edu.tum.cs.commons.collections
Class IdComparator<I extends java.lang.Comparable<I>,T>

java.lang.Object
  edu.tum.cs.commons.collections.IdentifierBasedComparatorBase<I,T>
      edu.tum.cs.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.

Version:

$Rev: 26283 $

Author:

deissenb, $Author: juergens $

Rating:

GREEN Hash: 3F2D6549B37B7E5FF4BC2F5E98EC0A29

Constructor Summary

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

Method Summary

protected I

obtainIdentifier(T t) Obtain identifier from identifier provider.

Methods inherited from class edu.tum.cs.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

equals

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.