openbook.domain

Class Inventory

java.lang.Object

openbook.domain.Inventory

All Implemented Interfaces:

Serializable

@Entity
public class Inventory
extends Object
implements Serializable

A mutable persistent entity.

Author:

Pinaki Poddar

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Inventory()

Method Summary

Modifier and Type	Method and Description
void	decrement(int sold) Decrement this inventory by the given quantity.
Book	getBook() Gets the Book that this inventory represents.
int	getInStock() Gets the available quantity.
int	getSold() Gets the quantity sold so far.
int	getSupplied() Gets the quantity supplied so far.
int	getVersion()
void	increment(int supplied) Increment this inventory by the given quantity.

Methods inherited from class java.lang.Object

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

Constructor Detail

Inventory

protected Inventory()

Method Detail

getBook

public Book getBook()

Gets the Book that this inventory represents.

Returns:

non-null Book.

getInStock

public int getInStock()

Gets the available quantity. This is an in-flight value representing the difference between the quantity supplied and quantity sold so far.

getSupplied

public int getSupplied()

Gets the quantity supplied so far.

Returns:

a monotonically increasing positive number.

getSold

public int getSold()

Gets the quantity sold so far.

Returns:

a monotonically increasing positive number.

increment

public void increment(int supplied)

Increment this inventory by the given quantity.

Parameters:

supplied - must be positive.

decrement

public void decrement(int sold)

Decrement this inventory by the given quantity.

Parameters:

sold - must be positive.

getVersion

public int getVersion()