com.helger.commons.compare

Class ComparatorComparable<DATATYPE extends Comparable<? super DATATYPE>>

java.lang.Object

com.helger.commons.compare.AbstractComparator<DATATYPE>

com.helger.commons.compare.ComparatorComparable<DATATYPE>

Type Parameters:

DATATYPE - Data type to compare

All Implemented Interfaces:

ISerializableComparator<DATATYPE>, Serializable, Comparator<DATATYPE>

Direct Known Subclasses:

ComparatorString

@NotThreadSafe
public class ComparatorComparable<DATATYPE extends Comparable<? super DATATYPE>>
extends AbstractComparator<DATATYPE>

A Comparator for Comparable objects that can handle null values.

Author:

Philip Helger

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ComparatorComparable() Comparator with default sort order and no nested comparator.

Method Summary

Modifier and Type	Method and Description
protected int	mainCompare(DATATYPE aElement1, DATATYPE aElement2)

Methods inherited from class com.helger.commons.compare.AbstractComparator

compare, getNestedComparator, getSortOrder, isNullValuesComeFirst, setNestedComparator, setNullValuesComeFirst, setSortOrder, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

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

Constructor Detail

ComparatorComparable

public ComparatorComparable()

Comparator with default sort order and no nested comparator.

Method Detail

mainCompare

protected final int mainCompare(@Nonnull
                                DATATYPE aElement1,
                                @Nonnull
                                DATATYPE aElement2)

Specified by:

mainCompare in class AbstractComparator<DATATYPE extends Comparable<? super DATATYPE>>

Parameters:

aElement1 - First element to compare. Never null.

aElement2 - Second element to compare. Never null.

Returns:

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.