82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/*-------------------------------------------------------------------------
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*
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* pgdatabase.h
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*
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*
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* DESCRIPTION
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* Postgres Database Class:
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* Query Postgres backend to obtain query results
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*
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* NOTES
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* Currently under construction.
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*
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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*
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* $Id: pgdatabase.h,v 1.8 2000/04/22 22:39:15 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PGDATABASE_H
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#define PGDATABASE_H
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#ifndef PGCONNECTION_H
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#include "pgconnection.h"
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#endif
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// ****************************************************************
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//
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// PgDatabase - a class for accessing databases
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//
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// ****************************************************************
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// This is the basic database access class. Its interface should
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// be used only after a query has been sent to the backend and
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// results are being received.
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class PgDatabase : public PgConnection {
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public:
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// connect to the database with conninfo
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PgDatabase(const char* conninfo) : PgConnection(conninfo) {}
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~PgDatabase() {} // close connection and clean up
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// query result access
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int Tuples();
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int CmdTuples();
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int Fields();
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const char* FieldName(int field_num);
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int FieldNum(const char* field_name);
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Oid FieldType(int field_num);
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Oid FieldType(const char* field_name);
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short FieldSize(int field_num);
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short FieldSize(const char* field_name);
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const char* GetValue(int tup_num, int field_num);
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const char* GetValue(int tup_num, const char* field_name);
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int GetIsNull(int tup_num, int field_num);
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int GetIsNull(int tup_num, const char* field_name);
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int GetLength(int tup_num, int field_num);
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int GetLength(int tup_num, const char* field_name);
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void DisplayTuples(FILE *out = 0, int fillAlign = 1,
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const char* fieldSep = "|",int printHeader = 1, int quiet = 0) ;
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void PrintTuples(FILE *out = 0, int printAttName = 1,
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int terseOutput = 0, int width = 0) ;
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// copy command related access
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int GetLine(char* string, int length);
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void PutLine(const char* string);
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const char* OidStatus();
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int EndCopy();
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protected:
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PgDatabase() : PgConnection() {} // Do not connect
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private:
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// We don't support copying of PgDatabase objects,
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// so make copy constructor and assignment op private.
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PgDatabase(const PgDatabase&);
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PgDatabase& operator= (const PgDatabase&);
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};
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#endif // PGDATABASE_H
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