/* Copyright 2002, 2003 Elliotte Rusty Harold
This library is free software; you can redistribute it and/or modify
it under the terms of version 2.1 of the GNU Lesser General Public
License as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
You can contact Elliotte Rusty Harold by sending e-mail to
[email protected]. Please include the word "XOM" in the
subject line. The XOM home page is located at http://www.xom.nu/
*/
package nu.xom.samples;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import nu.xom.Element;
/**
*
* <p>
* Demonstrates building a structured XML document,
* from flat, tabular data. A different version of this
* example was originally developed for Chapter 4 of
* <cite><a target="_top"
* href="http://www.cafeconleche.org/books/xmljava/">Processing
* XML with Java</a></cite>.
* </p>
*
* @author Elliotte Rusty Harold
* @version 1.0
*
*/
public class Agency {
private String code;
private String name;
private String treasuryCode;
private String year;
private List bureaus = new ArrayList();
private static Map instances = new HashMap();
// A private constructor so instantiators
// have to use the factory method
private Agency(String name, String code, String treasuryCode,
String year) {
this.name = name;
this.code = code;
this.treasuryCode = treasuryCode;
this.year = year;
}
public static Agency getInstance(String name, String code,
String treasuryCode, String year) {
// Agencies can be uniquely identified by code alone
String key = code+" "+year;
Agency agency = (Agency) instances.get(key);
if (agency == null) {
agency = new Agency(name, code, treasuryCode, year);
instances.put(key, agency);
}
return agency;
}
public void add(Bureau b) {
if (!bureaus.contains(b)) {
bureaus.add(b);
}
}
public Element getXML() {
Element agency = new Element("Agency");
Element name = new Element("Name");
Element code = new Element("Code");
Element treasuryAgencyCode = new Element("TreasuryAgencyCode");
name.appendChild(this.name);
code.appendChild(this.code);
treasuryAgencyCode.appendChild(treasuryCode);
agency.appendChild(name);
agency.appendChild(code);
agency.appendChild(treasuryAgencyCode);
Iterator iterator = bureaus.iterator();
while (iterator.hasNext()) {
Bureau bureau = (Bureau) iterator.next();
agency.appendChild(bureau.getXML());
}
return agency;
}
}
|