| java.lang.Object
 java.security.Permission
java.security.BasicPermission
| BasicPermission | | abstract public class BasicPermission extends Permission implements java.io.Serializable(Code) | | The 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.*" are valid, while "*java", "a*b",
and "java*" are not valid.
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.
See Also: java.security.Permission
See Also: java.security.Permissions
See Also: java.security.PermissionCollection
See Also: java.lang.RuntimePermission
See Also: java.security.SecurityPermission
See Also: java.util.PropertyPermission
See Also: java.net.NetPermission
See Also: java.lang.SecurityManager
version:
1.26 00/02/02
author:
Marianne Mueller
author:
Roland Schemers |
| Method Summary | |
| public boolean | equals(Object obj)
Checks two BasicPermission objects for equality.
Checks that obj's class is the same as this object's class
and has the same name as this object.
Parameters:
obj - the object we are testing for equality with this object. | | public String | getActions()
Returns the canonical string representation of the actions,
which currently is the empty string "", since there are no actions for
a BasicPermission. | | public int | hashCode()
Returns the hash code value for this object. | | public boolean | implies(Permission p)
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.
| | public PermissionCollection | newPermissionCollection()
Returns a new PermissionCollection object for storing BasicPermission
objects. |
| BasicPermission | | public BasicPermission(String name)(Code) | | Creates a new BasicPermission 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 the BasicPermission.
throws:
NullPointerException - if name is null.
throws:
IllegalArgumentException - if name is empty. |
| BasicPermission | | public BasicPermission(String name, String actions)(Code) | | Creates a new BasicPermission object with the specified name.
The name is the symbolic name of the BasicPermission, and the
actions String is currently unused.
Parameters:
name - the name of the BasicPermission.
Parameters:
actions - ignored.
throws:
NullPointerException - if name is null.
throws:
IllegalArgumentException - if name is empty. |
| equals | | public boolean equals(Object obj)(Code) | | Checks two BasicPermission objects for equality.
Checks that obj's class is the same as this object's class
and has the same name as this object.
Parameters:
obj - the object we are testing for equality with this object. true if obj is a BasicPermission, and has the same nameas this BasicPermission object, false otherwise. |
| getActions | | public String getActions()(Code) | | Returns the canonical string representation of the actions,
which currently is the empty string "", since there are no actions for
a BasicPermission.
the empty string "". |
| hashCode | | public int hashCode()(Code) | | Returns the hash code value for this object.
The hash code used is the hash code of the name, that is,
getName().hashCode(), where getName is
from the Permission superclass.
a hash code value for this object. |
| implies | | public boolean implies(Permission p)(Code) | | 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".
Parameters:
p - the permission to check against. true if the passed permission is equal to orimplied by this permission, false otherwise. |
| newPermissionCollection | | public PermissionCollection newPermissionCollection()(Code) | | Returns a new PermissionCollection object for storing BasicPermission
objects.
A BasicPermissionCollection stores a collection of
BasicPermission permissions.
BasicPermission objects must be stored in a manner that allows them
to be inserted in any order, but that also enables the
PermissionCollection implies method
to be implemented in an efficient (and consistent) manner.
a new PermissionCollection object suitable forstoring BasicPermissions. |
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