velosurf.validation
Class Range

java.lang.Object
  velosurf.validation.FieldConstraint
      velosurf.validation.Range

public class Range
extends FieldConstraint

A type and range constraint on numbers. Syntax is:

    <column [type="integer"] [min="min"] [max="max"]/>
  

where you donnot need to specify both min and max.

Or:

     <integer|number [min="min-value"] [max="max-value"] [message="error-message"] />
 

Note: this constraint is not meant to replace an internal SQL constraint in the database, since it cannot be made sure that complex updates will respect this constraint.

Author:

Claude Brisson

Field Summary

private boolean	integer integer value expected.
private static java.util.regex.Pattern	intPattern integer value pattern matcher.
private java.lang.Number	max maximum value.
private java.lang.Number	min minimum value.

Constructor Summary

Range()
Constructor.

Method Summary

void	setInteger(boolean integer) Whether to expect an integer or not.
void	setMax(java.lang.Number max) Maximum value setter.
void	setMin(java.lang.Number min) Minimum value setter.
java.lang.String	toString() return a string representation for this constraint.
boolean	validate(java.lang.Object data) Validate data against this constraint.

Methods inherited from class velosurf.validation.FieldConstraint

getMessage, setMessage, validate

Methods inherited from class java.lang.Object

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

Field Detail

min

private java.lang.Number min

minimum value.

max

private java.lang.Number max

maximum value.

integer

private boolean integer

integer value expected.

intPattern

private static java.util.regex.Pattern intPattern

integer value pattern matcher.

Constructor Detail

Range

public Range()

Constructor.

Method Detail

setInteger

public void setInteger(boolean integer)

Whether to expect an integer or not.

Parameters:

integer - a boolean

setMin

public void setMin(java.lang.Number min)

Minimum value setter.

Parameters:

min - minimum value

setMax

public void setMax(java.lang.Number max)

Maximum value setter.

Parameters:

max - maximum value

validate

public boolean validate(java.lang.Object data)
                 throws java.sql.SQLException

Validate data against this constraint.

Overrides:

validate in class FieldConstraint

Parameters:

data - the data to be validated

Returns:

true if data is in the expected range and type

Throws:

java.sql.SQLException

toString

public java.lang.String toString()

return a string representation for this constraint.

Overrides:

toString in class java.lang.Object

Returns:

string