Class PriceRangeIterator

java.lang.Object

com.university.bookstore.iterator.PriceRangeIterator

All Implemented Interfaces:

MaterialIterator

public class PriceRangeIterator
extends Object
implements MaterialIterator

Iterator that filters materials by price range. Only returns materials within the specified price range.

Since:

2024-09-15

Version:

3.0

Author:

Navid Mohaghegh

Constructor Summary

Constructors

Constructor	Description
PriceRangeIterator(List<Material> materials, double minPrice, double maxPrice)	Creates a new price range iterator.

Method Summary

Modifier and Type	Method	Description
int	getCurrentPosition()	Gets the current position in the iteration.
double	getMaxPrice()	Gets the maximum price.
double	getMinPrice()	Gets the minimum price.
double	getPriceRange()	Gets the price range.
int	getRemainingCount()	Gets the number of materials remaining to be iterated.
int	getTotalCount()	Gets the total number of materials that can be iterated.
boolean	hasNext()	Checks if there are more materials to iterate over.
boolean	isAtBeginning()	Checks if the iterator is at the beginning.
boolean	isAtEnd()	Checks if the iterator is at the end.
Material	next()	Gets the next material in the iteration.
void	reset()	Resets the iterator to the beginning.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

PriceRangeIterator

public PriceRangeIterator(List<Material> materials,
 double minPrice,
 double maxPrice)

Creates a new price range iterator.

Parameters:

materials - the list of materials to iterate over

minPrice - the minimum price (inclusive)

maxPrice - the maximum price (inclusive)

Throws:

IllegalArgumentException - if price range is invalid

Method Details

hasNext

public boolean hasNext()

Description copied from interface: MaterialIterator

Checks if there are more materials to iterate over.

Specified by:

hasNext in interface MaterialIterator

Returns:

true if there are more materials

next

public Material next()

Description copied from interface: MaterialIterator

Gets the next material in the iteration.

Specified by:

next in interface MaterialIterator

Returns:

the next material

reset

public void reset()

Description copied from interface: MaterialIterator

Resets the iterator to the beginning.

Specified by:

reset in interface MaterialIterator

getCurrentPosition

public int getCurrentPosition()

Description copied from interface: MaterialIterator

Gets the current position in the iteration.

Specified by:

getCurrentPosition in interface MaterialIterator

Returns:

the current position (0-based)

getTotalCount

public int getTotalCount()

Description copied from interface: MaterialIterator

Gets the total number of materials that can be iterated.

Specified by:

getTotalCount in interface MaterialIterator

Returns:

the total count

getRemainingCount

public int getRemainingCount()

Description copied from interface: MaterialIterator

Gets the number of materials remaining to be iterated.

Specified by:

getRemainingCount in interface MaterialIterator

Returns:

the remaining count

isAtBeginning

public boolean isAtBeginning()

Description copied from interface: MaterialIterator

Checks if the iterator is at the beginning.

Specified by:

isAtBeginning in interface MaterialIterator

Returns:

true if at the beginning

isAtEnd

public boolean isAtEnd()

Description copied from interface: MaterialIterator

Checks if the iterator is at the end.

Specified by:

isAtEnd in interface MaterialIterator

Returns:

true if at the end

getMinPrice

public double getMinPrice()

Gets the minimum price.

Returns:

the minimum price

getMaxPrice

public double getMaxPrice()

Gets the maximum price.

Returns:

the maximum price

getPriceRange

public double getPriceRange()

Gets the price range.

Returns:

the price range

toString

public String toString()

Overrides:

toString in class Object