de.jstacs.utils

Class ComparableElement<E,C extends Comparable>

java.lang.Object

de.jstacs.utils.ComparableElement<E,C>

Type Parameters:

E - any Class

C - an implementation of Comparable that is used to compare instance of ComparableElement

All Implemented Interfaces:

Comparable<ComparableElement<E,C>>

public class ComparableElement<E,C extends Comparable>
extends Object
implements Comparable<ComparableElement<E,C>>

This class is a container for any objects that have to be compared. It is enables you e.g. to use the method Arrays.sort(...) without writing a comparator. Furthermore it helps to speed up the sorting since the "weight" can be precomputed and does not have to be recomputed in every comparison.

Author:

Jens Keilwagen

Constructor Summary

Constructors

Constructor and Description
ComparableElement(E o, C w) Creates a new ComparableElement.

Method Summary

Modifier and Type	Method and Description
int	compareTo(ComparableElement<E,C> o)
E	getElement() This method returns the element.
C	getWeight() This method returns the weight of the element.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ComparableElement

public ComparableElement(E o,
                         C w)

Creates a new ComparableElement.

Parameters:

o - the element

w - the weight

Method Detail

getElement

public E getElement()

This method returns the element.

Returns:

the element

getWeight

public C getWeight()

This method returns the weight of the element.

Returns:

the weight of the element

compareTo

public int compareTo(ComparableElement<E,C> o)
              throws ClassCastException

Specified by:

compareTo in interface Comparable<ComparableElement<E,C extends Comparable>>

Throws:

ClassCastException

toString

public String toString()

Overrides:

toString in class Object