com.google.common.base

Class FunctionalEquivalence<F,T>

java.lang.Object

com.google.common.base.Equivalence<F>

com.google.common.base.FunctionalEquivalence<F,T>

All Implemented Interfaces:

java.io.Serializable

@Beta
 @GwtCompatible
final class FunctionalEquivalence<F,T>
extends Equivalence<F>
implements java.io.Serializable

Equivalence applied on functional result.

Since:

10.0

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.base.Equivalence

Equivalence.Equals, Equivalence.Identity, Equivalence.Wrapper<T>

Field Summary

Fields

Modifier and Type	Field and Description
private Function<F,? extends T>	function
private Equivalence<T>	resultEquivalence
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor and Description
FunctionalEquivalence(Function<F,? extends T> function, Equivalence<T> resultEquivalence)

Method Summary

Modifier and Type	Method and Description
protected boolean	doEquivalent(F a, F b) Returns true if a and b are considered equivalent.
protected int	doHash(F a) Returns a hash code for non-null object t.
boolean	equals(java.lang.Object obj)
int	hashCode()
java.lang.String	toString()

Methods inherited from class com.google.common.base.Equivalence

equals, equivalent, equivalentTo, hash, identity, onResultOf, pairwise, wrap

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

function

private final Function<F,? extends T> function

resultEquivalence

private final Equivalence<T> resultEquivalence

Constructor Detail

FunctionalEquivalence

FunctionalEquivalence(Function<F,? extends T> function,
                      Equivalence<T> resultEquivalence)

Method Detail

doEquivalent

protected boolean doEquivalent(F a,
                               F b)

Description copied from class: Equivalence

Returns true if a and b are considered equivalent.

Called by Equivalence.equivalent(T, T). a and b are not the same object and are not nulls.

Specified by:

doEquivalent in class Equivalence<F>

doHash

protected int doHash(F a)

Description copied from class: Equivalence

Returns a hash code for non-null object t.

Called by Equivalence.hash(T).

Specified by:

doHash in class Equivalence<F>

equals

public boolean equals(@Nullable
                      java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object