if ( nameSet.contains( exprName ) == false ) continue;
	private void prepareGroup( IBaseTransform trans, int groupLevel, List exprMetaList )	{		Map exprMap = trans.getResultSetExpressions( );		if ( exprMap == null )			return;				Iterator it = exprMap.keySet( ).iterator( );		while ( it.hasNext( ) )		{			String exprName = (String) it.next( );			IBaseExpression baseExpr = (IBaseExpression) exprMap.get( exprName );			ExprMetaInfo exprMeta = new ExprMetaInfo( );			exprMeta.setDataType( baseExpr.getDataType( ) );			exprMeta.setGroupLevel( groupLevel );			exprMeta.setName( exprName );						if ( baseExpr instanceof IScriptExpression )			{				exprMeta.setType( ExprMetaInfo.SCRIPT_EXPRESSION );				exprMeta.setJSText( ((IScriptExpression)baseExpr).getText( ) );			}			exprMetaList.add( exprMeta );		}	}