PerfectHashTableEntryInfo Class Reference

#include <PerfectHashTable.h>

Inheritance diagram for PerfectHashTableEntryInfo:

Collaboration diagram for PerfectHashTableEntryInfo:

Public Member Functions
	PerfectHashTableEntryInfo (size_t num_hash_entries, size_t num_keys, size_t rowid_size_in_bytes, HashType layout, bool for_window_framing=false)
size_t	computeTotalNumSlots () const override
size_t	computeHashTableSize () const override
Public Member Functions inherited from HashTableEntryInfo
	HashTableEntryInfo (size_t num_hash_entries, size_t num_keys, size_t rowid_size_in_bytes, HashType layout, bool for_window_framing=false)
size_t	getNumHashEntries () const
size_t	getNumKeys () const
size_t	getRowIdSizeInBytes () const
HashType	getHashTableLayout () const
void	setNumHashEntries (size_t num_hash_entries)
void	setNumKeys (size_t num_keys)
void	setRowIdSizeInBytes (size_t rowid_size_in_bytes)
void	setHashTableLayout (HashType layout)
bool	forWindowFraming () const

Additional Inherited Members
Protected Attributes inherited from HashTableEntryInfo
size_t	num_hash_entries_
size_t	num_keys_
size_t	rowid_size_in_bytes_
HashType	layout_
bool	for_window_framing_

Detailed Description

Definition at line 26 of file PerfectHashTable.h.

Constructor & Destructor Documentation

PerfectHashTableEntryInfo::PerfectHashTableEntryInfo ( size_t  num_hash_entries, size_t  num_keys, size_t  rowid_size_in_bytes, HashType  layout, bool  for_window_framing = false  )

inline

Definition at line 28 of file PerfectHashTable.h.

      : HashTableEntryInfo(num_hash_entries,
                           num_keys,
                           rowid_size_in_bytes,
                           layout,
                           for_window_framing) {}

Member Function Documentation

size_t PerfectHashTableEntryInfo::computeHashTableSize ( ) const

inlineoverridevirtual

Implements HashTableEntryInfo.

Definition at line 45 of file PerfectHashTable.h.

References computeTotalNumSlots(), and HashTableEntryInfo::rowid_size_in_bytes_.

Referenced by PerfectHashTable::getHashTableBufferSize(), and PerfectHashTable::printInitLog().

                                               {
    return computeTotalNumSlots() * rowid_size_in_bytes_;
  }

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size_t PerfectHashTableEntryInfo::computeTotalNumSlots ( ) const

inlineoverridevirtual

Implements HashTableEntryInfo.

Definition at line 39 of file PerfectHashTable.h.

References HashTableEntryInfo::for_window_framing_, HashTableEntryInfo::layout_, HashTableEntryInfo::num_hash_entries_, HashTableEntryInfo::num_keys_, and OneToOne.

Referenced by computeHashTableSize(), and PerfectHashTable::PerfectHashTable().

                                               {
    return layout_ == HashType::OneToOne
               ? num_hash_entries_
               : (2 * num_hash_entries_) + ((1 + for_window_framing_) * num_keys_);
  }

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/JoinHashTable/PerfectHashTable.h