PkgAgentSystem
Class PermissionsHash

java.lang.Object
  |
  +--java.security.PermissionCollection
        |
        +--PkgAgentSystem.PermissionsHash

All Implemented Interfaces:

Serializable

final class PermissionsHash

extends PermissionCollection

implements Serializable

A PermissionsHash stores a homogeneous set of permissions in a hashtable.

Version:

1.37, 98/12/01

Author:

Roland Schemers

See Also:

Permission, Permissions, Serialized Form

Constructor Summary

(package private)

PermissionsHash() Create an empty PermissionsHash object.

Method Summary

void	add(Permission permission) Adds a permission to the PermissionsHash.
Enumeration	elements() Returns an enumeration of all the Permission objects in the container.
boolean	implies(Permission permission) Check and see if this set of permissions implies the permissions expressed in "permission".
void	remove(Permission permission) Removes a permission from the PermissionsHash.

Methods inherited from class java.security.PermissionCollection

isReadOnly, setReadOnly, toString

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

PermissionsHash

PermissionsHash()

Create an empty PermissionsHash object.

Method Detail

add

public void add(Permission permission)

Adds a permission to the PermissionsHash.

Overrides:

add in class PermissionCollection

Parameters:

permission - the Permission object to add.

remove

public void remove(Permission permission)

Removes a permission from the PermissionsHash.

Parameters:

permission - the Permission object to remove.

implies

public boolean implies(Permission permission)

Check and see if this set of permissions implies the permissions expressed in "permission".

Overrides:

implies in class PermissionCollection

Parameters:

permission - the Permission object to compare

Returns:

true if "permission" is a proper subset of a permission in the set, false if not.

elements

public Enumeration elements()

Returns an enumeration of all the Permission objects in the container.

Overrides:

elements in class PermissionCollection

Returns:

an enumeration of all the Permissions.