org.salespointframework.order

Class Cart

java.lang.Object

org.salespointframework.order.Cart

All Implemented Interfaces:

Iterable<CartItem>, Supplier<Stream<CartItem>>, org.springframework.data.util.Streamable<CartItem>

public class Cart
extends Object
implements org.springframework.data.util.Streamable<CartItem>

Abstraction of a shopping cart.

Author:

Paul Henke, Oliver Gierke

Constructor Summary

Constructors

Constructor and Description
Cart()

Method Summary

Modifier and Type	Method and Description
Order	addItemsTo(Order order) Turns the current state of the cart into an Order.
CartItem	addOrUpdateItem(Product product, double amount) Creates a CartItem for the given Product and amount.
CartItem	addOrUpdateItem(Product product, long amount) Creates a CartItem for the given Product and amount.
CartItem	addOrUpdateItem(Product product, Quantity quantity) Creates a CartItem for the given Product and Quantity.
void	clear() Clears the cart.
Order	createOrderFor(UserAccount user) Creates a new Order for the given UserAccount from the current Cart.
Optional<CartItem>	getItem(String identifier) Returns the CartItem for the given identifier.
javax.money.MonetaryAmount	getPrice() Returns the price of the item.
boolean	isEmpty() Returns whether the Cart is currently empty.
Iterator<CartItem>	iterator()
Optional<CartItem>	removeItem(String identifier) Removes the CartItem with the given identifier.
static javax.money.MonetaryAmount	sumUp(Iterable<? extends org.salespointframework.order.Priced> priced) Sums up the prices of all given Priced instances.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.data.util.Streamable

and, empty, filter, flatMap, get, map, of, of, of, stream

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

Cart

public Cart()

Method Detail

addOrUpdateItem

public CartItem addOrUpdateItem(Product product,
                                Quantity quantity)

Creates a CartItem for the given Product and Quantity. If a CartItem for the given Product already exists the Cart will be updated to reflect the combined Quantity for the backing CartItem.

Parameters:

product - must not be null

quantity - must not be null

Returns:

The created CartItem.

addOrUpdateItem

public CartItem addOrUpdateItem(Product product,
                                long amount)

Creates a CartItem for the given Product and amount. If a CartItem for the given Product already exists the Cart will be updated to reflect the combined Quantity for the backing CartItem.

Parameters:

product - must not be null.

amount - must not be null.

Returns:

addOrUpdateItem

public CartItem addOrUpdateItem(Product product,
                                double amount)

Creates a CartItem for the given Product and amount. If a CartItem for the given Product already exists the Cart will be updated to reflect the combined Quantity for the backing CartItem.

Parameters:

product - must not be null.

amount - must not be null.

Returns:

removeItem

public Optional<CartItem> removeItem(String identifier)

Removes the CartItem with the given identifier.

Parameters:

identifier - must not be null.

Returns:

getItem

public Optional<CartItem> getItem(String identifier)

Returns the CartItem for the given identifier.

Parameters:

identifier - must not be null.

Returns:

clear

public void clear()

Clears the cart.

isEmpty

public boolean isEmpty()

Returns whether the Cart is currently empty.

Specified by:

isEmpty in interface org.springframework.data.util.Streamable<CartItem>

Returns:

addItemsTo

public Order addItemsTo(Order order)

Turns the current state of the cart into an Order.

Parameters:

order - must not be null.

Returns:

the Order which all items in the card have been added to.

Throws:

IllegalStateException - if the given Order is not OrderStatus.OPEN anymore.

createOrderFor

public Order createOrderFor(UserAccount user)

Creates a new Order for the given UserAccount from the current Cart.

Parameters:

user - must not be null.

Returns:

a new Order for the current Cart and given UserAccount.

getPrice

public javax.money.MonetaryAmount getPrice()

Returns the price of the item.

Returns:

iterator

public Iterator<CartItem> iterator()

Specified by:

iterator in interface Iterable<CartItem>

sumUp

public static javax.money.MonetaryAmount sumUp(Iterable<? extends org.salespointframework.order.Priced> priced)

Sums up the prices of all given Priced instances.

Parameters:

priced - must not be null.

Returns: