|Constructor and Description|
|Modifier and Type||Method and Description|
Compares its two arguments for order.
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public int compare(Authenticator a1, Authenticator a2)
The implementor must ensure that
sgn(compare(x, y)) == -sgn(compare(y, x))
y. (This implies that
must throw an exception if and only if
compare(y, x) throws an exception.)
The implementor must also ensure that the relation is transitive:
(compare(x, y) > 0) && (compare(y, z) > 0) implies
compare(x, z) > 0.
Finally, the implementer must ensure that
compare(x, y) == 0
sgn(compare(x, z)) == sgn(compare(y, z)) for all
It is generally the case, but not strictly required that
(compare(x, y) == 0) == x.equals(y). Generally speaking,
any comparator that violates this condition should clearly indicate
this fact. The recommended language is "Note: this comparator
imposes orderings that are inconsistent with equals."
a1- the first object to be compared.
a2- the second object to be compared.
java.lang.ClassCastException- if the arguments' types prevent them from being compared by this Comparator.