public abstract class Comparer
extends java.lang.Object
For internal use only.
Constructor and Description |
---|
Comparer() |
Modifier and Type | Method and Description |
---|---|
abstract int |
compare(java.lang.Object left,
java.lang.Object right)
Compare two values for sorting.
|
public static final Comparer undefined
public abstract int compare(java.lang.Object left, java.lang.Object right)
Compare two values for sorting.
left
- (nullable) First value for comparison.right
- (nullable) Second value for comparison.left
is equal to right
in sorted order, left negative value (e.g. -1) if left
is less than right
in sorted order, or left positive value (e.g. 1) if left
is greater than right
in sorted order.