sql_xa_commit.h

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#ifndef XA_SQL_CMD_XA_COMMIT
#define XA_SQL_CMD_XA_COMMIT
 
#include "sql/sql_cmd.h"                 // Sql_cmd
#include "sql/xa.h"                      // xid_t
#include "sql/xa/sql_xa_second_phase.h"  // Sql_cmd_xa_second_phase
 
/**
  @class Sql_cmd_xa_commit
 
  This class represents the `XA COMMIT ...` SQL statement which commits and
  terminates an XA transaction with the given xid value.
 
  @see Sql_cmd
*/
class Sql_cmd_xa_commit : public Sql_cmd_xa_second_phase {
 public:
  /**
    Class constructor.
 
    @param xid_arg XID of the XA transacation about to be committed
    @param xa_option Additional options for the `XA COMMIT` command
   */
  Sql_cmd_xa_commit(xid_t *xid_arg, enum xa_option_words xa_option);
  virtual ~Sql_cmd_xa_commit() override = default;
 
  /**
    Retrieves the SQL command code for this class, `SQLCOM_XA_COMMIT`.
 
    @see Sql_cmd::sql_command_code
 
    @return The SQL command code for this class, `SQLCOM_XA_COMMIT`.
   */
  enum_sql_command sql_command_code() const override;
  /**
    Executes the SQL command.
 
    @see Sql_cmd::execute
 
    @param thd The `THD` session object within which the command is being
               executed.
 
    @return false if the execution is successful, true otherwise.
   */
  bool execute(THD *thd) override;
  /**
    Retrieves this `XA COMMIT` extra options.
 
    @return The `XA COMMIT` extra options.
   */
  enum xa_option_words get_xa_opt() const;
 
 private:
  /** Options associated with the underlying `XA COMMIT`  */
  enum xa_option_words m_xa_opt;
 
  /**
    Commit and terminate a XA transaction.
 
    @param thd The `THD` session object within which the command is being
               executed.
 
    @retval false  Success
    @retval true   Failure
  */
  bool trans_xa_commit(THD *thd);
  /**
    Handle the statement XA COMMIT for the case when xid corresponds to an
    XA transaction that is attached to the thread's THD object, that is a
    transaction that is part of the current thread's session context.
 
    @param thd The `THD` session object within which the command is being
               executed.
 
    @return  operation result
      @retval false  Success
      @retval true   Failure
  */
  bool process_attached_xa_commit(THD *thd) const;
  /**
    Handle the statement XA COMMIT for the case when xid corresponds to an
    XA transaction that is detached from the thread's THD, that is a
    transaction that isn't part of the current's thread session
    context. When xa_detach_on_prepare is ON (default), this applies to all
    prepared XA transactions. That is, an XA transaction pepared earlier on
    this connection or on amy another connection, either still active or
    already disposed of.
 
    @param thd The `THD` session object within which the command is being
               executed.
 
    @return  operation result
      @retval false  Success
      @retval true   Failure
  */
  bool process_detached_xa_commit(THD *thd);
};
 
#endif  // XA_SQL_CMD_XA_COMMIT