Package no.ntnu.idatt1002.demo.repo

Class InventoryRegister

java.lang.Object

no.ntnu.idatt1002.demo.repo.InventoryRegister

public class InventoryRegister
extends Object

This class represents a register for inventory items. Allowing for communication between the database and the user interface.

Field Summary

Fields

Modifier and Type	Field	Description
private final DAO	dao
private List<InventoryItem>	inventoryItems
private static final String	TABLE_NAME

Constructor Summary

Constructors

Constructor	Description
InventoryRegister(DAO dao)	Constructor for the Inventory class.

Method Summary

Modifier and Type	Method	Description
void	addInventoryItem(int itemId, int quantity, String unit, int expirationDate)	This method adds a new inventory item to the database.
void	deleteInventoryItem(int id)	This method deletes an inventory item from the database.
void	filterInventoryByCategory(String category)	This method retrieves filtered inventory items by category from the database.
void	getAllInventoryItems()	This method retrieves all inventory items from the database.
private int	getIndexFromId(int id)	This method retrieves the index of an inventory item by its id.
List<InventoryItem>	getInventoryItems()	Returns the inventory items in the register in the form of lists.
private void	packageToInventoryItems(List<List<String>> inventoryItems)	This method packages lists of lists representing inventory items into InventoryItem objects.
void	searchInventoryByName(String name)	This method searches for inventory items by name and retrieves them from the database.
void	updateInventoryItem(int inventoryId, int itemId, int quantity, String unit, int expirationDate)	This method updates an inventory item in the database.

Methods inherited from class java.lang.Object

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

Field Details

inventoryItems

private List<InventoryItem> inventoryItems

dao

private final DAO dao

TABLE_NAME

private static final String TABLE_NAME

See Also:

• Constant Field Values

Constructor Details

InventoryRegister

public InventoryRegister(DAO dao)

Constructor for the Inventory class.

Parameters:

dao - the database access object

Throws:

IllegalArgumentException - if the dao is null

Method Details

getInventoryItems

public List<InventoryItem> getInventoryItems()

Returns the inventory items in the register in the form of lists.

Returns:

the inventory items in the register as lists of strings

getAllInventoryItems

public void getAllInventoryItems()

This method retrieves all inventory items from the database.

filterInventoryByCategory

public void filterInventoryByCategory(String category)

This method retrieves filtered inventory items by category from the database.

Parameters:

category - the category to filter by

Throws:

IllegalArgumentException - if category is empty

searchInventoryByName

public void searchInventoryByName(String name)

This method searches for inventory items by name and retrieves them from the database.

Parameters:

name - the name to search by

Throws:

IllegalArgumentException - if the name is empty

packageToInventoryItems

private void packageToInventoryItems(List<List<String>> inventoryItems)

This method packages lists of lists representing inventory items into InventoryItem objects.

Parameters:

inventoryItems - the list of lists representing inventory items

addInventoryItem

public void addInventoryItem(int itemId,
 int quantity,
 String unit,
 int expirationDate)

This method adds a new inventory item to the database.

Parameters:

itemId - the id of the item

quantity - the quantity of the item

unit - the unit of the item

expirationDate - the expiration date of the item

getIndexFromId

private int getIndexFromId(int id)

This method retrieves the index of an inventory item by its id.

Parameters:

id - the id of the inventory item

Returns:

the index of the inventory item

deleteInventoryItem

public void deleteInventoryItem(int id)

This method deletes an inventory item from the database.

Parameters:

id - the id of the inventory item to delete

Throws:

IllegalArgumentException - if the id does not exist

updateInventoryItem

public void updateInventoryItem(int inventoryId,
 int itemId,
 int quantity,
 String unit,
 int expirationDate)

This method updates an inventory item in the database.

Parameters:

inventoryId - the id of the inventory item

itemId - the id of the item

quantity - the quantity of the item

unit - the unit of the item

expirationDate - the expiration date of the item

Throws:

IllegalArgumentException - if the id does not exist