org.jjoost.util
Class Equalities.IdentityEquality

java.lang.Object
  org.jjoost.util.Equalities.IdentityEquality

All Implemented Interfaces:

java.io.Serializable, Equality<java.lang.Object>

Enclosing class:

Equalities

public static class Equalities.IdentityEquality
extends java.lang.Object
implements Equality<java.lang.Object>

an Equality for identity equality, i.e. like IdentityHashMap. Delegates to language equality ( a == b) and System.identityHashCode()

Author:

b.elliottsmith

See Also:

Serialized Form

Constructor Summary

Equalities.IdentityEquality()

Method Summary

boolean	equates(java.lang.Object a, java.lang.Object b) Returns a boolean indicating if the two parameters are considered equal by this Equality
int	hash(java.lang.Object k) Returns the hash value of the object as defined by this Equality.

Methods inherited from class java.lang.Object

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

Constructor Detail

Equalities.IdentityEquality

public Equalities.IdentityEquality()

Method Detail

equates

public final boolean equates(java.lang.Object a,
                             java.lang.Object b)

Description copied from interface: Equality

Returns a boolean indicating if the two parameters are considered equal by this Equality

Specified by:

equates in interface Equality<java.lang.Object>

Parameters:

a - an Object of type E

b - another Object of type E

Returns:

true if this equality equates the two arguments

hash

public final int hash(java.lang.Object k)

Description copied from interface: Equality

Returns the hash value of the object as defined by this Equality. For all objects this Equality can be applied to, it should be the case that equates(a, b) ==> hash(a) == hash(b)

Specified by:

hash in interface Equality<java.lang.Object>

Parameters:

k - an Object of type E

Returns:

the hash of the parameter