collation_impl.h

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/* Copyright (c) 2014, 2025, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.
 
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   You should have received a copy of the GNU General Public License
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef DD__COLLATION_IMPL_INCLUDED
#define DD__COLLATION_IMPL_INCLUDED
 
#include <stdio.h>
#include <sys/types.h>
#include <new>
 
#include "sql/dd/impl/raw/raw_record.h"
#include "sql/dd/impl/types/entity_object_impl.h"  // dd::Entity_object_impl
#include "sql/dd/impl/types/weak_object_impl.h"
#include "sql/dd/object_id.h"
#include "sql/dd/string_type.h"
#include "sql/dd/types/collation.h"  // dd::Collation
 
namespace dd {
 
///////////////////////////////////////////////////////////////////////////
 
class Object_table;
class Open_dictionary_tables_ctx;
 
///////////////////////////////////////////////////////////////////////////
 
class Collation_impl : public Entity_object_impl, public Collation {
 public:
  Collation_impl()
      : m_is_compiled(false),
        m_sort_length(0),
        m_charset_id(INVALID_OBJECT_ID) {}
 
 public:
  const Object_table &object_table() const override;
 
  static void register_tables(Open_dictionary_tables_ctx *otx);
 
  bool validate() const override;
 
  bool restore_attributes(const Raw_record &r) override;
 
  bool store_attributes(Raw_record *r) override;
 
 public:
  /////////////////////////////////////////////////////////////////////////
  // Character set.
  /////////////////////////////////////////////////////////////////////////
 
  Object_id charset_id() const override { return m_charset_id; }
 
  void set_charset_id(Object_id charset_id) override {
    m_charset_id = charset_id;
  }
 
  /////////////////////////////////////////////////////////////////////////
  // compiled
  /////////////////////////////////////////////////////////////////////////
 
  bool is_compiled() const override { return m_is_compiled; }
 
  virtual void set_is_compiled(bool is_compiled) {
    m_is_compiled = is_compiled;
  }
 
  /////////////////////////////////////////////////////////////////////////
  // sort_length
  /////////////////////////////////////////////////////////////////////////
 
  uint sort_length() const override { return m_sort_length; }
 
  virtual void set_sort_length(uint sort_length) {
    m_sort_length = sort_length;
  }
 
  /////////////////////////////////////////////////////////////////////////
  // pad_attribute
  /////////////////////////////////////////////////////////////////////////
 
  virtual void set_pad_attribute(enum_pad_attribute pad_attribute) {
    assert(pad_attribute != PA_UNDEFINED);
    m_pad_attribute = pad_attribute;
  }
 
  // Fix "inherits ... via dominance" warnings
  Entity_object_impl *impl() override { return Entity_object_impl::impl(); }
  const Entity_object_impl *impl() const override {
    return Entity_object_impl::impl();
  }
  Object_id id() const override { return Entity_object_impl::id(); }
  bool is_persistent() const override {
    return Entity_object_impl::is_persistent();
  }
  const String_type &name() const override {
    return Entity_object_impl::name();
  }
  void set_name(const String_type &name) override {
    Entity_object_impl::set_name(name);
  }
 
 public:
  void debug_print(String_type &outb) const override {
    char outbuf[1024];
    sprintf(outbuf,
            "COLLATION OBJECT: id= {OID: %lld}, name= %s,"
            "charset_id= {OID: %lld}, is_compiled= %d, sort_length= %u",
            id(), name().c_str(), m_charset_id, m_is_compiled, m_sort_length);
    outb = String_type(outbuf);
  }
 
 private:
  // Fields
  bool m_is_compiled{false};
  uint m_sort_length{0};
  enum_pad_attribute m_pad_attribute{PA_UNDEFINED};
 
  // References to other objects
  Object_id m_charset_id;
 
  Collation *clone() const override { return new Collation_impl(*this); }
 
  Collation *clone_dropped_object_placeholder() const override {
    // Play simple. Proper placeholder will take the same memory as clone.
    return clone();
  }
};
 
///////////////////////////////////////////////////////////////////////////
 
}  // namespace dd
 
#endif  // DD__COLLATION_IMPL_INCLUDED