You need to modify your mapping.xml file as such:
<field name="productGroup" type="string"/>
should be:
<field name="productGroup" type="string">
<bind-xml name="product_group"/>
</field>
--Keith
jose luis campos wrote:
>
> org.xml.sax.SAXException: unable to find FieldDescriptor for
> 'product_group' in ClassDescriptor of org.sibum.amazon.Catalog{file:
> [not available]; line: 6; column: 16}
>
>
> What im doing wrong? Please check the xml file at
> http://rcm.amazon.com/e/cm?t=universitstea-20&l=st1&search=XML&mode=books&p=102&o=1&f=xml
>
> Complete code follows.
>
> Product.java
> /*
> * Author: Administrator
> * Created: Saturday, March 13, 2004 11:21:59 AM
> * Modified: Saturday, March 13, 2004 11:21:59 AM
> */
> package org.sibum.amazon;
> public class Product
> {
> private String ranking;
> private String title;
> private String asin;
> private String author;
> private String image;
> private String smallImage;
> private String ourPrice;
> private String listPrice;
> private String releaseDate;
> private String binding;
> private String availability;
> private String taggedURL;
>
>
> public Product(String r,String t,String as,String au,String
> img,String sImg,String oP,String lP,String rD,String b,String
> av,String tURL)
> {ranking=r;
> title=t;
> asin=as;
> author=au;
> image=img;
> smallImage=sImg;
> ourPrice=oP;
> listPrice=lP;
> releaseDate=rD;
> binding=b;
> availability=av;
> taggedURL=tURL;
>
> }
>
>
> ! ! public Product()
> {}
> public String getRanking()
> {
> return ranking;
> }
>
> public void setRanking(String str)
> {
> ranking=str;
> }
>
> public String getTitle()
> {
> return title;
> }
>
> public void setTitle(String str)
> {
> title=str;
> }
>
> public String getAsin()
> {
> return asin;
> }
>
> public void setAsin(String str)
> {
> asin=str;
> }
>
> public String getAuthor()
> {
> return author;
> }
>
> public void setAuthor(String str)
> {
> author=str;
> }
>
> public String getImage()
> {
> return image;
> }
>
> public void setImage(String str)
> {
> image=str;
> }
>
> public String getSmallImag! e(! )
> {
> return smallImage;
> }
>
> public void setSmallImage(String str)
> {
> smallImage=str;
> }
>
> public String getOurPrice()
> {
> return ourPrice;
> }
>
> public void setOurPrice(String str)
> {
> ourPrice=str;
> }
>
> public String getListPrice()
> {
> return listPrice;
> }
>
> public void setListPrice(String str)
> {
> listPrice=str;
> }
>
> public String getReleaseDate()
> {
> return releaseDate;
> }
>
> public void setReleaseDate(String str)
> {
> releaseDate=str;
> }
>
> public String getBinding()
> {
> return binding;
> }
>
> public void setBinding(String str)
> {
> binding=str;
> }
>
> public String getA! vail! ability()
> {
> return availability;
> }
>
> public void setAvailability(String str)
> {
> availability=str;
> }
>
> public String getTaggedURL()
> {
> return taggedURL;
> }
>
> public void setTaggedURL(String str)
> {
> taggedURL=str;
> }
> }
>
>
> /******************************************************************/
> Catalog.java
>
> package org.sibum.amazon;
> import java.util.List;
> import java.util.ArrayList;
> public class Catalog{
> private String keyword;
> private String productGroup;
>
> private List productos= new ArrayList();
> public Catalog() { }
>
> public void addProducto(org.sibum.amazon.Product p) {
> productos.add(p);
> }
> public List getProductos() {
> return productos;
> }
>
> public String getKeyword() {
> return keyword;
> }
> public void setKeyword(String k) {
> this.keyword =k;
> }
>
> public String getProductGroup() {
> return productGroup;
> }
> public void setProductGroup(String p) {
> this.productGroup =p;
> }
> }
>
>
> /********************************************************/
>
> VerProductos.java
>
>
> package org.sibum.amazon;
> import org.exolab.castor.xml.*;
> import org.exolab.castor.mapping.*;
> import java.io.InputStreamReader;
> import java.io.FileReader;
> import java.io.InputStream;
> import java.net.URL;
> import java.util.List;
> import java.util.Iterator;
>
> public class VerProductos{
>
> public static void main(String args[]) {
> try {
> Mapping mapping = new Mapping();
> mapping.loadMapping("mapping.xml");
> Unmarshaller un = new
> Unmarshaller(org.sibum.amazon.Catalog.class);
> un.setMapping( mapping );
> URL url=new
> URL("http://rcm.amazon.com/e/cm?t=universitstea-20&l=st1&search=XML&mode=books&p=102&o=1&f=xml";);
> //FileReader in = new FileReader("producto.xml");
>
> InputStream in=url.openStream();
>
>
> Catalog cat = (Catalog) un.unmarshal(new InputStreamReader(in));
>
> in.close();
> System.out.println( cat.getKeyword() );
>
> List productos= cat.getProductos();
> Iterator iter = productos.iterator();
> while ( iter.hasNext() ) {
> Product product= (Product) iter.next();
> System.out.println("\n" + product.getTitle() );
> System.out.println("-----------------------------");
> }
>
>
> } catch (Exception e) {
> System.out.println( e );
> }
> }
> }
>
>
>
> mapping.xml
>
>
> <?xml version="1.0"?>
> <!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Object Mapping DTD Version
> 1.0//EN" "http://castor.exolab.org/mapping.dtd";>
> <mapping>
> <description>Archivo mapping para la lista de productos.</description>
>
> <class name="org.sibum.amazon.Product">
> <field name="ranking" type="string"/>
> <field name="title" type="string" />
> <field name="asin" type="string" />
> <field name="author" type="string" />
> <field name="image" type="string" />
> <field name="smallImage" type="string" />
> <field name="ourPrice" type="string"/>
> <field name="listPrice" type="string" />
> <field name="releaseDate" type="string" />
> <field name="binding" type="string" />
> <field name="availability" type="string" />
> <field name="taggedURL" type="string" />
> </class>
>
> <class name="org.sibum.amazon.Catalog">
> <field name="keyword" type="string"/>
> <field name="productGroup" type="string"/>
> <field name="productos" type="org.sibum.amazon.Product"
> collection="collection" />
> </class>
>
> </mapping>
>
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