Archives/gnosygnu_xowa
1
0
Fork 0
mirror of https://github.com/gnosygnu/xowa.git synced 2026-03-02 03:49:30 +00:00
Code Issues Projects Releases Wiki Activity

v3.2.1.1

Browse Source
This commit is contained in:
gnosygnu
2016-02-07 23:20:20 -05:00
parent 6d179ca59d
commit de67253a9c
215 changed files with 3387 additions and 2055 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
140_dbs/src/gplx/dbs/engines/tdbs/TdbSelect.java
View File

@@ -16,19 +16,19 @@ You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package gplx.dbs.engines.tdbs; import gplx.*; import gplx.dbs.*; import gplx.dbs.engines.*;
import gplx.core.criterias.*; import gplx.core.gfo_ndes.*; import gplx.dbs.qrys.*; import gplx.dbs.sqls.*;
import gplx.core.criterias.*; import gplx.core.gfo_ndes.*; import gplx.dbs.qrys.*; import gplx.dbs.sqls.*; import gplx.dbs.sqls.itms.*;
import gplx.core.lists.*; /*ComparerAble*/ import gplx.core.stores.*; /*GfoNdeRdr*/
class TdbSelectWkr implements Db_qryWkr {
public Object Exec(Db_engine engineObj, Db_qry cmdObj) {
TdbEngine engine = TdbEngine.cast(engineObj); Db_qry__select_cmd cmd = (Db_qry__select_cmd)cmdObj;
if (cmd.From().Tbls().Count() > 1) throw Err_.new_("gplx.tdbs", "joins not supported for tdbs", "sql", cmd.Xto_sql());
if (cmd.From().Tbls.Count() > 1) throw Err_.new_("gplx.tdbs", "joins not supported for tdbs", "sql", cmd.To_sql__exec(engineObj.Sql_wtr()));
TdbTable tbl = engine.FetchTbl(cmd.From().BaseTable().TblName());
GfoNdeList rv = (cmd.Where() == Db_qry_.WhereAll && cmd.Limit() == Db_qry__select_cmd.Limit_disabled) ? rv = tbl.Rows() : FilterRecords(tbl, cmd.Where(), cmd.Limit());
TdbTable tbl = engine.FetchTbl(cmd.From().Base_tbl.Name);
GfoNdeList rv = (cmd.Where_itm() == Sql_where_itm.Where__null && cmd.Limit() == Db_qry__select_cmd.Limit__disabled) ? rv = tbl.Rows() : FilterRecords(tbl, cmd.Where_itm().Root, cmd.Limit());
if (cmd.GroupBy() != null)
rv = TdbGroupByWkr.GroupByExec(cmd, rv, tbl);
if (cmd.OrderBy() != null) { // don't use null pattern here; if null ORDER BY, then don't call .Sort on GfoNdeList
ComparerAble comparer = Sql_order_by_sorter.new_((Sql_order_by_itm[])cmd.OrderBy().Flds().To_ary(Sql_order_by_itm.class));
if (cmd.Order() != null) { // don't use null pattern here; if null ORDER BY, then don't call .Sort on GfoNdeList
ComparerAble comparer = Sql_order_fld_sorter.new_(cmd.Order().Flds);
rv.Sort_by(comparer);
}
return GfoNdeRdr_.peers_(rv, false);
@@ -44,6 +44,19 @@ class TdbSelectWkr implements Db_qryWkr {
}
return rv;
}
public static GfoFldList To_GfoFldLst(TdbTable tbl, Sql_select_fld_list flds) {
GfoFldList rv = GfoFldList_.new_();
int len = flds.Len();
for (int i = 0; i < len; ++i) {
Sql_select_fld selectFld = flds.Get_at(i);
GfoFld fld = tbl.Flds().FetchOrNull(selectFld.Fld);
if (fld == null) throw Err_.new_wo_type("fld not found in tbl", "fldName", selectFld.Fld, "tblName", tbl.Name(), "tblFlds", tbl.Flds().To_str());
if (rv.Has(selectFld.Alias)) throw Err_.new_wo_type("alias is not unique", "fldName", selectFld.Fld, "flds", rv.To_str());
selectFld.GroupBy_type(fld.Type());
rv.Add(selectFld.Alias, selectFld.Val_type());
}
return rv;
}
public static final TdbSelectWkr Instance = new TdbSelectWkr(); TdbSelectWkr() {}
}
class TdbGroupByWkr {
@@ -51,15 +64,16 @@ class TdbGroupByWkr {
GfoNdeList rv = GfoNdeList_.new_();
Ordered_hash groupByHash = Ordered_hash_.New();
List_adp groupByFlds = select.GroupBy().Flds();
GfoFldList selectFldsForNewRow = select.Cols().Flds().XtoGfoFldLst(tbl);
Sql_select_fld_list selectFlds = select.Cols().Flds();
GfoFldList selectFldsForNewRow = TdbSelectWkr.To_GfoFldLst(tbl, select.Cols().Flds);
Sql_select_fld_list selectFlds = select.Cols().Flds;
for (int rowIdx = 0; rowIdx < selectRows.Count(); rowIdx++) {
GfoNde selectRow = selectRows.FetchAt_asGfoNde(rowIdx);
GfoNde groupByRow = FindOrNew(selectFldsForNewRow, groupByFlds, selectRow, groupByHash, rv);
for (int i = 0; i < selectFlds.Count(); i++) {
Sql_select_fld_base selectFld = selectFlds.Get_at(i);
Object val = groupByRow.Read(selectFld.Alias()); // groupByRow is keyed by Alias; EX: Count(Id) AS CountOf
groupByRow.WriteAt(i, selectFld.GroupBy_eval(val, selectRow.Read(selectFld.Fld()), selectFld.ValType()));
int len = selectFlds.Len();
for (int i = 0; i < len; ++i) {
Sql_select_fld selectFld = selectFlds.Get_at(i);
Object val = groupByRow.Read(selectFld.Alias); // groupByRow is keyed by Alias; EX: Count(Id) AS CountOf
groupByRow.WriteAt(i, selectFld.GroupBy_eval(val, selectRow.Read(selectFld.Fld), selectFld.Val_type()));
}
}
return rv;