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/**
* Copyright (c) 2015 Camil Staps <info@camilstaps.nl>
* See the LICENSE file for copying permission.
*/
package com.camilstaps.shop;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;
/**
* A Cart holds the articles a User is planning to buy.
* @author Camil Staps, s4498062
*/
public class Cart implements Serializable {
private final Set<Article> articles = new HashSet<>();
public Set<Article> getArticles() {
return articles;
}
/**
* Get the total price of all articles
* @return
*/
public float getTotalAmount() {
float result = 0;
for (Article a : articles) {
result += a.getPrice();
}
return result;
}
/**
* Add a new article
* @param article
*/
public void add(Article article) {
Database.getInstance().removeItem(article);
articles.add(article);
}
/**
* Remove an article (and put it back in the database)
* @param article
*/
public void remove(Article article) {
articles.remove(article);
try {
Database.getInstance().addItem(article);
} catch (DuplicateEntryException ex) {
}
}
/**
* Remove all articles in the manner of remove()
* @see self#remove
*/
public void reset() {
for (Article a : articles) {
remove(a);
}
}
/**
* Remove all articles, but don't put them back in the database
*/
public void clear() {
articles.clear();
}
}
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