public class ProductDB
extends java.lang.Object
Modifier and Type | Method and Description |
---|---|
Product |
findProduct(java.lang.String productID)
Returns the product for a given product id.
|
java.util.List<java.lang.String> |
getAllProductIds()
Returns all existing product ids.
|
static ProductDB |
getInstance()
Returns the instance of this class.
|
public static ProductDB getInstance()
public Product findProduct(java.lang.String productID)
productID
- null
if
no such product exsits.public java.util.List<java.lang.String> getAllProductIds()