Bug 198172 Crosstab - cannot cast from BigDecimal to Double
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataSetIterator.java
{
			return 0;
		}
		else if ( DesignChoiceConstants.DATE_TIME_LEVEL_TYPE_SECOND.equals( timeType ) )
		{
			return 0;
		}
		else
			throw new AdapterException( "Error" );
	}
	
	/**
	 * 
	 * @param query
	 * @param resultMetaList
	 * @param levelNameColumnNamePair
	 * @param hierHandle
	 * @throws AdapterException
	 */
	private void prepareLevels( QueryDefinition query,
			TabularHierarchyHandle hierHandle, List metaList, String dimName )
			throws AdapterException
	{
		try
		{
			
			List levels = hierHandle.getContents( TabularHierarchyHandle.LEVELS_PROP );
			for ( int j = 0; j < levels.size( ); j++ )
			{
				TabularLevelHandle level = (TabularLevelHandle) levels.get( j );