jsdsi
Class Threshold

java.lang.Object
  jsdsi.Obj
      jsdsi.Threshold

All Implemented Interfaces:

java.io.Serializable, Subject

public class Threshold

extends Obj

implements Subject

A subject that can delegate authority to any K of N specified subjects. For example, if K is 2, N is 3, and the subjects are Alice, Bob, and Carol, any two of those subjects can pass on any authority granted to this subject (if delegation is permitted).

Version:

$Revision: 1.3.2.1 $ $Date: 2005/11/08 03:12:52 $

Author:

Sameer Ajmani, Sean Radford

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class jsdsi.Subject

Subject.Default

Field Summary

Fields inherited from class jsdsi.Obj

_obj

Constructor Summary

Threshold(Subject[] s, int t)
Creates a new Threshold from an array of subjects and a threshold.

Method Summary

boolean	equals(java.lang.Object o)
Subject[]	getSubjects()
int	getThreshold()
int	hashCode()
SexpList	toSexp() Creates an SexpList -representation from this SDSI-object.
SexpList	toSexp(Principal iss)

Methods inherited from class jsdsi.Obj

parseObj, parseObj, readResolve, toByteArray, toString, toString, toTransport

Methods inherited from class java.lang.Object

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

Constructor Detail

Threshold

public Threshold(Subject[] s,
                 int t)

Creates a new Threshold from an array of subjects and a threshold.

Parameters:

s - array of subjects.

t - threshold number (at most subjects.length).

Method Detail

getThreshold

public int getThreshold()

Returns:

the threshold number of this Threshold.

getSubjects

public Subject[] getSubjects()

Returns:

the array of subjects of this Threshold.

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in class Obj

See Also:

Object.equals(Object)

hashCode

public int hashCode()

Specified by:

hashCode in class Obj

See Also:

Object.hashCode()

toSexp

public SexpList toSexp()

Description copied from class: Obj

Creates an SexpList -representation from this SDSI-object.

Specified by:

toSexp in interface Subject

Specified by:

toSexp in class Obj

Returns:

an SexpList that represents this SDSI-object.

toSexp

public SexpList toSexp(Principal iss)