public abstract class ComparatorAbstract<T>
extends java.lang.Object
implements java.util.Comparator<T>
| Modifier and Type | Field and Description | 
|---|---|
private boolean | 
ascending  | 
| Constructor and Description | 
|---|
ComparatorAbstract(boolean ascending)
Creates a new instance of ComparatorAbstract. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
java.lang.Integer | 
compareByNulls(java.lang.Object first,
Compares objects by nulls. 
 | 
boolean | 
isAscending()  | 
ascending - first - second - null if both
         objects are not null.true) or descending (false)