parser3/src/sql/pa_sql_driver.h - diff

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Diff for /parser3/src/sql/pa_sql_driver.h between versions 1.26 and 1.30

-version 1.26, 2002/02/08 08:30:17
+version 1.30, 2002/12/09 11:11:33
  Line 4
          Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
          Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
-         $Id$
          driver dynamic library must look like this:
          @code
- Line 28
+ Line 26
  #ifndef PA_SQL_DRIVER_H
  #define PA_SQL_DRIVER_H
+ static const char* IDENT_SQL_DRIVER_H="$Date$";
  #include <sys/types.h>
+ #define SQL_DRIVER_API_VERSION 0x0004
+ #define SQL_DRIVER_CREATE create /* used in driver implementation */
+ #define SQL_DRIVER_CREATE_NAME "create" /* could not figure out how to # it :( */
+ /// fields are freed elsewhere
+ class SQL_Exception {
+         friend class SQL_Driver_services_impl;
+         bool fdefined;
+         const char *ftype;
+         const void *fproblem_source;
+         const char *fcomment;
+ public:
+         SQL_Exception():
+                 fdefined(false) {}
+         SQL_Exception(
+                 const char *atype,
+                 const void *aproblem_source,
+                 const char *acomment):
+                 fdefined(true),
+                 ftype(atype),
+                 fproblem_source(aproblem_source),
+                 fcomment(acomment) {}
+         SQL_Exception(const char *acomment):
+                 fdefined(true),
+                 ftype(0),
+                 fproblem_source(0),
+                 fcomment(acomment) {}
+ /*
+         SQL_Exception(const SQL_Exception& src) :
+                 fdefined(src.fdefined),
+                 ftype(src.ftype),
+                 fproblem_source(src.fproblem_source),
+                 fcomment(src.fcomment) {}
+ */
+         const SQL_Exception& operator =(const SQL_Exception& src) {
+                 fdefined=src.fdefined;
+                 ftype=src.ftype;
+                 fproblem_source=src.fproblem_source;
+                 fcomment=src.fcomment;
+                 return *this;
+         }
+         bool defined() { return fdefined; }
+         const char *type() { return ftype; }
+         const void *problem_source() { return fproblem_source; }
+         const char *comment() { return fcomment; }
+ };
  /// service functions for SQL driver to use
  class SQL_Driver_services {
  public:
- Line 38  public:
+ Line 87  public:
          /// allocates some bytes clearing them with zeros
          virtual void *calloc(size_t size) =0;
          /// prepare throw exception
-         virtual void _throw(const char *comment) =0;
+         virtual void _throw(const SQL_Exception& e) =0;
          /// throw C++ exception from prepared
          virtual void propagate_exception() =0;
+         /// helper func
+         void _throw(const char *comment) { _throw(SQL_Exception(0, 0, comment)); }
  public:
          /// regretrully public, because can't make stack frames: "nowhere to return to"
          jmp_buf mark;
  };
- #define SQL_DRIVER_API_VERSION 0x0003
- #define SQL_DRIVER_CREATE create /* used in driver implementation */
- #define SQL_DRIVER_CREATE_NAME "create" /* could not figure out how to # it :( */
  /// events, occuring when SQL_Driver::query()-ing
  class SQL_Driver_query_event_handlers {
  public:

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Removed from v.1.26
changed lines
	Added in v.1.30