Bug 202121 setDateFormat does not working
If you want to set date format of the table column style you have to use setDateTimeFormatCategory and setDateTimeFormat instead of setDateFormatCategory and setDateFormat. If you will try to use setDateFormatCategory in the first case in xml-source you will see that your style contains dateFormat property. This property is not working at all, in the second case in xml-source you will see that your style contains dateTimeFormat property. I think it will be better if the result of setDateTimeFormatCategory and setDateFormatCategory will be the same.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/css/dom/AbstractStyle.java
public String getCue( )
	{
		
		return null;
	}
	public void setCue( String cue ) throws DOMException
	{
		
	}
	public String getCueAfter( )
	{
		
		return null;
	}
	public void setCueAfter( String cueAfter ) throws DOMException
	{
		
	}
	public String getCueBefore( )
	{
		
		return null;
	}
	public void setCueBefore( String cueBefore ) throws DOMException
	{
		
	}
	public String getCursor( )
	{