containers.h

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/** @file storage/temptable/include/temptable/containers.h
TempTable index containers declarations. */
 
#ifndef TEMPTABLE_CONTAINERS_H
#define TEMPTABLE_CONTAINERS_H
 
#include <set>           /* std::multiset */
#include <type_traits>   /* std::is_same */
#include <unordered_set> /* std::unordered_set, std::unordered_multiset */
 
#include "storage/temptable/include/temptable/allocator.h" /* temptable::Allocator */
#include "storage/temptable/include/temptable/indexed_cells.h" /* temptable::Indexed_cells */
 
namespace temptable {
 
/** The container used by tree unique and non-unique indexes. */
typedef std::multiset<Indexed_cells, Indexed_cells_less,
                      Allocator<Indexed_cells>>
    Tree_container;
 
/** The container used by hash non-unique indexes. */
typedef std::unordered_multiset<Indexed_cells, Indexed_cells_hash,
                                Indexed_cells_equal_to,
                                Allocator<Indexed_cells>>
    Hash_duplicates_container;
 
/** The container used by hash unique indexes. */
typedef std::unordered_set<Indexed_cells, Indexed_cells_hash,
                           Indexed_cells_equal_to, Allocator<Indexed_cells>>
    Hash_unique_container;
 
static_assert(
    std::is_same<Hash_duplicates_container::const_iterator,
                 Hash_unique_container::const_iterator>::value,
    "Duplicates and unique hash tables must have the same iterator type.");
 
} /* namespace temptable */
 
#endif /* TEMPTABLE_CONTAINERS_H */