Accessing Web Sources - Beginning Java Programming: The Object-Oriented Approach

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public double getCost() {

return cost;

}

public void setCost(double cost) {

this.cost = cost;

}

public String toString() {

return String.format(

"Item: quantity: %s, cost: %s" +

"%n%s" +

"%n%s",

quantity, cost,

invoice,

product);

}

Next, create a RestServiceClient class to communicate with the web service:

package com.thomasbayer.sqlrest;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.StringReader;

import java.io.StringWriter;

import java.net.HttpURLConnection;

import java.net.URL;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.ParserConfigurationException;

import javax.xml.transform.Transformer;

import javax.xml.transform.TransformerException;

import javax.xml.transform.TransformerFactory;

import javax.xml.transform.dom.DOMSource;

import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;

public class RestServiceClient {

private final static String URL_API_ROOT =

public enum Resource {

CUSTOMER, PRODUCT, INVOICE, ITEM

};

public Document getResourceCollection(Resource resource) {

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