/**
* Creates a clone of the {@link SelectItem} for use within a cloned
* {@link Query}.
*
* @param clonedQuery
* a new {@link Query} object that represents the clone-to-be of
* a query. It is expected that {@link FromItem}s have already
* been cloned in this {@link Query}.
* @return
*/
public SelectItem clone(Query clonedQuery)
{
SelectItem subQuerySelectItem = (_subQuerySelectItem == null ? null : _subQuerySelectItem.clone());
FromItem fromItem;
if (_fromItem == null)
{
fromItem = null;
}
else if (clonedQuery != null && _query != null)
{
int indexOfFromItem = _query.getFromClause().indexOf(_fromItem);
if (indexOfFromItem != -1)
{
fromItem = clonedQuery.getFromClause().getItem(indexOfFromItem);
}
else
{
fromItem = _fromItem.clone();
}
}
else
{
fromItem = _fromItem.clone();
}
SelectItem s = new SelectItem(_column, fromItem, _function, _functionParameters, _expression,
subQuerySelectItem, _alias, _functionApproximationAllowed);
return(s);
} // clone()
public FromItem clone()
{
FromItem f = new FromItem();
f._alias = _alias;
f._join = _join;
f._table = _table;
f._expression = _expression;
if (_subQuery != null)
{
f._subQuery = _subQuery.clone();
}
if (_leftOn != null && _leftSide != null && _rightOn != null && _rightSide != null)
{
f._leftSide = _leftSide.clone();
f._leftOn = (SelectItem[])_leftOn.Clone();
f._rightSide = _rightSide.clone();
f._rightOn = (SelectItem[])_rightOn.Clone();
}
return(f);
} // clone()
