org.entityfs.util.security
Class XorAccessGranter

java.lang.Object
  org.entityfs.util.security.XorAccessGranter

All Implemented Interfaces:

AccessGranter

public class XorAccessGranter
extends Object
implements AccessGranter

This is an AccessGranter that combines the decisions from two other access granters using the logical operation XOR.

Instances of this class are immutable (but their wrapped access granters might no be).

Since:

1.0

Author:

Karl Gustafsson

Constructor Summary

XorAccessGranter(AccessGranter granter1, AccessGranter granter2)
Create a XOR access granter using the two provided access granters.

Method Summary

boolean

hasAccess(Subject s, Permission p) Is the subject authorized for the permission?

Methods inherited from class java.lang.Object

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

Constructor Detail

XorAccessGranter

public XorAccessGranter(AccessGranter granter1,
                        AccessGranter granter2)

Create a XOR access granter using the two provided access granters.

Parameters:

granter1 - The first access granter. If this is null, it is considered to always return true (in effect reversing the decisions from the second access granter).

granter2 - The second access granter. If this is null, it is considered to always return true (in effect reversing the decisions from the first access granter).

Method Detail

hasAccess

public boolean hasAccess(Subject s,
                         Permission p)

Description copied from interface: AccessGranter

Is the subject authorized for the permission?

Specified by:

hasAccess in interface AccessGranter

Parameters:

s - The subject. Might be null.

p - The permission.

Returns:

true if the subject is authorized for the permission, false if not.