Bug 182680 Use feature of new Aggregation framework of Data Engine.
DataEngine will implement new aggregation framework in 2.2.0RC0. After the implementation is finished Engine should go ahead to use new column bindings in definition of map/highlight.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ExprManager.java
* @return
	 */
	Map getAutoBindingExprMap( )
	{
		return this.autoBindingExprMap;
	}
	/**
	 * TODO: remove me
	 * 
	 * Set the entry group level of the expr manager. The column bindings of
	 * groups with group level greater than the given key will not be visible to
	 * outside.
	 * 
	 * @param i
	 */
	void setEntryGroupLevel( int i )
	{
		this.entryLevel = i;
	}
	
	/**
	 * @throws DataException
	 */
	public void validateColumnBinding( ) throws DataException
	{
		ExprManagerUtil.validateColumnBinding( this, baseQueryDefn );
	}
	
}