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290978fff0
libpq++.h contained copies of the class declarations in the other libpq++ include files, which was bogus enough, but the declarations were not completely in step with the real declarations. Remove these in favor of including the headers with #include. Make PgConnection destructor virtual (not absolutely necessary, but seems like a real good idea considering the number of subclasses derived from it). Give all classes declared private copy constructors and assignment operators, to prevent compiler from thinking it can copy these objects safely.
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
/*-------------------------------------------------------------------------
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*
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* pgcursordb.h
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*
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*
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* DESCRIPTION
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* Postgres Cursor Database Class:
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* Query Postgres backend using a cursor
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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: pgcursordb.h,v 1.5 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 PGCURSORDB_H
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#define PGCURSORDB_H
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#ifndef PGTRANSDB_H
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#include "pgtransdb.h"
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#endif
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// ****************************************************************
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//
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// PgCursor - a class for querying databases using a cursor
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//
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// ****************************************************************
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// This is the database access class that declares a cursor and
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// manipulates data through it. The interface will introduce some
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// ease of use through the methods that will allow cursor specific
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// operations, like fetch, forward, etc.
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class PgCursor : public PgTransaction {
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public:
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PgCursor(const char* conninfo, const char* cursor); // use reasonable & environment defaults
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// connect to the database with given environment and database name
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// PgCursor(const PgConnection&, const char* cursor);
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~PgCursor(); // close connection and clean up
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// Commands associated with cursor interface
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int Declare(const string& query, int binary = 0); // Declare a cursor with given name
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int Fetch(const char* dir = "FORWARD"); // Fetch ALL tuples in given direction
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int Fetch(unsigned num, const char* dir = "FORWARD"); // Fetch specified amount of tuples
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int Close(); // Close the cursor
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// Accessors to the cursor name
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const char* Cursor() const { return pgCursor.c_str(); }
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void Cursor(const string& cursor) { pgCursor = cursor; }
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protected:
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int Fetch(const string& num, const string& dir);
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protected:
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string pgCursor;
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protected:
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PgCursor() : PgTransaction() {} // Do not connect
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private:
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// We don't support copying of PgCursor objects,
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// so make copy constructor and assignment op private.
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PgCursor(const PgCursor&);
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PgCursor& operator= (const PgCursor&);
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}; // End PgCursor Class Declaration
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#endif // PGCURSORDB_H
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