Package de.bcxp.challenge.countries

Class CountryEntry

java.lang.Object

de.bcxp.challenge.common.model.DocumentEntry

de.bcxp.challenge.countries.CountryEntry

All Implemented Interfaces:

IEntryWithComparableNumericTuple

public class CountryEntry
extends DocumentEntry
implements IEntryWithComparableNumericTuple

Represents a data entry for a specific country.

This class extends DocumentEntry and adds population and area-specific information.

See Also:

• DocumentEntry

Field Summary

Fields

Modifier and Type	Field	Description
private final double	area
private static final org.apache.logging.log4j.Logger	logger
private final long	population

Constructor Summary

Constructors

Constructor	Description
CountryEntry(String country, long population, double area)	Constructs a CountryEntry object.

Method Summary

Modifier and Type	Method	Description
double	getArea()
double	getBestMatchScore()	Calculates and returns the population density for this country instance.
String	getCountry()
long	getPopulation()
String	toString()

Methods inherited from class de.bcxp.challenge.common.model.DocumentEntry

getId

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final org.apache.logging.log4j.Logger logger

population

private final long population

area

private final double area

Constructor Details

CountryEntry

public CountryEntry(String country,
 long population,
 double area)

Constructs a CountryEntry object.

Parameters:

country - the name or identifier of the country

population - the population count of the country (must be zero or positive)

area - the total area of the country in square units (must be greater than zero)

Throws:

IllegalArgumentException - if population is negative, or if area is less than or equal to zero

Method Details

getBestMatchScore

public double getBestMatchScore()

Calculates and returns the population density for this country instance.

Specified by:

getBestMatchScore in interface IEntryWithComparableNumericTuple

Returns:

the population density as a double

Throws:

IllegalStateException - if the area is zero, indicating an invalid object state

getCountry

public String getCountry()

getArea

public double getArea()

getPopulation

public long getPopulation()

toString

public String toString()

Overrides:

toString in class Object