File	Doc	Category	Size	Date	Package
DelegationPermission.java	API Doc	Java SE 5 API	11113	Fri Aug 26 14:57:48 BST 2005	javax.security.auth.kerberos

DelegationPermission

• java.lang.Object
  • java.security.Permission
    • java.security.BasicPermission

DelegationPermission("\"host/foo.example.com@EXAMPLE.COM\" \"krbtgt/EXAMPLE.COM@EXAMPLE.COM\"");

DelegationPermission("\"backup/bar.example.com@EXAMPLE.COM\" \"nfs/home.EXAMPLE.COM@EXAMPLE.COM\"");

Fields Summary
private static final long	serialVersionUID
private transient String	subordinate
private transient String	service

Constructors Summary
public DelegationPermission(String principals) Create a new DelegationPermission with the specified subordinate and target principals. param principals the name of the subordinate and target principals super(principals); init(principals);
public DelegationPermission(String principals, String actions) Create a new DelegationPermission with the specified subordinate and target principals. param principals the name of the subordinate and target principals param actions should be null. super(principals, actions); init(principals);

Methods Summary
public boolean	equals(java.lang.Object obj) Checks two DelegationPermission objects for equality. param obj the object to test for equality with this object. return true if obj is a DelegationPermission, and has the same subordinate and service principal as this. DelegationPermission object. if (obj == this) return true; if (! (obj instanceof DelegationPermission)) return false; DelegationPermission that = (DelegationPermission) obj; return implies(that);
public int	hashCode() Returns the hash code value for this object. return a hash code value for this object. return getName().hashCode();
public boolean	implies(java.security.Permission p) Checks if this Kerberos delegation permission object "implies" the specified permission. If none of the above are true, implies returns false. param p the permission to check against. return true if the specified permission is implied by this object, false if not. if (!(p instanceof DelegationPermission)) return false; DelegationPermission that = (DelegationPermission) p; if (this.subordinate.equals(that.subordinate) && this.service.equals(that.service)) return true; return false;
private void	init(java.lang.String target) Initialize the DelegationPermission object. StringTokenizer t = null; if (!target.startsWith("\"")) { throw new IllegalArgumentException ("service principal [" + target + "] syntax invalid: " + "improperly quoted"); } else { t = new StringTokenizer(target, "\"", false); subordinate = t.nextToken(); if (t.countTokens() == 2) { t.nextToken(); // bypass whitespace service = t.nextToken(); } else if (t.countTokens() > 0) { throw new IllegalArgumentException ("service principal [" + t.nextToken() + "] syntax invalid: " + "improperly quoted"); } }
public java.security.PermissionCollection	newPermissionCollection() Returns a PermissionCollection object for storing DelegationPermission objects. DelegationPermission objects must be stored in a manner that allows them to be inserted into the collection in any order, but that also enables the PermissionCollection implies method to be implemented in an efficient (and consistent) manner. return a new PermissionCollection object suitable for storing DelegationPermissions. return new KrbDelegationPermissionCollection();
private synchronized void	readObject(java.io.ObjectInputStream s) readObject is called to restore the state of the DelegationPermission from a stream. // Read in the action, then initialize the rest s.defaultReadObject(); init(getName());
private synchronized void	writeObject(java.io.ObjectOutputStream s) WriteObject is called to save the state of the DelegationPermission to a stream. The actions are serialized, and the superclass takes care of the name. s.defaultWriteObject();