set of permissions associated
with a particular principal. (A principal represents an entity such as
an individual user or a group). Additionally, each ACL entry is specified
as being either positive or negative. If positive, the permissions are
to be granted to the associated principal. If negative, the permissions
are to be denied. Each principal can have at most one positive ACL entry
and one negative entry; that is, multiple positive or negative ACL
entries are not allowed for any principal.
Note: ACL entries are by default positive. An entry becomes a
negative entry only if the
setNegativePermissions
method is called on it.
Acl
Method Summary | |
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boolean |
addPermission(Permission permission)
Adds the specified permission to this ACL entry. |
boolean |
checkPermission(Permission permission)
Checks if the specified permission is part of the permission set in this entry. |
Object |
clone()
Clones this ACL entry. |
Principal |
getPrincipal()
Returns the principal for which permissions are granted or denied by this ACL entry. |
boolean |
isNegative()
Returns true if this is a negative ACL entry (one denying the associated principal the set of permissions in the entry), false otherwise. |
Enumeration<Permission> |
permissions()
Returns an enumeration of the permissions in this ACL entry. |
boolean |
removePermission(Permission permission)
Removes the specified permission from this ACL entry. |
void |
setNegativePermissions()
Sets this ACL entry to be a negative one. |
boolean |
setPrincipal(Principal user)
Specifies the principal for which permissions are granted or denied by this ACL entry. |
String |
toString()
Returns a string representation of the contents of this ACL entry. |
Method Detail |
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boolean setPrincipal(Principal user)
user
- the principal to be set for this entry.
getPrincipal()
Principal getPrincipal()
setPrincipal(java.security.Principal)
void setNegativePermissions()
setNegativePermissions
method is called on it.
boolean isNegative()
boolean addPermission(Permission permission)
permission
- the permission to be associated with
the principal in this entry.
boolean removePermission(Permission permission)
permission
- the permission to be removed from this entry.
boolean checkPermission(Permission permission)
permission
- the permission to be checked for.
Enumeration<Permission> permissions()
String toString()
toString
in class Object
Object clone()
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Java™ Platform Standard Ed. 6 |
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