pb138.service.facades

Class ItemFacadeImpl

java.lang.Object

pb138.service.facades.ItemFacadeImpl

All Implemented Interfaces:

ItemFacade

public class ItemFacadeImpl
extends Object
implements ItemFacade

Implements item facade

Constructor Summary

Constructors

Constructor and Description
ItemFacadeImpl(ItemService itemService, CategoryService categoryService) Constructor.

Method Summary

Modifier and Type	Method and Description
Item	changeItem(String newName, String newDescription, String newCategory, Integer newAlertThreshold, String newUnit, Item item) Updates existing item, but doesn't store it in db
Pair<Item,CreateOrUpdate>	createOrUpdateItem(String name, String description, String categoryName, Integer alertThreshold, String unit, long ean) Creates a new item, or updates it if it already exist but doesn't do the actual storing in db
List<Item>	getAllItems() Return all items
List<Item>	getAllItemsByCategory(String categoryName) Return all items with given category
Item	getItemByEan(long ean) Gets item by its ean
Item	storeItemInDb(Pair<Item,CreateOrUpdate> i) Item will be created in db
Item	updateItemFromWeb(long ean, int newAmount, Integer newThreshold, String newUnit) For updating items from web interface

Methods inherited from class java.lang.Object

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

Constructor Detail

ItemFacadeImpl

public ItemFacadeImpl(ItemService itemService,
                      CategoryService categoryService)

Constructor.

Parameters:

itemService - itemService

categoryService - categoryService

Method Detail

createOrUpdateItem

public Pair<Item,CreateOrUpdate> createOrUpdateItem(String name,
                                                    String description,
                                                    String categoryName,
                                                    Integer alertThreshold,
                                                    String unit,
                                                    long ean)
                                             throws EntityDoesNotExistException

Description copied from interface: ItemFacade

Creates a new item, or updates it if it already exist but doesn't do the actual storing in db

Specified by:

createOrUpdateItem in interface ItemFacade

Parameters:

name - name of item

description - description of item, null if there should be none

categoryName - name of category of this item, must be already in db, cause @EntityDoesNotExistException if it is not there

alertThreshold - alert threshold for item, null if there is none

unit - unit for measuring the item

ean - ean of item, unique identifier

Returns:

Item that was created

Throws:

EntityDoesNotExistException - if category is not in db

changeItem

public Item changeItem(String newName,
                       String newDescription,
                       String newCategory,
                       Integer newAlertThreshold,
                       String newUnit,
                       Item item)
                throws EntityDoesNotExistException

Description copied from interface: ItemFacade

Updates existing item, but doesn't store it in db

Specified by:

changeItem in interface ItemFacade

Parameters:

newName - New name of item

newDescription - New description of item, null if there should be none

newCategory - New category of item, must be in db, cause @EntityDoesNotExistException if it is not there

newAlertThreshold - New alert threshold of item, or null

newUnit - New unit of item

item - item to be changed

Returns:

Item that was changed

Throws:

EntityDoesNotExistException - if category is not in db

getAllItems

public List<Item> getAllItems()

Description copied from interface: ItemFacade

Return all items

Specified by:

getAllItems in interface ItemFacade

Returns:

All items in db

getAllItemsByCategory

public List<Item> getAllItemsByCategory(String categoryName)
                                 throws EntityDoesNotExistException

Description copied from interface: ItemFacade

Return all items with given category

Specified by:

getAllItemsByCategory in interface ItemFacade

Parameters:

categoryName - name of the category

Returns:

list of items belonging to the category

Throws:

EntityDoesNotExistException - if category is not in the db

updateItemFromWeb

public Item updateItemFromWeb(long ean,
                              int newAmount,
                              Integer newThreshold,
                              String newUnit)
                       throws ServiceException,
                              EntityDoesNotExistException

Description copied from interface: ItemFacade

For updating items from web interface

Specified by:

updateItemFromWeb in interface ItemFacade

Parameters:

ean - ean of item to be updated

newAmount - new amount of item

newThreshold - new threshold, null if it will be left unfilled or something

newUnit - new unit

Returns:

item that was updated

Throws:

ServiceException - if something goes wrong on the db layer and service layer cannot deal with it

EntityDoesNotExistException - if item with this ean is not in db

getItemByEan

public Item getItemByEan(long ean)

Description copied from interface: ItemFacade

Gets item by its ean

Specified by:

getItemByEan in interface ItemFacade

Parameters:

ean - ean of item

Returns:

Item with given ean

storeItemInDb

public Item storeItemInDb(Pair<Item,CreateOrUpdate> i)
                   throws ServiceException

Description copied from interface: ItemFacade

Item will be created in db

Specified by:

storeItemInDb in interface ItemFacade

Parameters:

i - item to be created

Returns:

item that was created

Throws:

ServiceException - if something goes wrong on the db layer and service layer cannot deal with it