Package jebl.util
Enum MaybeBoolean
- java.lang.Object
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- java.lang.Enum<MaybeBoolean>
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- jebl.util.MaybeBoolean
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<MaybeBoolean>
public enum MaybeBoolean extends java.lang.Enum<MaybeBoolean>
A tri-state boolean value that can also be "Maybe" besides True and False.- Version:
- $Id: MaybeBoolean.java 744 2007-07-30 02:57:11Z twobeers $ Created on 30/07/2007 14:15:09
- Author:
- Tobias Thierer
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static java.lang.Boolean
booleanValue(MaybeBoolean b)
static MaybeBoolean
consensus(boolean a, boolean b)
static MaybeBoolean
valueOf(boolean b)
Returns the enum constant of this type with the specified name.static MaybeBoolean
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static MaybeBoolean[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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True
public static final MaybeBoolean True
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False
public static final MaybeBoolean False
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Maybe
public static final MaybeBoolean Maybe
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Method Detail
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values
public static MaybeBoolean[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (MaybeBoolean c : MaybeBoolean.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static MaybeBoolean valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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valueOf
public static MaybeBoolean valueOf(boolean b)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
b
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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booleanValue
public static java.lang.Boolean booleanValue(MaybeBoolean b)
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consensus
public static MaybeBoolean consensus(boolean a, boolean b)
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