com.mchange.v1.lang

Class TVLUtils

java.lang.Object

com.mchange.v1.lang.TVLUtils

public final class TVLUtils
extends java.lang.Object

Three-Valued Logic Utils -- utilities for treating a Boolean variable as a three-state logical entity, with states true, false, or unknown if the variable is null.

Constructor Summary

Constructors

Constructor and Description
TVLUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	isDefinitelyFalse(java.lang.Boolean check)
static boolean	isDefinitelyTrue(java.lang.Boolean check)
static boolean	isPossiblyFalse(java.lang.Boolean check)
static boolean	isPossiblyTrue(java.lang.Boolean check)
static boolean	isUnknown(java.lang.Boolean check)

Methods inherited from class java.lang.Object

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

Constructor Detail

TVLUtils

public TVLUtils()

Method Detail

isDefinitelyTrue

public static final boolean isDefinitelyTrue(java.lang.Boolean check)

isDefinitelyFalse

public static final boolean isDefinitelyFalse(java.lang.Boolean check)

isPossiblyTrue

public static final boolean isPossiblyTrue(java.lang.Boolean check)

isPossiblyFalse

public static final boolean isPossiblyFalse(java.lang.Boolean check)

isUnknown

public static final boolean isUnknown(java.lang.Boolean check)