/usr/include/arc/DBInterface.h is in nordugrid-arc-dev 5.4.2-1build1.
This file is owned by root:root, with mode 0o644.
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#ifndef __ARC_DBINTERFACE_H__
#define __ARC_DBINTERFACE_H__
#include <vector>
#include <string>
namespace Arc {
/// Interface for calling database client library.
/** For different types of database client library, different
classes should be implemented by implementing this interface.
\headerfile DBInterface.h arc/DBInterface.h
*/
class Database {
public:
/// Default constructor.
Database() {}
/// Constructor which uses the server's name(or IP address) and port as parameters.
Database(std::string& server, int port) {}
/// Copy constructor.
Database(const Database& other) {}
/// Deconstructor.
virtual ~Database() {}
/// Do connection with database server.
/** @param dbname The database name which will be used.
@param user The username which will be used to access database.
@param password The password which will be used to access database.
*/
virtual bool connect(std::string& dbname, std::string& user,
std::string& password) = 0;
/// Get the connection status.
virtual bool isconnected() const = 0;
/// Close the connection with database server.
virtual void close() = 0;
/// Enable ssl communication for the connection.
/** @param keyfile The location of key file.
@param certfile The location of certificate file.
@param cafile The location of ca file.
@param capath The location of ca directory
*/
virtual bool enable_ssl(const std::string& keyfile = "", const std::string& certfile = "",
const std::string& cafile = "", const std::string& capath = "") = 0;
/// Ask database server to shutdown.
virtual bool shutdown() = 0;
};
typedef std::vector<std::vector<std::string> > QueryArrayResult;
typedef std::vector<std::string> QueryRowResult;
/// Class representing a database query.
/** \headerfile DBInterface.h arc/DBInterface.h */
class Query {
public:
/// Default constructor.
Query() {}
/// Constructor.
/** @param db The database object which will be used by Query class to get
the database connection */
Query(Database *db) {}
//Query(Database* db, const std::string& sqlstr);
/// Deconstructor.
virtual ~Query() {}
/// Get the column number in the query result.
virtual int get_num_colums() = 0;
/// Get the row number in the query result.
virtual int get_num_rows() = 0;
/// Execute the query
/** @param sqlstr The sql sentence used to query */
virtual bool execute(const std::string& sqlstr) = 0;
/// Get the value of one row in the query result
/** @param row_number The number of the row
@return A vector includes all the values in the row */
virtual QueryRowResult get_row(int row_number) const = 0;
/// Get the value of one row in the query result.
/** The row number will be automatically increased each time the method is
called. */
virtual QueryRowResult get_row() const = 0;
/// Get the value of one specific field in one specific row
/** @param row_number The row number inside the query result
@param field_name The field name for the value which will be return
@return The value of the specified filed in the specified row
*/
virtual std::string get_row_field(int row_number, std::string& field_name) = 0;
/// Query the database by using some parameters into sql sentence
/** An example sentence: "select table.value from table where table.name = ?"
@param sqlstr The sql sentence with some parameters marked with "?".
@param result The result in an array which includes all of the value
in query result.
@param arguments The argument list which should exactly correspond with
the parameters in the sql sentence.
*/
virtual bool get_array(std::string& sqlstr, QueryArrayResult& result, std::vector<std::string>& arguments) = 0;
};
} // namespace Arc
#endif /* __ARC_DBINTERFACE_H__ */
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