Module com.darkcollective.relix.provenance

Package com.darkcollective.relix.provenance

Enum Class SecurityLevel

java.lang.Object

java.lang.Enum<SecurityLevel>

com.darkcollective.relix.provenance.SecurityLevel

All Implemented Interfaces:

Serializable, Comparable<SecurityLevel>, Constable

public enum SecurityLevel
extends Enum<SecurityLevel>

A confidentiality / clearance level, ordered from least to most restrictive — the carrier of the SecurityLattice semiring.

The declaration order is the total order PUBLIC < CONFIDENTIAL < SECRET < TOP_SECRET, with PUBLIC the least restrictive (most accessible) and TOP_SECRET the most restrictive. The lattice's min/max therefore mean "most accessible" / "highest clearance required".

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CONFIDENTIAL	Restricted to confidential clearance or above.
PUBLIC	Least restrictive — readable by anyone.
SECRET	Restricted to secret clearance or above.
TOP_SECRET	Most restrictive.

Method Summary

Modifier and Type	Method	Description
static SecurityLevel	valueOf(String name)	Returns the enum constant of this class with the specified name.
static SecurityLevel[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

PUBLIC

public static final SecurityLevel PUBLIC

Least restrictive — readable by anyone. The lattice multiplicative identity.

CONFIDENTIAL

public static final SecurityLevel CONFIDENTIAL

Restricted to confidential clearance or above.

SECRET

public static final SecurityLevel SECRET

Restricted to secret clearance or above.

TOP_SECRET

public static final SecurityLevel TOP_SECRET

Most restrictive. The lattice additive identity (absent / unreachable).

Method Details

values

public static SecurityLevel[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static SecurityLevel valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null