com.blazebit.comparator

Class BaseComparator<T>

java.lang.Object

com.blazebit.comparator.BaseComparator<T>

All Implemented Interfaces:

Comparator<T>

Direct Known Subclasses:

GenericComparator, PropertyPathStringComparator, StringComparator

public abstract class BaseComparator<T>
extends Object
implements Comparator<T>

This is the base for comparator implementations providing util mehtods all comparator need.

Author:

Thomas Herzog

Constructor Summary

Constructors

Constructor and Description
BaseComparator()

Method Summary

Modifier and Type	Method and Description
protected Integer	compareNullObjects(Object object1, Object object2) Checks for null objects and returns the proper result depedning on which object is null

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

compare, comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

BaseComparator

public BaseComparator()

Method Detail

compareNullObjects

protected Integer compareNullObjects(Object object1,
                                     Object object2)

Checks for null objects and returns the proper result depedning on which object is null

Parameters:

object1 -

object2 -

Returns:

1. 0 = field null or both objects null
2. 1 = object1 is null
3. -1 = object2 is null
4. null = both objects are not null