Examples with Ordering org.teiid.language.SortSpecification.Ordering used on opensource projects

Example 1 with Ordering

use of org.teiid.language.SortSpecification.Ordering in project teiid by teiid.

the class LanguageBridgeFactory method translate.

public org.teiid.language.OrderBy translate(OrderBy orderBy, boolean set) {
    if (orderBy == null) {
        return null;
    }
    List<OrderByItem> items = orderBy.getOrderByItems();
    List<SortSpecification> translatedItems = new ArrayList<SortSpecification>();
    for (int i = 0; i < items.size(); i++) {
        Expression symbol = items.get(i).getSymbol();
        Ordering direction = items.get(i).isAscending() ? Ordering.ASC : Ordering.DESC;
        SortSpecification orderByItem = null;
        if (!set && (items.get(i).isUnrelated() || symbol instanceof ElementSymbol)) {
            orderByItem = new SortSpecification(direction, translate(symbol));
        } else {
            orderByItem = new SortSpecification(direction, new ColumnReference(null, Symbol.getShortName(((Symbol) symbol).getOutputName()), null, symbol.getType()));
        }
        orderByItem.setNullOrdering(items.get(i).getNullOrdering());
        translatedItems.add(orderByItem);
    }
    return new org.teiid.language.OrderBy(translatedItems);
}