velosurf.validation
Class NotEmpty

java.lang.Object
  velosurf.validation.FieldConstraint
      velosurf.validation.NotEmpty

public class NotEmpty
extends FieldConstraint

A "not empty" constraint. Syntax is:

    <column not-empty="true"/>
  

Or:

  <column>
     <not-empty [message="error-message"]/>
   </column>

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

Author:

Claude Brisson

Constructor Summary

NotEmpty()
Default constructor.

Method Summary

java.lang.String	toString() return a string representation for this constraint.
boolean	validate(java.lang.Object data) Validate datea 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

Constructor Detail

NotEmpty

public NotEmpty()

Default constructor.

Method Detail

validate

public boolean validate(java.lang.Object data)

Validate datea against this constraint.

Overrides:

validate in class FieldConstraint

Parameters:

data - the data to be validated

Returns:

true if data is not null and not empty

toString

public java.lang.String toString()

return a string representation for this constraint.

Overrides:

toString in class java.lang.Object

Returns:

string