edu.isi.pegasus.common.util

Class Boolean

java.lang.Object

edu.isi.pegasus.common.util.Boolean

public class Boolean
extends java.lang.Object

This class converts a boolean property specification (string) in various representations into a booelan value. It is liberal in the representation it accepts, but strict in what it produces.

Version:

$Revision$

Author:

Gaurang Mehta, Karan Vahi, Jens-S. Vöckler

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	FALSE The character representation of a false value.
static java.lang.String	TRUE The character representation of a true value.

Constructor Summary

Constructors

Constructor and Description
Boolean()

Method Summary

Modifier and Type	Method and Description
static boolean	parse(java.lang.String rep) Converts a boolean string representation into a boolean value.
static boolean	parse(java.lang.String rep, boolean deflt) Converts a boolean string representation into a boolean value.
static java.lang.String	print(boolean val) Converts a boolean value into a strict representation of it.

Methods inherited from class java.lang.Object

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

Field Detail

TRUE

public static final java.lang.String TRUE

The character representation of a true value.

See Also:

Constant Field Values

FALSE

public static final java.lang.String FALSE

The character representation of a false value.

See Also:

Constant Field Values

Constructor Detail

Boolean

public Boolean()

Method Detail

print

public static java.lang.String print(boolean val)

Converts a boolean value into a strict representation of it.

Parameters:

val - is the boolean input value

Returns:

a string representing the boolean value.

parse

public static boolean parse(java.lang.String rep)

Converts a boolean string representation into a boolean value. Representations may include non-negative integers, where only 0 means false. Other valid string representations of true include:

 true
 yes
 on
 

Any other string representation is taken to mean false

Parameters:

rep - is the input string representing a boolean value.

Returns:

a boolean value from the representation.

parse

public static boolean parse(java.lang.String rep,
                            boolean deflt)

Converts a boolean string representation into a boolean value. Representations may include non-negative integers, where only 0 means false. Other valid string representations of true include:

 true
 yes
 on
 

Other valid string representations of false include, besides the numerical zero:

 false
 no
 off
 

Any other string representation is taken to mean the boolean value indicated by the paramater deflt.

Parameters:

rep - is the input string representing a boolean value.

deflt - is the deflt value to use in case rep does not represent a valid boolean value.

Returns:

a boolean value from the representation.