Hello Ralf,
now I managed to get what I want! I started the other way round as you
suggestet by marshalling my objects.
My Root Object:
import java.util.ArrayList;
import java.util.Collection;
public class Root {
private Collection collection;
public Root() {
this.collection = new ArrayList();
MyCollectionItem item1 = new MyCollectionItem();
item1.setValue("foo");
MyCollectionItem item2 = new MyCollectionItem();
item2.setValue("bar");
Collection innerCollection1 = new ArrayList();
innerCollection1.add(item1);
innerCollection1.add(item2);
MyCollectionItem item3 = new MyCollectionItem();
item3.setValue("baz");
Collection innerCollection2 = new ArrayList();
innerCollection2.add(item3);
this.collection.add(innerCollection1);
this.collection.add(innerCollection2);
}
public Collection getCollection() {
return collection;
}
public void setCollection(Collection collection) {
this.collection = collection;
}
}
My sample class contained in my inner collection:
public class MyCollectionItem {
private String value;
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
My mapping.xml:
<?xml version="1.0"?>
<!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN"
"http://castor.org/mapping.dtd";>
<mapping>
<class name="Root">
<map-to xml="collection-of-collections" />
<field name="collection" collection="arraylist">
<bind-xml name="collection"/>
</field>
</class>
<class name="MyCollectionItem">
<map-to xml="collection-item"/>
<field name="value">
<bind-xml node="text"/>
</field>
</class>
</mapping>
The resulting xml (have to get rid of the schema information, but I'll find out
how...):
<collection-of-collections>
<collection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:type="java:java.util.ArrayList">
<collection-item
xsi:type="collection-item">foo</collection-item>
<collection-item
xsi:type="collection-item">bar</collection-item>
</collection>
<collection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:type="java:java.util.ArrayList">
<collection-item
xsi:type="collection-item">baz</collection-item>
</collection>
</collection-of-collections>
In my opinion this could be a example of using collecitons of collections for
the test suite. I wasn't able to get the test working
ctfrun -text
../xmlctf/tests/MasterTestSuite/mapping/collections\CollectionOfCollections
... some stuff ...
There was 1 failure:
1) Test mapping of Collection of
Collection#Test01_ReferenceDocument(org.castor.xmlctf.TestWithReferenceDocument)junit.framework.AssertionFailedError:
Exception
Unmarshaling from disk org.exolab.castor.xml.MarshalException{File: [not
available]; line: 6; column: 17}
at
org.castor.xmlctf.TestWithReferenceDocument.runTest(TestWithReferenceDocument.java:168)
at
org.castor.xmlctf.CastorTestSuiteRunner.main(CastorTestSuiteRunner.java:167)
I used MapOfCollections test as a basis and changed all files and values.
Best regards
-------- Original-Nachricht --------
> Datum: Fri, 19 Oct 2007 14:53:09 +0200
> Von: Ralf Joachim <[EMAIL PROTECTED]>
> An: [email protected]
> Betreff: Re: [castor-user] Collection of Collections
> BaBowe, I usually start marshalling my objects as it is much easier to
> tune your mapping at marshalling because you can see the XML what castor
> creates with your mapping. In every case I had unmarshalling also worked
> as expected thereafter.
