org.conqat.lib.commons.collections

Class IdComparator<I extends java.lang.Comparable<I>,T>

java.lang.Object

org.conqat.lib.commons.collections.IdentifierBasedComparatorBase<I,T>

org.conqat.lib.commons.collections.IdComparator<I,T>

All Implemented Interfaces:

java.util.Comparator<T>

public class IdComparator<I extends java.lang.Comparable<I>,T>
extends IdentifierBasedComparatorBase<I,T>

Comparator that compares objects based on the identifiers provided by a IIdProvider.

Author:

deissenb

Constructor Summary

Constructors

Constructor and Description
IdComparator(IIdProvider<I,T> idProvider) Create new comparator.

Method Summary

Modifier and Type	Method and Description
protected I	obtainIdentifier(T t) Obtain identifier from identifier provider.

Methods inherited from class org.conqat.lib.commons.collections.IdentifierBasedComparatorBase

compare

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

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

Constructor Detail

IdComparator

public IdComparator(IIdProvider<I,T> idProvider)

Create new comparator.

Method Detail

obtainIdentifier

protected I obtainIdentifier(T t)

Obtain identifier from identifier provider.

Specified by:

obtainIdentifier in class IdentifierBasedComparatorBase<I extends java.lang.Comparable<I>,T>

Throws:

java.lang.NullPointerException - if the id provider returns null.