Database.h

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/////////////////////////////////////////////////////////////////////////////
//
// This code was automatically generated by the joedb compiler
// https://www.joedb.org/
//
// Path to compiler: /home/rcoulom/repos/joedb/doc/source/tutorial/build/joedbc
// Version: 10.4.3
// joedbc compilation time: Jul 14 2026 13:07:22
// Generation of this file: 2026-07-14 11:07:28 GMT
//
/////////////////////////////////////////////////////////////////////////////
#ifndef joedb_db_encoded_file_Database_declared
#define joedb_db_encoded_file_Database_declared
 
#include "joedb/Freedom_Keeper.h"
#include "joedb/error/Exception.h"
#include "joedb/error/assert.h"
#include "joedb/get_version.h"
#include "joedb/hash_combine.h"
#include "ids.h"
 
#include <string>
#include <cstring>
#include <vector>
#include <algorithm>
#include <string_view>
 
#include "joedb/Blob.h"
 
static_assert(std::string_view(joedb::get_version()) == "10.4.3");
 
namespace joedb::db::encoded_file
{
 /// @namespace joedb::db::encoded_file
 ///
 /// Automatically generated by joedbc
 
 using joedb::Record_Id;
 using joedb::Table_Id;
 using joedb::Field_Id;
 
 class container_of_buffer;
 
 
 namespace detail
 {
  struct data_of_buffer
  {
   std::vector<joedb::Blob> field_value_of_data;
   std::vector<int64_t> field_value_of_size;
   std::vector<int64_t> field_value_of_offset;
 
   joedb::Freedom_Keeper freedom_keeper;
 
   size_t size() const {return freedom_keeper.size();}
 
   void resize(size_t new_size)
   {
    field_value_of_data.resize(new_size);
    field_value_of_size.resize(new_size);
    field_value_of_offset.resize(new_size);
    freedom_keeper.resize(new_size);
   }
  };
 }
 
 
 /// Store all the tables of the database
 class Database
 {
  friend class Readable;
  friend class container_of_buffer;
 
  public:
   template<typename E = joedb::Exception>
   static void throw_exception(std::string_view message)
   {
    std::string s("joedb::db::encoded_file: ");
    s += message;
    throw E(s);
   }
 
   bool is_valid(id_of_buffer id) const {return is_valid_record_id_for_buffer(id.get_record_id());}
 
  protected:
   detail::data_of_buffer storage_of_buffer;
   bool is_valid_record_id_for_buffer(Record_Id record_id) const {return storage_of_buffer.freedom_keeper.is_used(record_id);}
 
   void internal_delete_buffer(Record_Id record_id)
   {
    JOEDB_RELEASE_ASSERT(is_valid_record_id_for_buffer(record_id));
    storage_of_buffer.field_value_of_data[to_underlying(record_id)] = joedb::Blob();
    storage_of_buffer.field_value_of_size[to_underlying(record_id)] = 0;
    storage_of_buffer.field_value_of_offset[to_underlying(record_id)] = 0;
    storage_of_buffer.freedom_keeper.free(record_id);
   }
 
   void internal_insert_buffer(Record_Id record_id)
   {
    storage_of_buffer.freedom_keeper.use(record_id);
   }
 
   void internal_vector_insert_buffer(Record_Id record_id, size_t size)
   {
    JOEDB_RELEASE_ASSERT(storage_of_buffer.freedom_keeper.is_free_vector(record_id, size));
    storage_of_buffer.freedom_keeper.use_vector(record_id, size);
   }
 
   void internal_update_buffer__data
   (
    Record_Id record_id,
    joedb::Blob field_value_of_data
   )
   {
    JOEDB_RELEASE_ASSERT(is_valid_record_id_for_buffer(record_id));
    storage_of_buffer.field_value_of_data[to_underlying(record_id)] = field_value_of_data;
   }
 
   void internal_update_vector_buffer__data
   (
    Record_Id record_id,
    size_t size,
    const joedb::Blob *value
   )
   {
    JOEDB_RELEASE_ASSERT(storage_of_buffer.freedom_keeper.is_used_vector(record_id, size));
    joedb::Blob *target = &storage_of_buffer.field_value_of_data.data()[to_underlying(record_id)];
    if (target != value)
     std::copy_n(value, size, target);
   }
 
   void internal_update_buffer__size
   (
    Record_Id record_id,
    int64_t field_value_of_size
   )
   {
    JOEDB_RELEASE_ASSERT(is_valid_record_id_for_buffer(record_id));
    storage_of_buffer.field_value_of_size[to_underlying(record_id)] = field_value_of_size;
   }
 
   void internal_update_vector_buffer__size
   (
    Record_Id record_id,
    size_t size,
    const int64_t *value
   )
   {
    JOEDB_RELEASE_ASSERT(storage_of_buffer.freedom_keeper.is_used_vector(record_id, size));
    int64_t *target = &storage_of_buffer.field_value_of_size.data()[to_underlying(record_id)];
    if (target != value)
     std::copy_n(value, size, target);
   }
 
