edu.mit.jmwe.util

Class ListComparator<T>

java.lang.Object

edu.mit.jmwe.util.AbstractIndexComparator<T,T>

edu.mit.jmwe.util.ListComparator<T>

Type Parameters:

T - the token type

All Implemented Interfaces:

java.util.Comparator<T>

public class ListComparator<T>
extends AbstractIndexComparator<T,T>

Compares two elements from a list based on their order of appearance in the list. Returns a negative integer, zero, or a positive integer if the first argument is appears earlier than, is equal to, or after the second.

Since:

jMWE 1.0.0

Version:

$Id: ListComparator.java 268 2011-05-05 19:23:28Z markaf $

Author:

N. Kulkarni, M.A. Finlayson

Field Summary

Fields inherited from class edu.mit.jmwe.util.AbstractIndexComparator

indexMap

Constructor Summary

Constructors

Constructor and Description
ListComparator(java.util.List<T> list) Constructs the comparator from the given list of objects by mapping each object in the list to its index in the list.
ListComparator(java.util.Map<T,java.lang.Integer> indexMap) Constructs the comparator from the given index map of each object in a list to its index in the list.

Method Summary

Modifier and Type	Method and Description
int	compare(T arg0, T arg1)

Methods inherited from class edu.mit.jmwe.util.AbstractIndexComparator

createIndexMap, getIndexMap

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

ListComparator

public ListComparator(java.util.List<T> list)

Constructs the comparator from the given list of objects by mapping each object in the list to its index in the list.

Parameters:

list - the list of objects used to construct this comparator. May not be null.

Throws:

java.lang.NullPointerException - if the given list is null

Since:

jMWE 1.0.0

ListComparator

public ListComparator(java.util.Map<T,java.lang.Integer> indexMap)

Constructs the comparator from the given index map of each object in a list to its index in the list.

Parameters:

indexMap - map of each object in a list to its index in the list. May not be null.

Throws:

java.lang.NullPointerException - if the specified map is null

Since:

jMWE 1.0.0

Method Detail

compare

public int compare(T arg0,
                   T arg1)