public static final class Equivalence.Wrapper<T> extends java.lang.Object implements java.io.Serializable
equals(Object)
and hashCode()
delegate to an Equivalence
.
For example, given an Equivalence
for strings
named equiv
that tests equivalence using their lengths:
equiv.wrap("a").equals(equiv.wrap("b")) // true
equiv.wrap("a").equals(equiv.wrap("hello")) // false
Note in particular that an equivalence wrapper is never equal to the object it wraps.
equiv.wrap(obj).equals(obj) // always false
Modifier and Type | Method and Description |
---|---|
boolean |
equals(@Nullable java.lang.Object obj)
Returns
true if Equivalence.equivalent(Object, Object) applied to the wrapped
references is true and both wrappers use the same
equivalence. |
T |
get()
Returns the (possibly null) reference wrapped by this instance.
|
int |
hashCode()
Returns the result of
Equivalence.hash(Object) applied to the wrapped reference. |
java.lang.String |
toString()
Returns a string representation for this equivalence wrapper.
|
public boolean equals(@Nullable java.lang.Object obj)
true
if Equivalence.equivalent(Object, Object)
applied to the wrapped
references is true
and both wrappers use the same
equivalence.equals
in class java.lang.Object
public int hashCode()
Equivalence.hash(Object)
applied to the wrapped reference.hashCode
in class java.lang.Object
public java.lang.String toString()
toString
in class java.lang.Object
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