partition.h

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/* Copyright (c) 2014, 2023, Oracle and/or its affiliates.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef DD__PARTITION_INCLUDED
#define DD__PARTITION_INCLUDED
 
#include "my_inttypes.h"
#include "sql/dd/sdi_fwd.h"              // dd::Sdi_wcontext
#include "sql/dd/types/entity_object.h"  // dd::Entity_object
#include "sql/dd/types/table.h"          // Table::Partition_collection
 
namespace dd {
 
///////////////////////////////////////////////////////////////////////////
 
class Index;
class Partition_impl;
class Partition_index;
class Partition_value;
class Properties;
class Table;
template <typename T>
class Collection;
 
namespace tables {
class Table_partitions;
}
 
///////////////////////////////////////////////////////////////////////////
 
class Partition : virtual public Entity_object {
 public:
  typedef Collection<Partition_index *> Partition_indexes;
  typedef Collection<Partition_value *> Partition_values;
  typedef Partition_impl Impl;
  typedef tables::Table_partitions DD_table;
 
 public:
  ~Partition() override = default;
 
  /////////////////////////////////////////////////////////////////////////
  // Table.
  /////////////////////////////////////////////////////////////////////////
 
  virtual const Table &table() const = 0;
 
  virtual Table &table() = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // parent_partition_id.
  /////////////////////////////////////////////////////////////////////////
 
  virtual Object_id parent_partition_id() const = 0;
  virtual void set_parent_partition_id(Object_id parent_partition_id) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // number.
  /////////////////////////////////////////////////////////////////////////
 
  virtual uint number() const = 0;
  virtual void set_number(uint number) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // description_utf8.
  /////////////////////////////////////////////////////////////////////////
 
  virtual const String_type &description_utf8() const = 0;
  virtual void set_description_utf8(const String_type &description_utf8) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // engine.
  /////////////////////////////////////////////////////////////////////////
 
  virtual const String_type &engine() const = 0;
  virtual void set_engine(const String_type &engine) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // Comment.
  /////////////////////////////////////////////////////////////////////////
 
  virtual const String_type &comment() const = 0;
  virtual void set_comment(const String_type &comment) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // Options.
  /////////////////////////////////////////////////////////////////////////
 
  virtual const Properties &options() const = 0;
 
  virtual Properties &options() = 0;
  virtual bool set_options(const Properties &options) = 0;
  virtual bool set_options(const String_type &options_raw) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // se_private_data.
  /////////////////////////////////////////////////////////////////////////
 
  virtual const Properties &se_private_data() const = 0;
 
  virtual Properties &se_private_data() = 0;
 
  virtual bool set_se_private_data(const String_type &se_private_data_raw) = 0;
 
  virtual bool set_se_private_data(const Properties &se_private_data) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // se_private_id.
  /////////////////////////////////////////////////////////////////////////
 
  virtual Object_id se_private_id() const = 0;
  virtual void set_se_private_id(Object_id se_private_id) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // Tablespace.
  /////////////////////////////////////////////////////////////////////////
 
  virtual Object_id tablespace_id() const = 0;
  virtual void set_tablespace_id(Object_id tablespace_id) = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // Partition-value collection.
  /////////////////////////////////////////////////////////////////////////
 
  virtual Partition_value *add_value() = 0;
 
  virtual const Partition_values &values() const = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // Partition-index collection.
  /////////////////////////////////////////////////////////////////////////
 
  virtual Partition_index *add_index(Index *idx) = 0;
 
  virtual const Partition_indexes &indexes() const = 0;
 
  virtual Partition_indexes *indexes() = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // Sub Partition collection.
  /////////////////////////////////////////////////////////////////////////
 
  /// Add a subpartition to a parent partition.
  virtual Partition *add_subpartition() = 0;
 
  /// Return reference to const collection of sub partitions.
  virtual const Table::Partition_collection &subpartitions() const = 0;
 
  /// Return non-const point to collection of sub partitions.
  virtual Table::Partition_collection *subpartitions() = 0;
 
  /////////////////////////////////////////////////////////////////////////
  // Parent partition for subpartitions (NULL otherwise).
  /////////////////////////////////////////////////////////////////////////
  virtual const Partition *parent() const = 0;
  virtual void set_parent(const Partition *parent) = 0;
 
  /**
    Converts *this into json.
 
    Converts all member variables that are to be included in the sdi
    into json by transforming them appropriately and passing them to
    the rapidjson writer provided.
 
    @param wctx opaque context for data needed by serialization
    @param w rapidjson writer which will perform conversion to json
 
  */
 
  virtual void serialize(Sdi_wcontext *wctx, Sdi_writer *w) const = 0;
 
  /**
    Re-establishes the state of *this by reading sdi information from
    the rapidjson DOM subobject provided.
 
    Cross-references encountered within this object are tracked in
    sdictx, so that they can be updated when the entire object graph
    has been established.
 
    @param rctx stores book-keeping information for the
    deserialization process
    @param val subobject of rapidjson DOM containing json
    representation of this object
  */
 
  virtual bool deserialize(Sdi_rcontext *rctx, const RJ_Value &val) = 0;
};
 
///////////////////////////////////////////////////////////////////////////
 
}  // namespace dd
 
#endif  // DD__PARTITION_INCLUDED