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/impl/CubeQueryUtil.java
{
		private IDatasetIterator dataSetIterator;
		private boolean hasNext;
		private Map levelValueMap;
		private String targetLevelName;
		private Object currentValue;
		private String attribute;
		
		public MemberValueIterator( IDatasetIterator it, Map levelValueMap, String targetLevelName, String attribute )
		{
			this.dataSetIterator = it;
			this.hasNext = true;
			this.levelValueMap = levelValueMap;
			this.targetLevelName = targetLevelName;
			this.attribute = attribute;