ej.ecom

Class DeviceManagerPermission<D>

java.lang.Object

java.security.Permission

ej.ecom.DeviceManagerPermission<D>

All Implemented Interfaces:

Serializable, Guard

public class DeviceManagerPermission<D>
extends Permission

This class represents access to DeviceManager.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	MODIFY The MODIFY permission is required to be able to modify the registry.
static String	READ The READ permission is required to access to registered devices.

Constructor Summary

Constructors

Constructor and Description
DeviceManagerPermission(String name, Class<D> deviceClass) Create a DeviceManager permission with

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Checks two Permission objects for equality.
String	getActions() Returns the actions as a String.
Class<D>	getDeviceClass()
int	hashCode() Returns the hash code value for this Permission object.
boolean	implies(Permission permission) Checks if the specified permission's actions are "implied by" this object's actions.

Methods inherited from class java.security.Permission

getName, toString

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Field Detail

MODIFY

public static final String MODIFY

The MODIFY permission is required to be able to modify the registry.

See Also:

Constant Field Values

READ

public static final String READ

The READ permission is required to access to registered devices.

See Also:

Constant Field Values

Constructor Detail

DeviceManagerPermission

public DeviceManagerPermission(String name,
                               Class<D> deviceClass)

Create a DeviceManager permission with

Parameters:

name - either READ or MODIFY permission name

deviceClass - the device class on which the permission is applied

Method Detail

equals

public boolean equals(Object obj)

Description copied from class: Permission

Checks two Permission objects for equality.

Do not use the equals method for making access control decisions; use the implies method.

Specified by:

equals in class Permission

Parameters:

obj - the object we are testing for equality with this object.

Returns:

true if both Permission objects are equivalent.

See Also:

Object.hashCode(), HashMap

getActions

public String getActions()

Description copied from class: Permission

Returns the actions as a String. This is abstract so subclasses can defer creating a String representation until one is needed. Subclasses should always return actions in what they consider to be their canonical form. For example, two FilePermission objects created via the following:

 perm1 = new FilePermission(p1, "read,write");
 perm2 = new FilePermission(p2, "write,read");
 

both return "read,write" when the getActions method is invoked.

Specified by:

getActions in class Permission

Returns:

the actions of this Permission.

getDeviceClass

public Class<D> getDeviceClass()

Returns:

the device class on which this permission is required

hashCode

public int hashCode()

Description copied from class: Permission

Returns the hash code value for this Permission object.

The required hashCode behavior for Permission Objects is the following:

• Whenever it is invoked on the same Permission object more than once during an execution of a Java application, the hashCode method must consistently return the same integer. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two Permission objects are equal according to the equals method, then calling the hashCode method on each of the two Permission objects must produce the same integer result.

Specified by:

hashCode in class Permission

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

implies

public boolean implies(Permission permission)

Description copied from class: Permission

Checks if the specified permission's actions are "implied by" this object's actions.

This must be implemented by subclasses of Permission, as they are the only ones that can impose semantics on a Permission object.

Specified by:

implies in class Permission

Parameters:

permission - the permission to check against.

Returns:

true if the specified permission is implied by this object, false if not.