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64 lines
3.4 KiB
64 lines
3.4 KiB
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012 gnosygnu@gmail.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gplx.dbs; import gplx.*;
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import gplx.core.criterias.*; import gplx.dbs.qrys.*; import gplx.dbs.sqls.*; import gplx.dbs.sqls.itms.*;
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public class Db_qry_ {
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public static Db_qry__select_cmd select_cols_(String tbl, Criteria crt, String... cols){return select_().From_(tbl).Where_(crt).Cols_(cols);}
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public static Db_qry__select_cmd select_val_(String tbl, String col, Criteria crt) {return select_().From_(tbl).Where_(crt).Cols_(col);}
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public static Db_qry__select_cmd select_tbl_(String tbl) {return select_().From_(tbl).Cols_all_();}
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public static Db_qry__select_cmd select_() {return new Db_qry__select_cmd();}
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public static Db_qry__select_cmd select_(String tbl, String... cols) {return new Db_qry__select_cmd().From_(tbl).Cols_(cols);}
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public static Db_qry_delete delete_(String tbl, Criteria crt) {return Db_qry_delete.new_(tbl, crt);}
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public static Db_qry_delete delete_tbl_(String tbl) {return Db_qry_delete.new_(tbl);}
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public static Db_qry_insert insert_(String tbl) {return new Db_qry_insert(tbl);}
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public static Db_qry_insert insert_common_(String tbl, Keyval... pairs) {
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Db_qry_insert cmd = new Db_qry_insert(tbl);
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for (Keyval pair : pairs)
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cmd.Val_obj(pair.Key(), pair.Val());
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return cmd;
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}
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public static Sql_join_fld New_join__join(String trg_fld, String src_tbl, String src_fld) {return new Sql_join_fld(trg_fld, src_tbl, src_fld);}
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public static Sql_join_fld New_join__same(String tbl, String fld) {return new Sql_join_fld(fld, tbl, fld);}
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public static Db_qry_update update_(String tbl, Criteria crt) {
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Db_qry_update update = new Db_qry_update();
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update.From_(tbl);
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update.Where_(crt);
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return update;
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}
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public static Db_qry_update update_common_(String tbl, Criteria crt, Keyval... pairs) {
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Db_qry_update cmd = new Db_qry_update();
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cmd.From_(tbl); cmd.Where_(crt);
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for (Keyval pair : pairs)
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cmd.Val_obj(pair.Key(), pair.Val());
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return cmd;
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}
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public static gplx.core.gfo_ndes.GfoNde Exec_as_nde(Db_conn conn, Db_qry qry) {return gplx.core.gfo_ndes.GfoNde_.rdr_(conn.Exec_qry_as_old_rdr(qry));}
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public static Object Exec_as_obj(Db_conn conn, Db_qry__select_cmd qry) {
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gplx.core.stores.DataRdr rdr = conn.Exec_qry_as_old_rdr(qry);
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try {
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return rdr.MoveNextPeer() ? rdr.Read(qry.Cols().Flds.Get_at(0).Fld) : null; // NOTE: need to access from flds for tdb
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} finally {rdr.Rls();}
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}
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public static Db_qry as_(Object obj) {return obj instanceof Db_qry ? (Db_qry)obj : null;}
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public static final Db_qry Noop = new Db_qry__noop();
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public static final int Tid_insert = 0, Tid_delete = 1, Tid_update = 2, Tid_select = 3, Tid_sql = 4, Tid_select_in_tbl = 5, Tid_flush = 6, Tid_noop = 7;
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}
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