Class BasicPermission
- All Implemented Interfaces:
Serializable
,Guard
- Direct Known Subclasses:
AudioPermission
,AuthPermission
,AWTPermission
,DelegationPermission
,LinkPermission
,LoggingPermission
,ManagementPermission
,MBeanServerPermission
,MBeanTrustPermission
,NetPermission
,PropertyPermission
,ReflectPermission
,RuntimePermission
,SecurityPermission
,SerializablePermission
,SQLPermission
,SSLPermission
,SubjectDelegationPermission
BasicPermission
class extends the Permission
class, and
can be used as the base class for permissions that want to
follow the same naming convention as BasicPermission
.
The name for a BasicPermission
is the name of the given permission
(for example, "exit",
"setFactory", "print.queueJob", etc.). The naming
convention follows the hierarchical property naming convention.
An asterisk may appear by itself, or if immediately preceded by a "."
may appear at the end of the name, to signify a wildcard match.
For example, "*" and "java.*" signify a wildcard match, while "*java", "a*b",
and "java*" do not.
The action string (inherited from Permission
) is unused.
Thus, BasicPermission
is commonly used as the base class for
"named" permissions
(ones that contain a name but no actions list; you either have the
named permission or you don't.)
Subclasses may implement actions on top of BasicPermission
,
if desired.
- Since:
- 1.2
- See Also:
-
Constructor Summary
ConstructorDescriptionBasicPermission
(String name) Creates a newBasicPermission
with the specified name.BasicPermission
(String name, String actions) Creates a newBasicPermission
object with the specified name. -
Method Summary
Modifier and TypeMethodDescriptionboolean
Checks twoBasicPermission
objects for equality.Returns the canonical string representation of the actions, which currently is the empty string "", since there are no actions for aBasicPermission
.int
hashCode()
Returns the hash code value for this object.boolean
Checks if the specified permission is "implied" by this object.Returns a newPermissionCollection
object for storingBasicPermission
objects.Methods inherited from class java.security.Permission
checkGuard, getName, toString
-
Constructor Details
-
BasicPermission
Creates a newBasicPermission
with the specified name. Name is the symbolic name of the permission, such as "setFactory", "print.queueJob", or "topLevelWindow", etc.- Parameters:
name
- the name of theBasicPermission
.- Throws:
NullPointerException
- ifname
isnull
.IllegalArgumentException
- ifname
is empty.
-
BasicPermission
Creates a newBasicPermission
object with the specified name. The name is the symbolic name of theBasicPermission
, and the actionsString
is currently unused.- Parameters:
name
- the name of theBasicPermission
.actions
- ignored.- Throws:
NullPointerException
- ifname
isnull
.IllegalArgumentException
- ifname
is empty.
-
-
Method Details
-
implies
Checks if the specified permission is "implied" by this object.More specifically, this method returns
true
if:-
p
's class is the same as this object's class, and -
p
's name equals or (in the case of wildcards) is implied by this object's name. For example, "a.b.*" implies "a.b.c".
- Specified by:
implies
in classPermission
- Parameters:
p
- the permission to check against.- Returns:
true
if the passed permission is equal to or implied by this permission,false
otherwise.
-
-
equals
Checks twoBasicPermission
objects for equality. Checks thatobj
's class is the same as this object's class and has the same name as this object.- Specified by:
equals
in classPermission
- Parameters:
obj
- the object we are testing for equality with this object.- Returns:
true
ifobj
's class is the same as this object's class and has the same name as thisBasicPermission
object,false
otherwise.- See Also:
-
hashCode
public int hashCode()Returns the hash code value for this object. The hash code used is the hash code of the name, that is,getName().hashCode()
, wheregetName
is from thePermission
superclass.- Specified by:
hashCode
in classPermission
- Returns:
- the hash code value for this object
- See Also:
-
getActions
Returns the canonical string representation of the actions, which currently is the empty string "", since there are no actions for aBasicPermission
.- Specified by:
getActions
in classPermission
- Returns:
- the empty string "".
-
newPermissionCollection
Returns a newPermissionCollection
object for storingBasicPermission
objects.BasicPermission
objects must be stored in a manner that allows them to be inserted in any order, but that also enables thePermissionCollection.implies(java.security.Permission)
method to be implemented in an efficient (and consistent) manner.- Overrides:
newPermissionCollection
in classPermission
- Returns:
- a new
PermissionCollection
object suitable for storingBasicPermission
objects.
-