dd_resource_group.h

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#ifndef DD_RESOURCE_GROUP_INCLUDED
#define DD_RESOURCE_GROUP_INCLUDED
 
#include "sql/dd/string_type.h"  // dd::String_type
 
class THD;
namespace resourcegroups {
class Resource_group;
}
namespace dd {
namespace cache {
class Dictionary_client;
}
 
/**
  Check if resource group exists in the data dictionary.
 
  @param          dd_client            Dictionary client.
  @param          resource_group_name  Name of the resource group.
  @param  [out]   exists               Value set to true if DD object found
                                        else false.
  @retval         true                 Failure (error has been reported).
  @retval         false                Success.
*/
 
bool resource_group_exists(dd::cache::Dictionary_client *dd_client,
                           const String_type &resource_group_name,
                           bool *exists);
 
/**
  Create a DD object and persist it to DD table resourcegroup.
 
  @param  thd          Thread handle.
  @param  res_grp_ref  Reference to resource group.
 
  @retval true  Resource group creation failed.
  @retval false Resource group creation succeeded.
*/
 
bool create_resource_group(THD *thd,
                           const resourcegroups::Resource_group &res_grp_ref);
 
/**
  Update a resource group and persist it to DD table resourcegroup.
 
  @param thd                 Thread handle
  @param resource_grp_name   Name of the resource group.
  @param res_grp_ref         Reference to resource group.
 
  @retval true   Updating Resource group failed.
  @retval false  Updating Resource group succeeded.
*/
 
bool update_resource_group(THD *thd, const String_type &resource_grp_name,
                           const resourcegroups::Resource_group &res_grp_ref);
 
/**
  Drop a resource group from DD table resourcegroup.
 
  @param thd                 Thread handle.
  @param resource_grp_name   Name of resource group to be dropped.
 
  @retval true  if resource group drop failed.
  @retval false if resource group drop succeeded.
*/
 
bool drop_resource_group(THD *thd, const String_type resource_grp_name);
}  // namespace dd
#endif  // DD_RESOURCE_GROUP_INCLUDED