ants.core.security
Class BasicPolicy

java.lang.Object
  |
  +--ants.core.security.Policy
        |
        +--ants.core.security.BasicPolicy

public class BasicPolicy

extends Policy

implements java.io.Serializable

A hashtable-based implementation of a security policy that maps principals to permissions.

Author:

Andrew Whitaker

See Also:

Serialized Form

Constructor Summary

BasicPolicy()
Creates a blank policy

Method Summary

void	addPermission(Principal who, Permission what) Add a permission after first checking for exact duplicates
boolean	hasPermission(Principal who, Permission what) Perform an access control check.
void	removePermission(Principal who, Permission what) Remove a permission from a given principal.
void	removePrincipal(Principal who) Remove all permissions for the given principal

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BasicPolicy

public BasicPolicy()

Creates a blank policy

Method Detail

hasPermission

public boolean hasPermission(Principal who,
                             Permission what)

Perform an access control check. This method uses the implies method of the Permission class, so "read write" implies the "read" permission.

Overrides:

hasPermission in class Policy

See Also:

Permission

addPermission

public void addPermission(Principal who,
                          Permission what)

Add a permission after first checking for exact duplicates

Overrides:

addPermission in class Policy

removePermission

public void removePermission(Principal who,
                             Permission what)

Remove a permission from a given principal. This method uses the equals method of the Permission class, so only exact matches are removed. That is, "read write" does not remove "read"

Overrides:

removePermission in class Policy

removePrincipal

public void removePrincipal(Principal who)

Remove all permissions for the given principal

Overrides:

removePrincipal in class Policy