com.helger.commons.collection.impl

Class ComparatorMapEntryKey<KEYTYPE,VALUETYPE>

java.lang.Object

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

com.helger.commons.compare.AbstractPartComparator<Map.Entry<KEYTYPE,VALUETYPE>,KEYTYPE>

com.helger.commons.collection.impl.ComparatorMapEntryKey<KEYTYPE,VALUETYPE>

All Implemented Interfaces:

ISerializableComparator<Map.Entry<KEYTYPE,VALUETYPE>>, Serializable, Comparator<Map.Entry<KEYTYPE,VALUETYPE>>

public class ComparatorMapEntryKey<KEYTYPE,VALUETYPE>
extends AbstractPartComparator<Map.Entry<KEYTYPE,VALUETYPE>,KEYTYPE>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ComparatorMapEntryKey(Comparator<? super KEYTYPE> aPartComparator)

Method Summary

Modifier and Type	Method and Description
protected KEYTYPE	getPart(Map.Entry<KEYTYPE,VALUETYPE> aObject) Implement this method to extract the part to compare from the original object.

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

getPartComparator, mainCompare, toString

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

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

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

ComparatorMapEntryKey

public ComparatorMapEntryKey(@Nonnull
                             Comparator<? super KEYTYPE> aPartComparator)

Method Detail

getPart

@Nullable
protected KEYTYPE getPart(@Nonnull
                                     Map.Entry<KEYTYPE,VALUETYPE> aObject)

Description copied from class: AbstractPartComparator

Implement this method to extract the part to compare from the original object.

Specified by:

getPart in class AbstractPartComparator<Map.Entry<KEYTYPE,VALUETYPE>,KEYTYPE>

Parameters:

aObject - The object to be compared. Never null.

Returns:

The part of the source object to be compared with the part comparator provided in the constructor. May be null.