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74 lines
4.3 KiB
74 lines
4.3 KiB
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012-2020 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.engines.mems; 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.*; import gplx.dbs.conn_props.*; import gplx.dbs.qrys.bats.*;
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import gplx.dbs.wkrs.SqlWkrMgr;
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public class Mem_engine implements Db_engine {
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private final Hash_adp tbl_hash = Hash_adp_.New();
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Mem_engine(Db_conn_info conn_info) {
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this.conn_info = conn_info;
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this.qry_runner = new Mem_exec_select(this);
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}
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public String Tid() {return Mem_conn_info.Tid_const;}
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public Db_conn_info Conn_info() {return conn_info;} private Db_conn_info conn_info;
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public Db_conn_props_mgr Props() {return props;} private final Db_conn_props_mgr props = new Db_conn_props_mgr();
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public Db_batch_mgr Batch_mgr() {return batch_mgr;} private final Db_batch_mgr batch_mgr = new Db_batch_mgr();
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public Mem_exec_select Qry_runner() {return qry_runner;} private Mem_exec_select qry_runner;
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public Sql_qry_wtr Sql_wtr() {return sql_wtr;} private final Sql_qry_wtr sql_wtr = Sql_qry_wtr_.New__basic();
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@Override public void CtorConn(SqlWkrMgr wkrMgr) {}
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public Db_engine New_clone(Db_conn_info conn_info) {return new Mem_engine(conn_info);}
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public Db_stmt Stmt_by_qry(Db_qry qry) {return new Mem_stmt(this, qry);}
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public Mem_tbl Tbls__get(String name) {return (Mem_tbl)tbl_hash.Get_by(name);}
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public void Tbls__del(String name) {tbl_hash.Del(name);}
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public void Txn_bgn(String name) {}//++txn_count;} private int txn_count = 0;
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public String Txn_end() {return "";}// --txn_count; return "";}
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public void Txn_cxl() {}//--txn_count;}
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public void Txn_sav() {this.Txn_end(); this.Txn_bgn("");}
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public Object Exec_as_obj(Db_qry qry) {throw Err_.new_unimplemented();}
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public void Conn_open() {}
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public void Conn_term() {
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// if (txn_count != 0) throw Err_.new_wo_type("Conn_term.txns still open", "txn_count", txn_count); // IGNORE: causing test to fails; DATE:2016-03-30
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}
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public Db_rdr Exec_as_rdr__rls_manual(Object rdr_obj, String sql) {throw Err_.new_unimplemented();}
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public Db_rdr Exec_as_rdr__rls_auto(Db_stmt stmt, Object rdr_obj, String sql) {throw Err_.new_unimplemented();}
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public DataRdr New_rdr(java.sql.ResultSet rdr, String sql) {throw Err_.new_unimplemented();}
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public Object Stmt_by_sql(String sql) {throw Err_.new_unimplemented();}
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public void Meta_tbl_create(Dbmeta_tbl_itm meta) {
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Mem_tbl mem_tbl = new Mem_tbl(meta);
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tbl_hash.Add_if_dupe_use_nth(meta.Name(), mem_tbl);
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meta_mgr.Add(meta);
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}
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public void Meta_tbl_delete(String tbl_key) {
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Mem_tbl tbl = (Mem_tbl)tbl_hash.Get_by(tbl_key);
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if (tbl != null) tbl.rows.Clear();
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}
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public void Meta_idx_create(Gfo_usr_dlg usr_dlg, Dbmeta_idx_itm... ary) {} // TODO_OLD: implement unique index
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public void Meta_idx_delete(String idx) {}
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public void Meta_fld_append(String tbl, Dbmeta_fld_itm fld) {}
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public Dbmeta_tbl_mgr Meta_mgr() {return meta_mgr;} private final Dbmeta_tbl_mgr meta_mgr = new Dbmeta_tbl_mgr(Dbmeta_reload_cmd_.Noop);
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public boolean Meta_tbl_exists(String tbl) {return tbl_hash.Has(tbl);}
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public boolean Meta_fld_exists(String tbl, String fld) {
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Mem_tbl mem_tbl = (Mem_tbl)tbl_hash.Get_by(tbl); if (mem_tbl == null) return false;
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return mem_tbl.Meta().Flds().Has(fld);
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}
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public boolean Meta_idx_exists(String idx) {return false;}
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public void Env_db_attach(String alias, Db_conn conn) {}
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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 static final Mem_engine Instance = new Mem_engine(); Mem_engine() {}
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}
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