Re: how to translate input into double/float value

2007-11-02 Thread Imran Amajd 

How can we add DoubleTranslator.java into Existing application?? 

Thanks.



Nick Westgate wrote:
 
 You provide a translator. The framework provides one for Double etc:
 http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/translator/
 
 You can add more in your AppModule.java, like this ...
 (I know this seems like overkill, but will likely be improved later.)
 
  // add a Float translator
  public static void contributeTranslatorDefaultSource(
  MappedConfigurationClass?, Translator? configuration)
  {
  configuration.add(Float.class, new TranslatorFloat()
  {
  /**
   * Parses blank values to null, otherwise parses the client
 value to a float
   *
   * @throws ValidationException if the clientValue can not be
 parsed
   */
  public Float parseClient(String clientValue, Messages
 messages)
  throws ValidationException
  {
  if (InternalUtils.isBlank(clientValue))
  return null;
 
  try
  {
  Float result = new Float(clientValue.trim());
  if (result.isInfinite())
  {
  throw new
 ValidationException(messages.format(number-range-exception,
  clientValue));
  }
  return result;
  }
  catch (NumberFormatException ex)
  {
  throw new
 ValidationException(messages.format(number-format-exception,
  clientValue));
  }
  }
 
  /**
   * Converts null to the blank string, non-null to a string
 representation.
   */
  public String toClient(Float value)
  {
  return value == null ?  : value.toString();
  }
  });
  }
 
 Cheers,
 Nick.
 
 
 Imran Amajd wrote:
 Hello,
 
 Please guide me how i can translate input value into double or float.
 Thanks
 
 -Imran Amjad
 
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how to translate input into double/float value

2007-10-12 Thread Imran Amajd 

Hello,

Please guide me how i can translate input value into double or float. Thanks

-Imran Amjad
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Re: how to translate input into double/float value

2007-10-12 Thread Ken nashua 

Nick,

For a PropertySelection component housing strings... am I free to perform OGNL 
arithmetic on those elements if they happen to be numeric strings?

I am wondering if I need a translator or if it is illegal to perform ognl 
arithmetic on PropertySelection strings that happen to be 1, or 2..

Best regards
Ken in nashua
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Re: how to translate input into double/float value

2007-10-12 Thread Nick Westgate 

You provide a translator. The framework provides one for Double etc:
http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry/translator/

You can add more in your AppModule.java, like this ...
(I know this seems like overkill, but will likely be improved later.)

// add a Float translator
public static void contributeTranslatorDefaultSource(
MappedConfigurationClass?, Translator? configuration)
{
configuration.add(Float.class, new TranslatorFloat()
{
/**
 * Parses blank values to null, otherwise parses the client value 
to a float
 *
 * @throws ValidationException if the clientValue can not be parsed
 */
public Float parseClient(String clientValue, Messages messages)
throws ValidationException
{
if (InternalUtils.isBlank(clientValue))
return null;

try
{
Float result = new Float(clientValue.trim());
if (result.isInfinite())
{
throw new 
ValidationException(messages.format(number-range-exception,
clientValue));
}
return result;
}
catch (NumberFormatException ex)
{
throw new 
ValidationException(messages.format(number-format-exception,
clientValue));
}
}

/**
 * Converts null to the blank string, non-null to a string 
representation.
 */
public String toClient(Float value)
{
return value == null ?  : value.toString();
}
});
}

Cheers,
Nick.


Imran Amajd wrote:

Hello,

Please guide me how i can translate input value into double or float. Thanks

-Imran Amjad


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