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[csql.git] / include / SqlGwConnection.h
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1 /***************************************************************************
2 * Copyright (C) 2007 by Prabakaran Thirumalai *
3 * praba_tuty@yahoo.com *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20 #ifndef SQLGWCONNECTION_H
21 #define SQLGWCONNECTION_H
22 #include<CSql.h>
23 #include<AbsSqlConnection.h>
24 #include<AbsSqlConnection.h>
25 #include<SqlFactory.h>
26 #include<Network.h>
28 //List Contains MultiDsn Elements
29 struct MultiDSN
31 char dsn[IDENTIFIER_LENGTH];
32 AbsSqlConnection *adapter;
33 struct MultiDSN *next;
34 bool isConnected;
35 bool toCommit;
38 enum GwHandler
40 NoHandler =0,
41 CSqlHandler = 1,
42 AdapterHandler =2,
43 CSqlAndAdapterHandler =3
46 class DllExport SqlGwConnection : public AbsSqlConnection
48 Connection dummyConn;
49 AbsSqlConnection *adapter;
50 // struct MultiDSN *multiAdapter;
51 bool isCSqlConnected;
52 bool isAdapterConnected;
53 char username[IDENTIFIER_LENGTH];
54 char password[IDENTIFIER_LENGTH];
56 public:
57 static List cacheList;
58 //Head of MultiDsn List
59 struct MultiDSN *multi_adapter_head;
60 int noOfCon;
61 GwHandler txnHdlr;
62 TransSyncMode mode;
63 SqlGwConnection(){innerConn = NULL; mode = OSYNC; multi_adapter_head = NULL; noOfCon = 0; }
64 ~SqlGwConnection();
66 bool isTableCached(char *name);
67 void setTxnHandler(GwHandler hdlr) { txnHdlr = hdlr; }
68 GwHandler getTxnHandler() { return txnHdlr; }
70 DbRetVal connect (char *user, char * pass);
72 DbRetVal disconnect();
74 DbRetVal commit();
76 DbRetVal rollback();
78 DbRetVal beginTrans (IsolationLevel isoLevel, TransSyncMode mode = OSYNC);
80 friend class SqlFactory;
81 bool isCsqlConnected(){ return isCSqlConnected;}
82 bool isAdptConnected(){ return isAdapterConnected;}
83 DbRetVal createAdapters(SqlGwConnection *gateway);
84 void setAdapter(AbsSqlConnection *conn, char *dsn);
85 AbsSqlConnection* getAdapterConnection(char *dsn);
87 DbRetVal connectCSqlIfNotConnected();
88 DbRetVal connectAdapterIfNotConnected();
89 DbRetVal populateCachedTableList();
90 //Note::forced to implement this as it is pure virtual in base class
91 Connection& getConnObject(){ return dummyConn; }
94 #endif