mirror of https://github.com/gnosygnu/xowa
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
4.4 KiB
94 lines
4.4 KiB
/*
|
|
XOWA: the XOWA Offline Wiki Application
|
|
Copyright (C) 2012 gnosygnu@gmail.com
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as
|
|
published by the Free Software Foundation, either version 3 of the
|
|
License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
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.stores.*; import gplx.dbs.metas.*;
|
|
import gplx.dbs.qrys.*; import gplx.dbs.sqls.*;
|
|
public class TdbEngine implements Db_engine {
|
|
public String Tid() {return Tdb_conn_info.Tid_const;}
|
|
public Db_conn_info Conn_info() {return conn_info;} private Db_conn_info conn_info;
|
|
public Sql_qry_wtr Sql_wtr() {return sql_wtr;} private final Sql_qry_wtr sql_wtr = Sql_qry_wtr_.Basic;
|
|
public TdbDatabase Db() {return db;} TdbDatabase db;
|
|
public void Conn_open() {
|
|
Tdb_conn_info tdb_url = (Tdb_conn_info)conn_info;
|
|
String url_str = tdb_url.Server();
|
|
db = loadMgr.LoadTbls(Io_url_.new_any_(url_str));
|
|
}
|
|
public void Conn_term() {}
|
|
public void Txn_bgn(String name) {}
|
|
public String Txn_end() {return "";}
|
|
public void Txn_cxl() {}
|
|
public void Txn_sav() {}
|
|
public Db_engine New_clone(Db_conn_info conn_info) {
|
|
TdbEngine rv = new TdbEngine();
|
|
rv.CtorTdbEngine(conn_info);
|
|
rv.Conn_open();
|
|
return rv;
|
|
}
|
|
public Object Exec_as_obj(Db_qry qry) {
|
|
Db_qryWkr wkr = (Db_qryWkr)wkrs.Get_by_or_fail(qry.Tid());
|
|
return wkr.Exec(this, qry);
|
|
}
|
|
public Db_stmt New_stmt_prep(Db_qry qry) {return new Db_stmt_sql().Parse(qry, Sql_qry_wtr_.Basic.To_sql_str(qry, true));}
|
|
public Object New_stmt_prep_as_obj(String sql) {throw Err_.new_unimplemented();}
|
|
public Db_rdr New_rdr__rls_manual(Object rdr_obj, String sql) {return Db_rdr_.Empty;}
|
|
public Db_rdr New_rdr__rls_auto(Db_stmt stmt, Object rdr_obj, String sql) {return Db_rdr_.Empty;}
|
|
public DataRdr New_rdr(java.sql.ResultSet rdr, String sql) {return DataRdr_.Null;}
|
|
public TdbTable FetchTbl(String name) {
|
|
TdbTable tbl = db.Tables().Get_by_or_fail(name);
|
|
if (!tbl.IsLoaded()) loadMgr.LoadTbl(db, tbl);
|
|
return tbl;
|
|
}
|
|
public void FlushAll() {
|
|
saveMgr.SaveDb(db);
|
|
}
|
|
public void FlushTbl(TdbTable tbl) {
|
|
saveMgr.SaveFile(db, tbl.File());
|
|
}
|
|
public void Ddl_create_tbl(Dbmeta_tbl_itm meta) {throw Err_.new_unimplemented();}
|
|
public void Ddl_create_idx(Gfo_usr_dlg usr_dlg, Dbmeta_idx_itm... ary) {throw Err_.new_unimplemented();}
|
|
public void Ddl_append_fld(String tbl, Dbmeta_fld_itm fld) {throw Err_.new_unimplemented();}
|
|
public void Ddl_delete_tbl(String tbl) {}
|
|
public void Env_db_attach(String alias, Io_url db_url) {}
|
|
public void Env_db_detach(String alias) {}
|
|
public boolean Meta_tbl_exists(String name) {return false;}
|
|
public boolean Meta_fld_exists(String tbl, String fld) {return false;}
|
|
public Dbmeta_tbl_mgr Meta_tbl_load_all() {return meta_tbl_mgr;} private final Dbmeta_tbl_mgr meta_tbl_mgr = new Dbmeta_tbl_mgr();
|
|
|
|
Hash_adp wkrs = Hash_adp_.new_(); TdbDbLoadMgr loadMgr = TdbDbLoadMgr.new_(); TdbDbSaveMgr saveMgr = TdbDbSaveMgr.new_();
|
|
public static final TdbEngine Instance = new TdbEngine();
|
|
void CtorTdbEngine(Db_conn_info conn_info) {
|
|
this.conn_info = conn_info;
|
|
wkrs.Add(Db_qry_.Tid_select, TdbSelectWkr.Instance);
|
|
wkrs.Add(Db_qry_.Tid_insert, TdbInsertWkr.new_());
|
|
wkrs.Add(Db_qry_.Tid_update, TdbUpdateWkr.new_());
|
|
wkrs.Add(Db_qry_.Tid_delete, TdbDeleteWkr.new_());
|
|
wkrs.Add(Db_qry_.Tid_flush, TdbFlushWkr.new_());
|
|
}
|
|
public static TdbEngine as_(Object obj) {return obj instanceof TdbEngine ? (TdbEngine)obj : null;}
|
|
public static TdbEngine cast(Object obj) {try {return (TdbEngine)obj;} catch(Exception exc) {throw Err_.new_type_mismatch_w_exc(exc, TdbEngine.class, obj);}}
|
|
}
|
|
interface Db_qryWkr {
|
|
Object Exec(Db_engine engine, Db_qry cmd);
|
|
}
|
|
class Db_qryWkr_ {
|
|
public static final Db_qryWkr Null = new Db_qryWrk_null();
|
|
}
|
|
class Db_qryWrk_null implements Db_qryWkr {
|
|
public Object Exec(Db_engine engine, Db_qry cmd) {return null;}
|
|
}
|