gnu.trove

Interface TObjectHashingStrategy<T>

All Superinterfaces:

Equality<T>, java.io.Serializable

All Known Implementing Classes:

THashMap, THashSet, TObjectByteHashMap, TObjectDoubleHashMap, TObjectFloatHashMap, TObjectHash, TObjectIdentityHashingStrategy, TObjectIntHashMap, TObjectLongHashMap

public interface TObjectHashingStrategy<T>
extends java.io.Serializable, Equality<T>

Interface to support pluggable hashing strategies in maps and sets. Implementors can use this interface to make the trove hashing algorithms use object values, values provided by the java runtime, or a custom strategy when computing hashcodes. Created: Sat Aug 17 10:52:32 2002

Field Summary

Fields

Modifier and Type	Field and Description
static TObjectHashingStrategy	CANONICAL
static TObjectHashingStrategy	IDENTITY

Method Summary

Modifier and Type	Method and Description
int	computeHashCode(T object) Computes a hash code for the specified object.
boolean	equals(T o1, T o2) Compares o1 and o2 for equality.

Field Detail

IDENTITY

static final TObjectHashingStrategy IDENTITY

CANONICAL

static final TObjectHashingStrategy CANONICAL

Method Detail

computeHashCode

int computeHashCode(T object)

Computes a hash code for the specified object. Implementors can use the object's own hashCode method, the Java runtime's identityHashCode, or a custom scheme.

Parameters:

object - for which the hashcode is to be computed

Returns:

the hashCode

equals

boolean equals(T o1,
               T o2)

Compares o1 and o2 for equality. Strategy implementors may use the objects' own equals() methods, compare object references, or implement some custom scheme.

Specified by:

equals in interface Equality<T>

Parameters:

o1 - an Object value

o2 - an Object value

Returns:

true if the objects are equal according to this strategy.