public final class BundlePermission
extends java.security.BasicPermission
A bundle symbolic name defines a unique fully qualified name. Wildcards may be used.
name ::= <symbolic name> | <symbolic name ending in ".*"> | *Examples:
org.osgi.example.bundle org.osgi.example.* *
BundlePermission
has four actions: provide
, require
,
host
, and fragment
. The provide
action implies the
require
action.
限定符和类型 | 字段和说明 |
---|---|
static java.lang.String |
FRAGMENT
The action string
fragment . |
static java.lang.String |
HOST
The action string
host . |
static java.lang.String |
PROVIDE
The action string
provide . |
static java.lang.String |
REQUIRE
The action string
require . |
构造器和说明 |
---|
BundlePermission(java.lang.String symbolicName,
java.lang.String actions)
Defines the authority to provide and/or require and or specify a host
fragment symbolic name within the OSGi environment.
|
限定符和类型 | 方法和说明 |
---|---|
boolean |
equals(java.lang.Object obj)
Determines the equality of two
BundlePermission objects. |
java.lang.String |
getActions()
Returns the canonical string representation of the
BundlePermission actions. |
int |
hashCode()
Returns the hash code value for this object.
|
boolean |
implies(java.security.Permission p)
Determines if the specified permission is implied by this object.
|
java.security.PermissionCollection |
newPermissionCollection()
Returns a new
PermissionCollection object suitable for storing
BundlePermission objects. |
public static final java.lang.String PROVIDE
provide
. The provide
action implies the
require
action.public static final java.lang.String REQUIRE
require
. The require
action is implied
by the provide
action.public static final java.lang.String HOST
host
.public static final java.lang.String FRAGMENT
fragment
.public BundlePermission(java.lang.String symbolicName, java.lang.String actions)
Bundle Permissions are granted over all possible versions of a bundle.
A bundle that needs to provide a bundle must have the appropriate
BundlePermission
for the symbolic name; a bundle that requires a
bundle must have the appropriate BundlePermssion
for that
symbolic name; a bundle that specifies a fragment host must have the
appropriate BundlePermission
for that symbolic name.
symbolicName
- The bundle symbolic name.actions
- provide
,require
, host
,
fragment
(canonical order).public boolean implies(java.security.Permission p)
This method checks that the symbolic name of the target is implied by the
symbolic name of this object. The list of BundlePermission
actions must either match or allow for the list of the target object to
imply the target BundlePermission
action.
The permission to provide a bundle implies the permission to require the named symbolic name.
x.y.*,"provide" -> x.y.z,"provide" is true *,"require" -> x.y, "require" is true *,"provide" -> x.y, "require" is true x.y,"provide" -> x.y.z, "provide" is false
implies
在类中 java.security.BasicPermission
p
- The requested permission.true
if the specified BundlePermission
action is
implied by this object; false
otherwise.public java.lang.String getActions()
BundlePermission
actions.
Always returns present BundlePermission
actions in the following
order: provide
, require
, host
, fragment
.
getActions
在类中 java.security.BasicPermission
BundlePermission
actions.public java.security.PermissionCollection newPermissionCollection()
PermissionCollection
object suitable for storing
BundlePermission
objects.newPermissionCollection
在类中 java.security.BasicPermission
PermissionCollection
object.public boolean equals(java.lang.Object obj)
BundlePermission
objects.
This method checks that specified bundle has the same bundle symbolic
name and BundlePermission
actions as this
BundlePermission
object.equals
在类中 java.security.BasicPermission
obj
- The object to test for equality with this
BundlePermission
object.true
if obj
is a BundlePermission
, and
has the same bundle symbolic name and actions as this
BundlePermission
object; false
otherwise.public int hashCode()
hashCode
在类中 java.security.BasicPermission