public MessageFormatFilter() 
{
    messageFormatSupport = new MessageFormatSupport();
}

Default constructor.

Uses a general number format for the current locale.

 public Object clone() throws CloneNotSupportedException 
{
    final MessageFormatFilter mf = (MessageFormatFilter) super.clone();
    mf.messageFormatSupport = (MessageFormatSupport) messageFormatSupport.clone();
    return mf;
}

Clones this DataSource.

 public String getFormatString() 
{
    return messageFormatSupport.getFormatString();
}

Returns the format string used in the message format.

 public String getNullString() 
{
    return messageFormatSupport.getNullString();
}

Returns the replacement text if one of the referenced fields in the message is null.

 public Object getValue(ExpressionRuntime runtime,
    Element element) 
{
    if (runtime == null)
    {
      return null;
    }
    final ResourceBundleFactory resourceBundleFactory =
        runtime.getResourceBundleFactory();
    final Locale newLocale = resourceBundleFactory.getLocale();
    if (ObjectUtilities.equal(newLocale, locale) == false)
    {
      messageFormatSupport.setLocale(resourceBundleFactory.getLocale());
      locale = newLocale;
    }
    return messageFormatSupport.performFormat(runtime.getDataRow());
}

Returns the formatted string. The value is read using the data source given and formated using the formatter of this object. The formating is guaranteed to completly form the object to an string or to return the defined NullValue.

If format, datasource or object are null, the NullValue is returned.

 public  void setFormatString(String format) 
{
    messageFormatSupport.setFormatString(format);
}

Defines the format string for the java.text.MessageFormat object used in this implementation.

 public  void setNullString(String nullString) 
{
    this.messageFormatSupport.setNullString(nullString);
}

Defines the replacement text that is used, if one of the referenced fields in the message is null.