Bug 148392 Float type fails to be retrieven in scripted datasets
1/ Create a scripted dataset with Float type values, retrive them in the fetch dataset's method configure the output columns and assign them the Float type => result preview fails to show the float columns values 2/ Set the columns' type as Any => the result preview shows normally 3/ Create a chart based on the previous dataset configure the databindings setting float as the said columns type (the dataset's type is Any) => the series fails to appear in the graph (see error in footer) 4/ Change the data bindings for the said columns as Any and use the series fromatting to fix it => the series appears normally
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
String key = String.valueOf( dateStyle ) +":"+ String.valueOf( timeStyle ) +":"+locale.getName( ) ;
		DateFormat result = (DateFormat)dateTimeholder.get( key );
		if( result == null )
		{
			result = DateFormat.getDateTimeInstance( dateStyle, timeStyle, locale );
			dateTimeholder.put( key, result );
		}
		return result;
	}
	
	/**
	 * 
	 * @param dateStyle
	 * @param locale
	 * @return
	 */
	public static DateFormat getDateInstance( int dateStyle, ULocale locale )
	{
		String key = String.valueOf( dateStyle ) +":"+locale.getName( );
		
		DateFormat result = (DateFormat)dateHolder.get( key );
		if( result == null )
		{
			result = DateFormat.getDateInstance( dateStyle, locale );
			dateHolder.put( key, result );
		}
		return result;
	}
}