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47 lines
2.1 KiB
Java
47 lines
2.1 KiB
Java
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012-2017 gnosygnu@gmail.com
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XOWA is licensed under the terms of the General Public License (GPL) Version 3,
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or alternatively under the terms of the Apache License Version 2.0.
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You may use XOWA according to either of these licenses as is most appropriate
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for your project on a case-by-case basis.
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The terms of each license can be found in the source code repository:
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GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
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Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
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*/
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package gplx.dbs; import gplx.*;
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public class Db_stmt_bldr {
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private Db_conn conn; private Db_stmt create, update, delete;
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private String tbl_name; private String[] flds_keys, flds_vals, flds_all;
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public void Conn_(Db_conn v, String tbl_name, Dbmeta_fld_list flds, String... flds_keys) {
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Conn_(v, tbl_name, flds.To_str_ary(), flds.To_str_ary_exclude(flds_keys), flds_keys);
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}
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public void Conn_(Db_conn v, String tbl_name, String[] flds_vals, String... flds_keys) {
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Conn_(v, tbl_name, String_.Ary_add(flds_keys, flds_vals), flds_vals, flds_keys);
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}
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private void Conn_(Db_conn v, String tbl_name, String[] flds_all, String[] flds_vals, String... flds_keys) {
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this.conn = v; this.tbl_name = tbl_name;
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this.flds_all = flds_all; this.flds_vals = flds_vals; this.flds_keys = flds_keys;
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}
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public Db_stmt Get(byte cmd_mode) {
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switch (cmd_mode) {
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case Db_cmd_mode.Tid_create: if (create == null) create = conn.Stmt_insert(tbl_name, flds_all); return create;
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case Db_cmd_mode.Tid_update: if (update == null) update = conn.Stmt_update(tbl_name, flds_keys, flds_vals); return update;
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case Db_cmd_mode.Tid_delete: if (delete == null) delete = conn.Stmt_delete(tbl_name, flds_keys); return delete;
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case Db_cmd_mode.Tid_ignore: return Db_stmt_.Null;
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default: throw Err_.new_unhandled(cmd_mode);
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}
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}
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public void Batch_bgn() {conn.Txn_bgn(tbl_name);}
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public void Batch_end() {conn.Txn_end();}
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public void Rls() {
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create = Db_stmt_.Rls(create);
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update = Db_stmt_.Rls(update);
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delete = Db_stmt_.Rls(delete);
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}
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}
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