Hi Folks,
When I try to marshal a collection (specifically a Map) that contains
another collection (specifically a List), it marshals things in a sensible
way, so for something like a Map<Date>, List<String>>, it'll generate the
following XML;
<my-collection>
<strings>
<key xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:type="date">2008-05-05T21:23:19.906+01:00</key>
<value xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:type="java:java.lang.String">Hello</value>
<value xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:type="java:java.lang.String">World!</value>
</strings>
</my-collection>
but is unable to unmarshall them complaining that the "value" is repeated.
As in,
*org.exolab.castor.xml.MarshalException: element "value" occurs more than
once. (parent class: org.exolab.castor.mapping.MapItem)
location: /strings/strings/value{File: [not available]; line: 6; column:
117}*
This seems to be very similar to bugs 1313, 1551 etc, but although they say
its been resolved I get still get the problem on 1.2 of Castor. I can't
quiet figure out what those bugs are telling me, or how to apply the patches
or run the test case in 1313.
I've attached a test case that demonstrates the problem.
Any tips? Thanks in advance,
Toby
package com.racediary.model;
import java.util.Date;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
public class MyCollection {
private Map<Date, List<String>> strings;
public MyCollection() {
strings = new Hashtable<Date, List<String>>();
}
public Map<Date, List<String>> getStrings() {
return strings;
}
public void setStrings(Map<Date, List<String>> strings) {
this.strings = strings;
}
}
package com.racediary.model;
import java.io.InputStream;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import junit.framework.TestCase;
import org.exolab.castor.mapping.Mapping;
import org.exolab.castor.mapping.MappingException;
import org.exolab.castor.xml.Marshaller;
import org.exolab.castor.xml.Unmarshaller;
import org.xml.sax.InputSource;
/**
* @see https://jira.codehaus.org/browse/CASTOR-1551
*/
public class MyCollectionTest extends TestCase {
// grrrr
public void testCastorUnmarshallsCollections() throws Exception {
Date date = new Date();
MyCollection collection = setupData(date);
Mapping mapping = new Mapping();
mapping.loadMapping(getMapping());
StringWriter writer = new StringWriter();
Marshaller marshaller = new Marshaller(writer);
marshaller.setMapping(mapping);
marshaller.marshal(collection);
String xml = writer.toString();
assertNotNull(xml);
assertTrue(xml != "");
System.out.println(xml);
Unmarshaller unmarshaller = new Unmarshaller();
unmarshaller.setMapping(mapping);
MyCollection deseralised = (MyCollection) unmarshaller.unmarshal(new StringReader(xml));
List<String> val = (List<String>) deseralised.getStrings().get(date);
assertTrue(val != null);
assertEquals(2, val.size());
}
private MyCollection setupData(Date date) {
MyCollection col = new MyCollection();
List<String> strings = new ArrayList<String>();
strings.add("Hello");
strings.add("World!");
col.getStrings().put(date, strings);
return col;
}
private InputSource getMapping() throws MappingException {
InputStream resourceAsStream = this.getClass().getResourceAsStream("mycollection.xml");
if (resourceAsStream == null)
throw new MappingException("Unable to find mapping.xml");
return new InputSource(resourceAsStream);
}
}
<mapping>
<class name="com.racediary.model.MyCollection">
<field name="strings" collection="map">
<bind-to name="strings">
<class name="org.exolab.castor.mapping.MapItem">
<field name="key" type="java.util.Date">
<bind-xml name="date" node="attribute" />
</field>
<field name="value" type="java.util.List">
<bind-xml name="string" />
</field>
</class>
</bind-to>
</field>
</class>
</mapping>
---------------------------------------------------------------------
To unsubscribe from this list, please visit:
http://xircles.codehaus.org/manage_email
