com.ibatis.sqlmap.engine.cache
Class CacheKey

java.lang.Object
  com.ibatis.sqlmap.engine.cache.CacheKey

public class CacheKey

extends java.lang.Object

Hash value generator for cache keys

Field Summary

private long	checksum
private int	count
private static int	DEFAULT_HASHCODE
private static int	DEFAULT_MULTIPLYER
private int	hashcode
private int	multiplier

Constructor Summary

CacheKey()
Default constructor

CacheKey(int initialNonZeroOddNumber)
Costructor that supplies an initial hashcode

CacheKey(int initialNonZeroOddNumber, int multiplierNonZeroOddNumber)
Costructor that supplies an initial hashcode and multiplier

Method Summary

boolean	equals(java.lang.Object object)
int	hashCode()
java.lang.String	toString()
CacheKey	update(int x) Updates this object with new information based on an int value
CacheKey	update(java.lang.Object object) Updates this object with new information based on an object

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

DEFAULT_MULTIPLYER

private static final int DEFAULT_MULTIPLYER

See Also:

Constant Field Values

DEFAULT_HASHCODE

private static final int DEFAULT_HASHCODE

See Also:

Constant Field Values

multiplier

private int multiplier

hashcode

private int hashcode

checksum

private long checksum

count

private int count

Constructor Detail

CacheKey

public CacheKey()

Default constructor

CacheKey

public CacheKey(int initialNonZeroOddNumber)

Costructor that supplies an initial hashcode

Parameters:

initialNonZeroOddNumber - - the hashcode to use

CacheKey

public CacheKey(int initialNonZeroOddNumber,
                int multiplierNonZeroOddNumber)

Costructor that supplies an initial hashcode and multiplier

Parameters:

initialNonZeroOddNumber - - the hashcode to use

multiplierNonZeroOddNumber - - the multiplier to use

Method Detail

update

public CacheKey update(int x)

Updates this object with new information based on an int value

Parameters:

x - - the int value

Returns:

the cache key

update

public CacheKey update(java.lang.Object object)

Updates this object with new information based on an object

Parameters:

object - - the object

Returns:

the cachekey

equals

public boolean equals(java.lang.Object object)

hashCode

public int hashCode()

toString

public java.lang.String toString()