Package ca.uqac.lif.cep.tuples

Class TupleComparator

java.lang.Object

ca.uqac.lif.cep.tuples.TupleComparator

All Implemented Interfaces:

Comparator<Tuple>

public class TupleComparator
extends Object
implements Comparator<Tuple>

Compares two tuples according to the values of one or many of their attributes. Such a comparator can be used to sort a list of tuples.

Author:

Sylvain Hallé

Field Summary

Fields

Modifier and Type	Field	Description
protected String[]	m_sortAttributes	The attributes over which to perform the comparison

Constructor Summary

Constructors

Constructor	Description
TupleComparator(String... attributes)	Creates a new tuple comparator

Method Summary

Modifier and Type	Method	Description
int	compare(Tuple x, Tuple y)

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, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Details

m_sortAttributes

protected String[] m_sortAttributes

The attributes over which to perform the comparison

Constructor Details

TupleComparator

public TupleComparator(String... attributes)

Creates a new tuple comparator

Parameters:

attributes - The attributes over which to perform the comparison

Method Details

compare

public int compare(Tuple x,
 Tuple y)

Specified by:

compare in interface Comparator<Tuple>