net.jini.discovery

Class DiscoveryPermission

java.lang.Object

java.security.Permission

net.jini.discovery.DiscoveryPermission

All Implemented Interfaces:

Serializable, Guard

public final class DiscoveryPermission
extends Permission
implements Serializable

Permission for using LookupDiscovery. The permission contains a name but no actions list. The name is a discovery group name. The empty string represents the "public" group (as usual). The name "*" represents all groups. The name can start with "*." to signify a prefix wildcard match; in this case, group names are assumed to be in dotted domain name style (e.g., "*.sun.com").

Note that, due to limitations of the Java(TM) platform security model, permission must be granted not only to the code that calls LookupDiscovery, but also to LookupDiscovery itself.

Author:

Sun Microsystems, Inc.

See Also:

LookupDiscovery, Serialized Form

Constructor Summary

Constructors

Constructor and Description
DiscoveryPermission(String group) Simple constructor.
DiscoveryPermission(String group, String action) Simple constructor.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Two instances are equal if they have the same name.
String	getActions() Always returns the empty string; this permission type has no actions list.
int	hashCode()
boolean	implies(Permission p) Returns true if the name of this permission (the one on which the method is invoked) is the same as the name of the permission parameter, or if the name of this permission starts with '*' and the remainder (after the '*') is a suffix of the name of the permission parameter.
PermissionCollection	newPermissionCollection()

Methods inherited from class java.security.Permission

checkGuard, getName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DiscoveryPermission

public DiscoveryPermission(String group)

Simple constructor.

Parameters:

group - the group name (wildcard permitted)

DiscoveryPermission

public DiscoveryPermission(String group,
                           String action)

Simple constructor.

Parameters:

group - the group name (wildcard permitted)

action - ignored

Method Detail

implies

public boolean implies(Permission p)

Returns true if the name of this permission (the one on which the method is invoked) is the same as the name of the permission parameter, or if the name of this permission starts with '*' and the remainder (after the '*') is a suffix of the name of the permission parameter.

Specified by:

implies in class Permission

equals

public boolean equals(Object obj)

Two instances are equal if they have the same name.

Specified by:

equals in class Permission

hashCode

public int hashCode()

Specified by:

hashCode in class Permission

getActions

public String getActions()

Always returns the empty string; this permission type has no actions list.

Specified by:

getActions in class Permission

newPermissionCollection

public PermissionCollection newPermissionCollection()

Overrides:

newPermissionCollection in class Permission