gnu.trove.strategy
Interface HashingStrategy<T>

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

IdentityHashingStrategy

public interface HashingStrategy<T>
extends java.io.Serializable

Interface to support pluggable hashing strategies in maps and sets. Implementers 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.

Author:

Eric Friedman, Rob Eden

Method Summary

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

Method Detail

computeHashCode

int computeHashCode(T object)

Computes a hash code for the specified object. Implementers 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 implementers may use the objects' own equals() methods, compare object references, or implement some custom scheme.

Parameters:

o1 - an Object value

o2 - an Object value

Returns:

true if the objects are equal according to this strategy.