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69 lines
3.0 KiB
Java
69 lines
3.0 KiB
Java
/*
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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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class TdbEngine implements Db_engine {
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public String Key() {return KeyDef;} public static final String KeyDef = "tdb";
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public Db_conn_info Conn_info() {return conn_info;} Db_conn_info conn_info;
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public TdbDatabase Db() {return db;} TdbDatabase db;
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public void Conn_open() {
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String urlStr = (String)conn_info.Server();
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db = loadMgr.LoadTbls(Io_url_.new_any_(urlStr));
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}
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public void Conn_term() {}
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public void Txn_bgn() {}
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public void Txn_end() {}
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public Db_engine Make_new(Db_conn_info conn_info) {
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TdbEngine rv = new TdbEngine();
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rv.CtorTdbEngine(conn_info);
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return rv;
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}
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public Object Execute(Db_qry cmd) {
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Db_qryWkr wkr = (Db_qryWkr)wkrs.FetchOrFail(cmd.KeyOfDb_qry());
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return wkr.Exec(this, cmd);
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}
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public DataRdr NewDataRdr(java.sql.ResultSet rdr, String sql) {return DataRdr_.Null;}
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public Db_stmt New_db_stmt(Db_provider provider, Db_qry qry) {return new Db_stmt_sql().Parse(Sql_cmd_wtr_.Ansi.XtoSqlQry(qry, true));}
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public Object New_db_cmd(String sql) {throw Err_.not_implemented_();}
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public Db_rdr New_db_rdr(Object o, String sql) {return Db_rdr_.Null;}
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public TdbTable FetchTbl(String name) {
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TdbTable tbl = db.Tables().FetchOrFail(name);
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if (!tbl.IsLoaded()) loadMgr.LoadTbl(db, tbl);
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return tbl;
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}
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public void FlushAll() {
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saveMgr.SaveDb(db);
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}
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public void FlushTbl(TdbTable tbl) {
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saveMgr.SaveFile(db, tbl.File());
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}
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HashAdp wkrs = HashAdp_.new_(); TdbDbLoadMgr loadMgr = TdbDbLoadMgr.new_(); TdbDbSaveMgr saveMgr = TdbDbSaveMgr.new_();
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@gplx.Internal protected static final TdbEngine _ = new TdbEngine();
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//TdbEngine() {this.conn_info = TdbConnectUrl._;}
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void CtorTdbEngine(Db_conn_info conn_info) {
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this.conn_info = conn_info;
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wkrs.Add(Db_qry_select.KeyConst, TdbSelectWkr._);
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wkrs.Add(Db_qry_insert.KeyConst, TdbInsertWkr.new_());
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wkrs.Add(Db_qry_update.KeyConst, TdbUpdateWkr.new_());
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wkrs.Add(Db_qry_delete.KeyConst, TdbDeleteWkr.new_());
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wkrs.Add(Db_qry_flush.KeyConst, TdbFlushWkr.new_());
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}
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public static TdbEngine as_(Object obj) {return obj instanceof TdbEngine ? (TdbEngine)obj : null;}
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public static TdbEngine cast_(Object obj) {try {return (TdbEngine)obj;} catch(Exception exc) {throw Err_.type_mismatch_exc_(exc, TdbEngine.class, obj);}}
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}
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