// $Header: /home/cvsroot/yaz++/zoom/master-header,v 1.1 2002-08-08 13:31:54 mike Exp $
//
// ZOOM C++ Binding.
// The ZOOM homepage is at http://zoom.z3950.org/
//
// Derived from version 1.0g at
//	http://zoom.z3950.org/bind/cplusplus/zoom-1.0g.hh

#include <stddef.h>		// for size_t

*/*
* * This is a bit stupid.  The fact that our ZOOM-C++ implementation is
* * based on the ZOOM-C implementation is our Dirty Little Secret, and
* * there is in principle no reason why client code need be bothered
* * with it.  Except of course that the public class declarations in
* * C++ have to lay their private parts out for the world to see
* * (oo-er).  Hence the inclusion of <yaz/zoom.h>
* */
*#include <yaz/zoom.h>
*
namespace ZOOM {
  // Forward declarations for type names.
  class query;
  class resultSet;
  class record;

  const char *option (const char *key);
  const char *option (const char *key, const char *val);
  int errcode ();
  char *errmsg ();
  char *addinfo ();

  class connection {
*   ZOOM_connection c;
  public:
    connection (const char *hostname, int portnum);
    // ### I would like to add a ``throw (ZOOM::error)'' clause
    // here, but it looks like G++ 2.95.2 doesn't recognise it.
    ~connection ();
    const char *option (const char *key) const;
    const char *option (const char *key, const char *val);
*   ZOOM_connection _getYazConnection() const { return c; } // package-private
  };

  class query {
      // pure virtual class: derive concrete subclasses from it.
* protected:
*   ZOOM_query q;
  public:
    virtual ~query ();
*   ZOOM_query _getYazQuery() const { return q; } // package-private
  };

  class prefixQuery : public query {
  public:
    prefixQuery (const char *pqn);
    ~prefixQuery();
  };

  class CCLQuery : public query {
  public:
    CCLQuery (const char *ccl, void *qualset);
    ~CCLQuery();
  };

  class resultSet {
*   connection &owner;
*   ZOOM_resultset rs;
  public:
    resultSet (connection &c, const query &q);
    ~resultSet ();
    const char *option (const char *key) const;
    const char *option (const char *key, const char *val);
    size_t size () const;
    const record *getRecord (size_t i) const;
  };

  class record {
*   const resultSet *owner;
*   ZOOM_record r;
  public:
*   record::record(const resultSet *rs, ZOOM_record rec):
*	owner(rs), r(rec) {}
    ~record ();
    enum syntax {
      UNKNOWN, GRS1, SUTRS, USMARC, UKMARC, XML
    };
    record *clone () const;
    syntax recsyn () const;
    const char *render () const;
    const char *rawdata () const;
  };

  class error {
* protected:
*   int code;
  public:
    error (int code);
    int errcode () const;
    const char *errmsg () const;
  };

  class systemError: public error {
  public:
    systemError ();
    int errcode () const;
    const char *errmsg () const;
  };

  class bib1Error: public error {
*   const char *info;
  public:
*   ~bib1Error();
    bib1Error (int errcode, const char *addinfo);
    int errcode () const;
    const char *errmsg () const;
    const char *addinfo () const;
  };

  class queryError: public error {
*   const char *q;
  public:
*   ~queryError();
    static const int PREFIX = 1;
    static const int CCL = 2;
    queryError (int qtype, const char *source);
    int errcode () const;
    const char *errmsg () const;
    const char *addinfo () const;
  };
}