public FilterItem setQuery(Query query)
{
_query = query;
if (_childItems == null)
{
if (_expression == null)
{
if (_selectItem.getQuery() == null)
{
_selectItem.setQuery(_query);
}
if (_operand is SelectItem)
{
SelectItem operand = (SelectItem)_operand;
if (operand.getQuery() == null)
{
operand.setQuery(_query);
}
}
}
}
else
{
foreach (FilterItem item in _childItems)
{
if (item.getQuery() == null)
{
item.setQuery(_query);
}
}
}
return(this);
}
} // select()
public Query select(params Column[] columns)
{
foreach (Column column in columns)
{
SelectItem selectItem = new SelectItem(column);
selectItem.setQuery(this);
_selectClause.addItem(selectItem);
}
return(this);
} // select()
} // groupBy()
public Query groupBy(params GroupByItem[] items)
{
foreach (GroupByItem item in items)
{
SelectItem selectItem = item.getSelectItem();
if (selectItem != null && selectItem.getQuery() == null)
{
selectItem.setQuery(this);
}
}
_groupByClause.addItems(items);
return(this);
} // groupBy()