C# Класс Majestic12.FastHash

FastHash: class provides fast look ups at the expense of memory (at least 128k per object). Its designed primarily for those hashes where majority of lookups are unsuccessful (ie object is not present) Status of this work is EXPERIMENTAL, do not make any untested assumptions. History: 15/12/06 Added range check in GetXY sometime in 2005: initial imlpementation

Наследование: IDisposable

Показать файл Открыть проект Примеры использования класса

Открытые методы

Метод	Описание
Add ( string sKey ) : void	Adds key to the fast hash
Add ( string sKey, object iValue ) : void	Adds key and its value to the fast hash
Contains ( string sKey ) : bool	Checks if given key is present in the hash
Dispose ( ) : void
FastHash ( ) : System
GetLikelyPresentValue ( byte iX, byte iY ) : object	Returns value for likely present keys using first chars (byte)
GetLikelyPresentValue ( string sKey ) : object	Returns value of a key that is VERY likely to be present - this avoids doing some checks that are most likely to be pointless thus making overall faster function
GetValue ( string sKey ) : object	Returns value associated with the key or null if key not present
GetXY ( string sKey, int &iX, int &iY ) : void
PossiblyContains ( char cChar1, char cChar2, int iLength ) : bool	Quickly checks if given chars POSSIBLY refer to a stored key.
this ( string sKey ) : object	Access to values via indexer

Приватные методы

Метод	Описание
Dispose ( bool bDisposing ) : void

Описание методов

Add() публичный Метод

Adds key to the fast hash

public Add ( string sKey ) : void
sKey	string	Key
Результат	void

Add() публичный Метод

Adds key and its value to the fast hash

public Add ( string sKey, object iValue ) : void
sKey	string	Key
iValue	object	Value
Результат	void

Contains() публичный Метод

Checks if given key is present in the hash

public Contains ( string sKey ) : bool
sKey	string	Key
Результат	bool

Dispose() публичный Метод

public Dispose ( ) : void
Результат	void

FastHash() публичный Метод

public FastHash ( ) : System
Результат	System

GetLikelyPresentValue() публичный Метод

Returns value for likely present keys using first chars (byte)

public GetLikelyPresentValue ( byte iX, byte iY ) : object
iX	byte	Byte 1 denoting char 1
iY	byte	Byte 2 denoting char 2 (0 if not present)
Результат	object

GetLikelyPresentValue() публичный Метод

Returns value of a key that is VERY likely to be present - this avoids doing some checks that are most likely to be pointless thus making overall faster function

public GetLikelyPresentValue ( string sKey ) : object
sKey	string	Key
Результат	object

GetValue() публичный Метод

Returns value associated with the key or null if key not present

public GetValue ( string sKey ) : object
sKey	string	Key
Результат	object

GetXY() публичный статический Метод

public static GetXY ( string sKey, int &iX, int &iY ) : void
sKey	string
iX	int
iY	int
Результат	void

PossiblyContains() публичный Метод

Quickly checks if given chars POSSIBLY refer to a stored key.

public PossiblyContains ( char cChar1, char cChar2, int iLength ) : bool
cChar1	char	Char 1
cChar2	char	Char 2
iLength	int	Length of string
Результат	bool

this() публичный Метод

Access to values via indexer

public this ( string sKey ) : object
sKey	string
Результат	object