org.mybatis.generator.internal.util

类 HashCodeUtil

java.lang.Object

org.mybatis.generator.internal.util.HashCodeUtil

public final class HashCodeUtil
extends Object

This class is from javapractices.com: http://www.javapractices.com/Topic28.cjp Collected methods which allow easy implementation of hashCode. Example use case:

 public int hashCode() {
     int result = HashCodeUtil.SEED;
     //collect the contributions of various fields
     result = HashCodeUtil.hash(result, fPrimitive);
     result = HashCodeUtil.hash(result, fObject);
     result = HashCodeUtil.hash(result, fArray);
     return result;
 }
 

字段概要

字段

限定符和类型	字段和说明
static int	SEED An initial value for a hashCode, to which is added contributions from fields.

构造器概要

构造器

构造器和说明
HashCodeUtil()

方法概要

限定符和类型	方法和说明
static int	hash(int aSeed, boolean aBoolean) booleans.
static int	hash(int aSeed, char aChar) chars.
static int	hash(int aSeed, double aDouble) doubles.
static int	hash(int aSeed, float aFloat) floats.
static int	hash(int aSeed, int aInt) ints.
static int	hash(int aSeed, long aLong) longs.
static int	hash(int aSeed, Object aObject) aObject is a possibly-null object field, and possibly an array.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

SEED

public static final int SEED

An initial value for a hashCode, to which is added contributions from fields. Using a non-zero value decreases collisons of hashCode values.

另请参阅:

常量字段值

构造器详细资料

HashCodeUtil

public HashCodeUtil()

方法详细资料

hash

public static int hash(int aSeed,
                       boolean aBoolean)

booleans.

参数:

aSeed - the a seed

aBoolean - the a boolean

返回:

the int

hash

public static int hash(int aSeed,
                       char aChar)

chars.

参数:

aSeed - the a seed

aChar - the a char

返回:

the int

hash

public static int hash(int aSeed,
                       int aInt)

ints.

参数:

aSeed - the a seed

aInt - the a int

返回:

the int

hash

public static int hash(int aSeed,
                       long aLong)

longs.

参数:

aSeed - the a seed

aLong - the a long

返回:

the int

hash

public static int hash(int aSeed,
                       float aFloat)

floats.

参数:

aSeed - the a seed

aFloat - the a float

返回:

the int

hash

public static int hash(int aSeed,
                       double aDouble)

doubles.

参数:

aSeed - the a seed

aDouble - the a double

返回:

the int

hash

public static int hash(int aSeed,
                       Object aObject)

aObject is a possibly-null object field, and possibly an array. If aObject is an array, then each element may be a primitive or a possibly-null object.

参数:

aSeed - the a seed

aObject - the a object

返回:

the int