>
> Regards
> Ralf
>
> [EMAIL PROTECTED] schrieb:
> > Hi,
> >
> > I still don't know how to get it right. Example for a collection of
> collections:
> > <collection-of-collections>
> > <collection>
> > <collection-item>foo</collection-item>
> > <collection-item>bar</collection-item>
> > </collection>
> > <collection>
> > <collection-item>baz</collection-item>
> > </collection>
> > </collection-of-collections>
> >
> > My mapping so far:
> > <mapping>
> > <class name="CollectionItem">
> > <map-to xml="collection-of-collections" />
> > <field name="collection" collection="collection">
> > <bind-xml name="collection">
> > <class name="CollectionItem">
> > <field name="collection" collection="collection"
> type="string">
> > <bind-xml name="collection-item" />
> > </field>
> > </class>
> > </bind-xml>
> > </field>
> > </class>
> > </mapping>
> >
> > The CollectionItem class:
> > import java.util.Collection;
> > public class CollectionItem {
> > private Collection collection;
> > public Collection getCollection() {
> > return collection;
> > }
> > public void setCollection(Collection collection) {
> > this.collection = collection;
> > }
> > }
> >
> > Exception when unmarshalling XML:
> > java.lang.NullPointerException
> > at
> org.exolab.castor.xml.util.XMLFieldDescriptorImpl.hashCode(XMLFieldDescriptorImpl.java:713)
> > at java.util.HashMap.hash(HashMap.java:261)
> > at java.util.HashMap.put(HashMap.java:379)
> > at java.util.HashSet.add(HashSet.java:192)
> > at
> org.exolab.castor.xml.UnmarshalState.markAsUsed(UnmarshalState.java:204)
> > at
> org.exolab.castor.xml.UnmarshalHandler.endElement(UnmarshalHandler.java:986)
> > at
> org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.java:250)
> > at
> org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.java:183)
> > at
> org.exolab.castor.xml.util.DOMEventProducer.processChildren(DOMEventProducer.java:334)
> > at
> org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.java:248)
> > at
> org.exolab.castor.xml.util.DOMEventProducer.process(DOMEventProducer.java:183)
> > at
> org.exolab.castor.xml.util.DOMEventProducer.start(DOMEventProducer.java:111)
> > at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:631)
> > at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:741)
> >
> > -------- Original-Nachricht --------
> >> Datum: Fri, 19 Oct 2007 12:40:04 +0200
> >> Von: Werner Guttmann <[EMAIL PROTECTED]>
> >> An: [email protected]
> >> Betreff: Re: [castor-user] Collection of Collections
> >
> >> Hi
> >>
> >> [EMAIL PROTECTED] wrote:
> >>> I couldn't find the example. I just found
> >>>
> >>
> castor-1.1.2.1\xmlctf\tests\MasterTestSuite\mapping\collections\Maps\NestedMaps\MapOfCollections.
> >>> I don't know how to transfer that example to work with collection of
> >>> collections.
> >> Well, within the mapping for the Result class, you will have another
> >> collection mapping for your nested collection. Nothing special, just a
> >> plain field mapping.
> >>> Another question was regarded to collections: Is there a way to map a
> >>> collection containing different types. <root> <mycollection>
> >>> <string>test1</string> <integer>1</integer> <integer>2</integer>
> >>> <string>test2</string> </mycollection> </root>
> >> Not to my knowledge.
> >>
> >>> I couldn't find a example for this and can't imagine how to do it as
> >>> I think that a type attribute for a <field collection="collection"/>
> >>> is required. -------- Original-Nachricht --------
> >>>> Datum: Thu, 18 Oct 2007 13:47:21 +0200 Von: Werner Guttmann
> >>>> <[EMAIL PROTECTED]> An: [email protected] Betreff: Re:
> >>>> [castor-user] Collection of Collections
> >>>> Yes, it does. Have a look at teh current CTF test suite that has
> >>>> examples on how to map nested collections.
> >>>>
> >>>> Werner
> >>>>
> >>>> [EMAIL PROTECTED] wrote:
> >>>>> Hello,
> >>>>>
> >>>>> I would like to map the following XML to Java:
> >>>>>
> >>>>> <result> <bar>baz</bar> <rows> <row> <integer>123</integer>
> >>>>> <integer>321</integer> <string>foo</string> </row> <row>
> >>>>> <integer>123</integer> <integer isNull="true"/>
> >>>>> <string>foo</string> </row> </rows> </result>
> >>>>>
> >>>>> In Java words this is a Result class with one String bar
> >>>>> attribute and a rows Collection. The Collection contains row
> >>>>> elements which are themself Collection (a row can a have
> >>>>> arbitrary number of cells). My question is: does Castor support
> >>>>> Collections of Collections (rows->row->cell)? How would the
> >>>>> mapping xml file look like? If there is a problem for castor with
> >>>>> the mixed types of the cells, the following xml would be okay
> >>>>> too:
> >>>>>
> >>>>> <result> <bar>baz</bar> <rows> <row> <col
> >>>>> type="integer">123</col> <col type="integer">321</col> <col
> >>>>> type="string">foo</col> </row> <row> <col
> >>>>> type="integer">123</col> <col type="integer" isNull="true"/> <col
> >>>>> type="string">foo</col> </row> </rows> </result>
> >>>>>
> >>>>> Kind regards
> >>>> ---------------------------------------------------------------------
> >>>> To unsubscribe from this list please visit:
> >>>>
> >>>> http://xircles.codehaus.org/manage_email
> >>
> >> ---------------------------------------------------------------------
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> >>
> >> http://xircles.codehaus.org/manage_email
> >
>
> --
>
> Syscon Ingenieurbüro für Meß- und Datentechnik GmbH
> Ralf Joachim
> Raiffeisenstraße 11
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>
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