org.jjoost.util
Class Equalities.EntryEquality<K,V>

java.lang.Object
  org.jjoost.util.Equalities.EntryEquality<K,V>

All Implemented Interfaces:

java.io.Serializable, Equality<java.util.Map.Entry<K,V>>

Enclosing class:

Equalities

public static class Equalities.EntryEquality<K,V>
extends java.lang.Object
implements Equality<java.util.Map.Entry<K,V>>

an Equality over objects of type Entry, for provided K and V; wraps a separate Equality for comparing the key and value portions of the Entry.

Author:

b.elliottsmith

See Also:

Serialized Form

Constructor Summary

Equalities.EntryEquality(Equality<? super K> keyEq, Equality<? super V> valEq)
Construct a new EntryEquality

Method Summary

boolean	equates(java.util.Map.Entry<K,V> a, java.util.Map.Entry<K,V> b) Returns a boolean indicating if the two parameters are considered equal by this Equality
Equality<? super K>	getKeyEquality()
Equality<? super V>	getValueEquality()
int	hash(java.util.Map.Entry<K,V> o) 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.EntryEquality

public Equalities.EntryEquality(Equality<? super K> keyEq,
                                Equality<? super V> valEq)

Construct a new EntryEquality

Parameters:

keyEq - the Equality to use to compare the key portion of an Entry

valEq - the Equality to use to compare the value portion of an Entry

Method Detail

equates

public final boolean equates(java.util.Map.Entry<K,V> a,
                             java.util.Map.Entry<K,V> 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.util.Map.Entry<K,V>>

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.util.Map.Entry<K,V> o)

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.util.Map.Entry<K,V>>

Parameters:

o - an Object of type E

Returns:

the hash of the parameter

getKeyEquality

public final Equality<? super K> getKeyEquality()

Returns:

the Equality to use to compare the key portion of an Entry

getValueEquality

public final Equality<? super V> getValueEquality()

Returns:

the Equality to use to compare the value portion of an Entry