Bug 196894 BIRT Cross tab, Cube - Time dimension enhancements
There were a couple of time dimension related enhancments planned post BIRT 2.2. This entry is to track those. This enhancments also includes - supporting additional predefined data time formats, that could make it easier to define data time dimension and use it in data items.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/olap/LevelHandle.java
* 
	 * @return iterator of static values
	 */
	public Iterator staticValuesIterator( )
	{
		PropertyHandle propHandle = getPropertyHandle( STATIC_VALUES_PROP );
		assert propHandle != null;
		return propHandle.iterator( );
	}
	/**
	 * Sets the base of the interval property of this level.IntervalBase, in
	 * conjunction with Interval and IntervalRange, determines how data is
	 * divided into levels.
	 * 
	 * @param intervalBase
	 *            interval base property value.
	 * @throws SemanticException
	 *             if the property is locked.
	 */
	public void setIntervalBase( String intervalBase ) throws SemanticException
	{
		setStringProperty( INTERVAL_BASE_PROP, intervalBase );
	}
	/**
	 * Return the interval base property value of this level.
	 * 
	 * @return interval baseF property value of this level.
	 */
	public String getIntervalBase( )
	{