| java.lang.Object
 jodd.util.HashCodeUtil
| HashCodeUtil | | public class HashCodeUtil (Code) | | Collected methods which allow easy implementation of hashCode().
Based on items 7 and 8 from "Effective Java" book.
Usage scenarion:
int result = HashCodeUtil.SEED;
result = HashCodeUtil.hash(result, fIsDecrepit);
...
todo: Add primitive arrays.
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| Field Summary | |
| final public static int | PRIME
| | final public static int | SEED
An initial hash code value to which is added contributions from fields. |
| Method Summary | |
| public static int | hash(int seed, boolean aBoolean)
Calculate hash code for booleans. | | public static int | hash(int seed, char aChar)
Calculate hash code for chars. | | public static int | hash(int seed, int aInt)
Calculate hash code for ints. | | public static int | hash(int seed, long aLong)
Calculate hash code for longs. | | public static int | hash(int seed, float aFloat)
Calculate hash code for floats. | | public static int | hash(int seed, double aDouble)
Calculate hash code for doubles. | | public static int | hash(int seed, Object aObject)
Calculate hash code for Objects. |
| PRIME | | final public static int PRIME(Code) | | |
| SEED | | final public static int SEED(Code) | | An initial hash code value to which is added contributions from fields.
Using a non-zero value decreases collisons of hash code values.
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| hash | | public static int hash(int seed, boolean aBoolean)(Code) | | Calculate hash code for booleans.
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| hash | | public static int hash(int seed, char aChar)(Code) | | Calculate hash code for chars.
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| hash | | public static int hash(int seed, int aInt)(Code) | | Calculate hash code for ints.
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| hash | | public static int hash(int seed, long aLong)(Code) | | Calculate hash code for longs.
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| hash | | public static int hash(int seed, float aFloat)(Code) | | Calculate hash code for floats.
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| hash | | public static int hash(int seed, double aDouble)(Code) | | Calculate hash code for doubles.
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| hash | | public static int hash(int seed, Object aObject)(Code) | | Calculate hash code for Objects. Object 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.
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