public static final class Equivalence.Wrapper<T> extends Object implements 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(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 the wrapped reference. |
String |
toString()
Returns a string representation for this equivalence wrapper.
|
public T get()
public boolean equals(Object obj)
true
if Equivalence.equivalent(Object, Object)
applied to the wrapped
references is true
and both wrappers use the same
equivalence.public int hashCode()
Equivalence.hash(Object)
applied to the the wrapped reference.Copyright © 2013 Seam Framework. All Rights Reserved.