Bug 188224 DTE should give out APIs about CrossTab filter equal value list and member value list Util.
DTE should give out APIs about CrossTab filter equal value list and member value list Util.
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataSetIterator.java
{
			return IGroupDefinition.DAY_INTERVAL;
		}
		else if ( DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_WEEK_OF_MONTH.equals( timeType )
				|| DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_WEEK_OF_YEAR.equals( timeType ))
		{
			return IGroupDefinition.WEEK_INTERVAL;
		}
		else if ( DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_QUARTER.equals( timeType ))
		{
			return IGroupDefinition.QUARTER_INTERVAL;
		}
		else if ( DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_YEAR.equals( timeType ))
		{
			return IGroupDefinition.YEAR_INTERVAL;
		}
		else if ( DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_HOUR.equals( timeType ))
		{
			return IGroupDefinition.HOUR_INTERVAL;
		}
		else if ( DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_MINUTE.equals( timeType ))
		{
			return IGroupDefinition.MINUTE_INTERVAL;
		}
		else if ( DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_SECOND.equals( timeType ))
		{
			return IGroupDefinition.SECOND_INTERVAL;
		}
		else if ( DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_MONTH.equals( timeType ))
		{