de.jstacs.parameters.validation
Class NumberValidator<E extends Comparable<? extends Number>>

java.lang.Object
  de.jstacs.parameters.validation.NumberValidator<E>

Type Parameters:

E - the subclass of Number to be validated

All Implemented Interfaces:

ParameterValidator, Storable, Cloneable

public class NumberValidator<E extends Comparable<? extends Number>>
extends Object
implements ParameterValidator

Class that validates all subclasses of Number that implement Comparable (e.g. Double, Long, Float) for compliance with a specified lower and upper bound.

Author:

Jan Grau

Constructor Summary

NumberValidator(E lowerBound, E upperBound)
Constructs a NumberValidator for a given upper and lower bound.

NumberValidator(StringBuffer representation)
The standard constructor for the interface Storable.

Method Summary

boolean	checkValue(Object value) Returns true if the value is valid and false otherwise.
NumberValidator	clone() This method returns a deep copy of the current instance.
void	fromXML(StringBuffer representation) Parses a NumberValidator from the XML representation as returned by toXML().
String	getErrorMessage() Returns the error message if ParameterValidator.checkValue(Object) returned false.
E	getLowerBound() Returns the lower bound of the NumberValidator.
String	toString()
StringBuffer	toXML() This method returns an XML representation as StringBuffer of an instance of the implementing class.

Methods inherited from class java.lang.Object

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

Constructor Detail

NumberValidator

public NumberValidator(E lowerBound,
                       E upperBound)

Constructs a NumberValidator for a given upper and lower bound.

Parameters:

lowerBound - the lower bound

upperBound - the upper bound

NumberValidator

public NumberValidator(StringBuffer representation)
                throws NonParsableException

The standard constructor for the interface Storable. Constructs a NumberValidator out of a XML representation.

Parameters:

representation - the XML representation as StringBuffer

Throws:

NonParsableException - if the representation could not be parsed

Method Detail

clone

public NumberValidator clone()

Description copied from interface: ParameterValidator

This method returns a deep copy of the current instance.

Specified by:

clone in interface ParameterValidator

Overrides:

clone in class Object

Returns:

a deep copy of the current index

See Also:

Cloneable

getLowerBound

public E getLowerBound()

Returns the lower bound of the NumberValidator.

Returns:

the lower bound of the NumberValidator

getErrorMessage

public String getErrorMessage()

Description copied from interface: ParameterValidator

Returns the error message if ParameterValidator.checkValue(Object) returned false.

Specified by:

getErrorMessage in interface ParameterValidator

Returns:

the error message

checkValue

public boolean checkValue(Object value)

Description copied from interface: ParameterValidator

Returns true if the value is valid and false otherwise.

Specified by:

checkValue in interface ParameterValidator

Parameters:

value - the Object to be checked

Returns:

if value is valid

fromXML

public void fromXML(StringBuffer representation)
             throws NonParsableException

Parses a NumberValidator from the XML representation as returned by toXML().

Parameters:

representation - the XML representation

Throws:

NonParsableException - if the XML code could not be parsed

toXML

public StringBuffer toXML()

Description copied from interface: Storable

This method returns an XML representation as StringBuffer of an instance of the implementing class.

Specified by:

toXML in interface Storable

Returns:

the XML representation

toString

public String toString()

Overrides:

toString in class Object