   void internal_update_buffer__offset
   (
    Record_Id record_id,
    int64_t field_value_of_offset
   )
   {
    JOEDB_RELEASE_ASSERT(is_valid_record_id_for_buffer(record_id));
    storage_of_buffer.field_value_of_offset[to_underlying(record_id)] = field_value_of_offset;
   }
 
   void internal_update_vector_buffer__offset
   (
    Record_Id record_id,
    size_t size,
    const int64_t *value
   )
   {
    JOEDB_RELEASE_ASSERT(storage_of_buffer.freedom_keeper.is_used_vector(record_id, size));
    int64_t *target = &storage_of_buffer.field_value_of_offset.data()[to_underlying(record_id)];
    if (target != value)
     std::copy_n(value, size, target);
   }
 
  public:
   container_of_buffer get_buffer_table() const;
 
   id_of_buffer next(id_of_buffer id) const
   {
    return id_of_buffer
    (
     Record_Id(storage_of_buffer.freedom_keeper.get_next(id.get_record_id()))
    );
   }
 
   id_of_buffer previous(id_of_buffer id) const
   {
    return id_of_buffer
    (
     Record_Id(storage_of_buffer.freedom_keeper.get_previous(id.get_record_id()))
    );
   }
 
   template<class Comparator>
   std::vector<id_of_buffer> sorted_buffer(Comparator comparator) const;
 
   static id_of_buffer null_buffer()
   {
    return id_of_buffer();
   }
 
   joedb::Blob get_data(id_of_buffer record) const
   {
    JOEDB_RELEASE_ASSERT(is_valid_record_id_for_buffer(record.get_record_id()));
    return (joedb::Blob)(storage_of_buffer.field_value_of_data[record.get_id()]);
   }
 
   int64_t get_size(id_of_buffer record) const
   {
    JOEDB_RELEASE_ASSERT(is_valid_record_id_for_buffer(record.get_record_id()));
    return (int64_t)(storage_of_buffer.field_value_of_size[record.get_id()]);
   }
 
   int64_t get_offset(id_of_buffer record) const
   {
    JOEDB_RELEASE_ASSERT(is_valid_record_id_for_buffer(record.get_record_id()));
    return (int64_t)(storage_of_buffer.field_value_of_offset[record.get_id()]);
   }
 };
 /// returned by @ref Database::get_buffer_table
 class container_of_buffer
 {
  friend class Database;
 
  private:
   const Database &db;
   container_of_buffer(const Database &db): db(db) {}
 
  public:
   class iterator
   {
    friend class container_of_buffer;
    private:
     const joedb::Freedom_Keeper *fk;
     Record_Id index;
     iterator(const detail::data_of_buffer &data): fk(&data.freedom_keeper), index(joedb::Freedom_Keeper_Constants::used_list) {}
    public:
     using iterator_category = std::forward_iterator_tag;
     using value_type = id_of_buffer;
     using difference_type = std::ptrdiff_t;
     using pointer = value_type*;
     using reference = value_type&;
 
     bool operator==(const iterator &i) const {return index == i.index;}
     bool operator!=(const iterator &i) const {return index != i.index;}
     iterator &operator++() {index = fk->get_next(index); return *this;}
     iterator operator++(int) {auto copy = *this; index = fk->get_next(index); return copy;}
     iterator &operator--() {index = fk->get_previous(index); return *this;}
     iterator operator--(int) {auto copy = *this; index = fk->get_previous(index); return copy;}
     id_of_buffer operator*() const {return id_of_buffer(Record_Id(index));}
   };
 
   iterator begin() const {return ++iterator(db.storage_of_buffer);}
   iterator end() const {return iterator(db.storage_of_buffer);}
   bool is_empty() const {return db.storage_of_buffer.freedom_keeper.get_used_count() == Record_Id{0};}
   joedb::index_t get_size() const {return to_underlying(db.storage_of_buffer.freedom_keeper.get_used_count());}
   static id_of_buffer get_at(size_t i) {return id_of_buffer(Record_Id(i));}
   bool is_valid_at(size_t i) {return db.storage_of_buffer.freedom_keeper.is_used(Record_Id(i));}
   id_of_buffer first() const {return *begin();}
   id_of_buffer last() const {return *--end();}
   id_of_buffer get_end() const {return *end();}
 };
 
 inline container_of_buffer Database::get_buffer_table() const
 {
  return container_of_buffer(*this);
 }
 
 template<class Comparator>
 std::vector<id_of_buffer> Database::sorted_buffer(Comparator comparator) const
 {
  std::vector<id_of_buffer> result;
  for (auto x: get_buffer_table())
   result.emplace_back(x);
  std::sort(result.begin(), result.end(), comparator);
  return result;
 }
}
 
#endif