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48 lines
2.7 KiB
48 lines
2.7 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.engines.nulls; import gplx.*; import gplx.dbs.*; import gplx.dbs.engines.*;
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import gplx.core.stores.*; import gplx.dbs.metas.*; import gplx.dbs.sqls.*;
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public class Noop_engine implements Db_engine {
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public String Tid() {return Noop_conn_info.Tid_const;}
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public Db_conn_info Conn_info() {return Db_conn_info_.Null;}
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public Sql_qry_wtr Sql_wtr() {return sql_wtr;} private final Sql_qry_wtr sql_wtr = Sql_qry_wtr_.Basic;
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public void Conn_open() {}
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public void Conn_term() {}
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public Db_engine New_clone(Db_conn_info url) {return this;}
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public Db_rdr New_rdr__rls_manual (Object rdr_obj, String sql) {return Db_rdr_.Empty;}
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public Db_rdr New_rdr__rls_auto (Db_stmt stmt, Object rdr_obj, String sql) {return Db_rdr_.Empty;}
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public Db_stmt New_stmt_prep(Db_qry qry) {return Db_stmt_.Null;}
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public Object New_stmt_prep_as_obj(String sql) {throw Err_.new_unimplemented();}
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public DataRdr New_rdr(java.sql.ResultSet rdr, String sql) {return DataRdr_.Null;}
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public void Txn_bgn(String name) {}
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public String Txn_end() {return "";}
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public void Txn_cxl() {}
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public void Txn_sav() {}
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public Object Exec_as_obj(Db_qry cmd) {return cmd.Exec_is_rdr() ? (Object)DataRdr_.Null : -1;}
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public void Ddl_create_tbl(Dbmeta_tbl_itm meta) {}
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public void Ddl_create_idx(Gfo_usr_dlg usr_dlg, Dbmeta_idx_itm... ary) {}
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public void Ddl_append_fld(String tbl, Dbmeta_fld_itm fld) {}
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public void Ddl_delete_tbl(String tbl) {}
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public void Env_db_attach(String alias, Io_url db_url) {}
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public void Env_db_detach(String alias) {}
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public boolean Meta_tbl_exists(String tbl) {return false;}
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public boolean Meta_fld_exists(String tbl, String fld) {return false;}
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public Dbmeta_tbl_mgr Meta_tbl_load_all() {return meta_tbl_mgr;} private final Dbmeta_tbl_mgr meta_tbl_mgr = new Dbmeta_tbl_mgr();
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public static final Noop_engine Instance = new Noop_engine(); Noop_engine() {}
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}
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