// $Header: /home/cvsroot/yaz++/zoom/master-header,v 1.6 2002-10-30 10:03:52 adam 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 YAZ_EXPORT query;
  class YAZ_EXPORT resultSet;
  class YAZ_EXPORT record;

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

  class YAZ_EXPORT connection {
*   ZOOM_connection c;
*   friend class resultSet; // so it can use _getYazConnection()
*   ZOOM_connection _getYazConnection () const { return c; }
  public:
    connection (const char *hostname, int portnum);
    ~connection ();
    const char *option (const char *key) const;
    const char *option (const char *key, const char *val);
  };

  class query {
      // pure virtual class: derive concrete subclasses from it.
*   friend class resultSet; // so it can use _getYazQuery()
*   ZOOM_query _getYazQuery () const { return q; }
* protected:
*   ZOOM_query q;
  public:
    virtual ~query ();
  };

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

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

  class YAZ_EXPORT 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 YAZ_EXPORT record {
*   const resultSet *owner;
*   ZOOM_record r;
*   friend class resultSet; // so it can use this constructor
*   record::record (const resultSet *rs, ZOOM_record rec):
*	owner (rs), r (rec) {}
  public:
    ~record ();
    enum syntax {
      UNKNOWN, GRS1, SUTRS, USMARC, UKMARC, XML
    };
    record *clone () const;
    syntax recsyn () const;
    const char *render () const;
    const char *rawdata () const;
  };

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

  class YAZ_EXPORT systemException: public exception {
  public:
    systemException ();
    int errcode () const;
    const char *errmsg () const;
  };

  class YAZ_EXPORT bib1Exception: public exception {
*   const char *info;
  public:
*   ~bib1Exception ();
    bib1Exception (int errcode, const char *addinfo);
    int errcode () const;
    const char *errmsg () const;
    const char *addinfo () const;
  };

  class YAZ_EXPORT queryException: public exception {
*   const char *q;
  public:
*   ~queryException ();
    enum {
     PREFIX = 1,
     CCL = 2
    };
    queryException (int qtype, const char *source);
    int errcode () const;
    const char *errmsg () const;
    const char *addinfo () const;
  };
}