ajanta.security.acl
Class AclEntryImpl

java.lang.Object
  |
  +--ajanta.security.acl.AclEntryImpl

All Implemented Interfaces:

java.security.acl.AclEntry, java.lang.Cloneable, java.io.Serializable

public class AclEntryImpl

extends java.lang.Object

implements java.security.acl.AclEntry, java.io.Serializable

AclEntryImpl implements java.security.acl.AclEntry interface

See Also:

AclEntry, Serialized Form

Constructor Summary

AclEntryImpl()
Constructs a AclEntryImpl object

AclEntryImpl(java.security.Principal principal)
Constructs a AclEntryImpl object

Method Summary

boolean	addPermission(java.security.acl.Permission permission) Adds the specified permission to this ACL entry.
boolean	checkPermission(java.security.acl.Permission permission) Checks if the specified permission is part of the permission set in this entry.
java.lang.Object	clone() Clones this ACL entry
java.security.Principal	getPrincipal() Returns the principal for which permissions are granted or denied by this ACL entry.
boolean	isNegative() Returns true if this is a negative ACL entry (one denying the associated principal the set of permissions in the entry), false otherwise.
java.util.Enumeration	permissions() Returns an enumeration of the permissions in this ACL entry.
boolean	removePermission(java.security.acl.Permission permission) Removes the specified permission from this ACL entry.
void	setNegativePermissions() Sets this ACL entry to be a negative one.
boolean	setPrincipal(java.security.Principal user) Specifies the principal for which permissions are granted or denied by this ACL entry
java.lang.String	toString() Returns a string representation of the contents of this ACL entry.

Methods inherited from class java.lang.Object

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

Constructor Detail

AclEntryImpl

public AclEntryImpl()

Constructs a AclEntryImpl object

AclEntryImpl

public AclEntryImpl(java.security.Principal principal)

Constructs a AclEntryImpl object

Parameters:

principal - - principal for which this AclEntry is created

Method Detail

setPrincipal

public boolean setPrincipal(java.security.Principal user)

Specifies the principal for which permissions are granted or denied by this ACL entry

Specified by:

setPrincipal in interface java.security.acl.AclEntry

Parameters:

user - - the principal to be set for this entry.

Returns:

true if the principal is set, false if there was already a principal set for this entry.

getPrincipal

public java.security.Principal getPrincipal()

Returns the principal for which permissions are granted or denied by this ACL entry. Returns null if there is no principal set for this entry yet.

Specified by:

getPrincipal in interface java.security.acl.AclEntry

Returns:

the principal associated with this entry.

setNegativePermissions

public void setNegativePermissions()

Sets this ACL entry to be a negative one. That is, the associated principal (e.g., a user or a group) will be denied the permission set specified in the entry. Note: ACL entries are by default positive. An entry becomes a negative entry only if this setNegativePermissions method is called on it.

Specified by:

setNegativePermissions in interface java.security.acl.AclEntry

isNegative

public boolean isNegative()

Returns true if this is a negative ACL entry (one denying the associated principal the set of permissions in the entry), false otherwise.

Specified by:

isNegative in interface java.security.acl.AclEntry

Returns:

true if this is a negative ACL entry, false if it's not.

addPermission

public boolean addPermission(java.security.acl.Permission permission)

Adds the specified permission to this ACL entry. Note: An entry can have multiple permissions.

Specified by:

addPermission in interface java.security.acl.AclEntry

Parameters:

permission - - the permission to be associated with the principal in this entry.

Returns:

true if the permission was added, false if the permission was already part of this entry's permission set.

removePermission

public boolean removePermission(java.security.acl.Permission permission)

Removes the specified permission from this ACL entry.

Specified by:

removePermission in interface java.security.acl.AclEntry

Parameters:

permission - - the permission to be removed from this entry.

Returns:

true if the permission is removed, false if the permission was not part of this entry's permission set.

checkPermission

public boolean checkPermission(java.security.acl.Permission permission)

Checks if the specified permission is part of the permission set in this entry.

Specified by:

checkPermission in interface java.security.acl.AclEntry

Parameters:

permission - - the permission to be checked for.

Returns:

true if the permission is part of the permission set in this entry, false otherwise.

permissions

public java.util.Enumeration permissions()

Returns an enumeration of the permissions in this ACL entry.

Specified by:

permissions in interface java.security.acl.AclEntry

Returns:

an enumeration of the permissions in this ACL entry.

toString

public java.lang.String toString()

Returns a string representation of the contents of this ACL entry.

Specified by:

toString in interface java.security.acl.AclEntry

Overrides:

toString in class java.lang.Object

Returns:

a string representation of the contents.

clone

public java.lang.Object clone()

Clones this ACL entry

Specified by:

clone in interface java.security.acl.AclEntry

Overrides:

clone in class java.lang.Object

Returns:

a clone of this ACL entry.