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.
| Method from java.security.acl.AclEntry Detail: |
|---|
 public boolean addPermission(Permission permission)
Adds the specified permission to this ACL entry. Note: An entry can
have multiple permissions. |
public boolean checkPermission(Permission permission) Checks if the specified permission is part of the
permission set in this entry. |
public Object clone() |
public Principal getPrincipal() Returns the principal for which permissions are granted or denied by
this ACL entry. Returns null if there is no principal set for this
entry yet. |
public 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. |
public Enumeration permissions() Returns an enumeration of the permissions in this ACL entry. |
public boolean removePermission(Permission permission) Removes the specified permission from this ACL entry. |
public void setNegativePermissions() Sets this ACL entry to be a negative one. That is, the associated
principal (e.g., a user or a group) will be denied the permission set
specified in the entry.
Note: ACL entries are by default positive. An entry becomes a
negative entry only if this setNegativePermissions
method is called on it. |
public boolean setPrincipal(Principal user) Specifies the principal for which permissions are granted or denied
by this ACL entry. If a principal was already set for this ACL entry,
false is returned, otherwise true is returned. |
public String toString() Returns a string representation of the contents of this ACL entry. |
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