Bug 201858 Provide utility method for UI to check the proper aggregation type of xTab measure.
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/api/ICubeQueryUtil.java
* @throws AdapterException
	 */
	public List getReferableBindings( String targetLevel,
			ICubeQueryDefinition cubeQueryDefn, boolean isSort ) throws AdapterException;
	
	/**
	 * Return a list of ILevelDefinition instances that referenced by 
	 * 
	 * @param targetLevel
	 * @param bindingExpr
	 * @param queryDefn
	 * @return
	 * @throws AdapterException
	 */
	public List getReferencedLevels( String targetLevel,
			String bindingExpr, ICubeQueryDefinition queryDefn ) throws AdapterException;
	/**
	 * Return the measure name referenced by the expression.
	 * 
	 * @param expr
	 * @return
	 * @throws AdapterException
	 */
	public String getReferencedMeasureName( String expr ) throws AdapterException;
	
	/**
	 * Return cascading member values.
	 * 
	 * @param cubeHandle
	 * @param targetLevel