Thanks you very much. And don't worry about your English .. ;-).
Werner
Alatalo, Antoni wrote:
Please find attached document for HOW_TO section.
I did use as example page
http://www.castor.org/how-to-wrap-a-collection-with-a-wrapper-element.html
HTM Table starts from Castor image
regards.
Antoni
-----Original Message-----
From: Werner Guttmann [mailto:[EMAIL PROTECTED]
Sent: 11. huhtikuuta 2008 13:01
To: [email protected]
Subject: Re: [castor-user] How to use hierarchical objects with wrapper
Alatalo, Antoni wrote:
All right it works. I did misundestund about container element. After
removing it all works fine.
Thank you very much.
As you see the result is very clean. Only two files and POJO does not
have any dependencies on Castor. Very nice.
I think you can place this example to the Cator site to provide simple
Hierarchy functionality.
Would you mind - given the time I have spent on helping you - coming up with a
well-structured HOW-TO document for the XML part of Castor ?
Werner
Thank you very much Antoni
-----Original Message----- From: Werner Guttmann
[mailto:[EMAIL PROTECTED] Sent: 11. huhtikuuta 2008 12:30 To:
[email protected] Subject: Re: [castor-user] How to use
hierarchical objects with wrapper
Using your test case (the one supplied below), I get the following
output after marshalling:
<foo:foo xmlns:foo="http://example.com/foo"; name="foo"> <foo:children>
<foo:foo name="foo1"/> <foo:foo name="foo2"/> </foo:children>
</foo:foo>
Which - as far as I can tell - is what you wanted, correct ?
Werner
Alatalo, Antoni wrote:
Hi, Thank you for reply. Still doesn't work MAPPING: <?xml
version="1.0"?> <!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Mapping
DTD Version 1.0//EN" "http://castor.org/mapping.dtd";> <mapping>
<class name="com.example.Foo" auto-complete="false"> <map-to
xml="foo" ns-uri="http://example.com/foo"; ns-prefix="foo" /> <field
name="name" type="java.lang.String"> <bind-xml name="name"
node="attribute" /> </field> <field name="children"
collection="collection" type="com.example.Foo" container="false">
<bind-xml name="foo" location="children"/> </field> </class>
</mapping>
Gets the output <foo:foo xmlns:foo="http://example.com/foo";
name="foo"> <foo> <foo:foo name="foo1"> <foo /> </foo:foo> <foo:foo
name="foo2"> <foo /> </foo:foo> </foo> </foo:foo>
And should be: <foo:foo name="foo"
xmlns:foo="http://example.com/foo";> <foo:children> <foo:foo
name="foo1" /> <foo:foo name="foo2" /> </foo:children> </foo:foo>
The location attribute changes children name to foo, nothing else.
Still name of element is without namespace prefix. Another empty
<children/> (or with location <foo/>) element exists. How it can be
removed?
Thank you. Antoni
-----Original Message----- From: Werner Guttmann
[mailto:[EMAIL PROTECTED] Sent: 11. huhtikuuta 2008 11:41
To: [email protected] Subject: Re: [castor-user] How to use
hierarchical objects with wrapper
Actually, please ignore my last comment re: the use of the
'container' attribute. It won't work in your case, and switching to
the use of the location attribute is the correct way forward.
Regards Werner
Werner Guttmann wrote:
Hi Antoni,
looking at the missing namespace prefix on the children element, I
changed the mapping as follows (and introduced a location attribute
on the <bind-xml> definition for the children field mapping. That
did it for me.
<mapping> <class name="xml.children.Foo" auto-complete="false">
<map-to xml="foo" ns-uri="http://example.com/foo"; ns-prefix="foo"
/> <field name="name" type="java.lang.String"> <bind-xml name="name"
node="attribute" /> </field> <field name="children"
collection="collection" type="xml.children.Foo"> <bind-xml
name="foo" location="children" /> </field> </class> </mapping>
I will have another look at the use of the container attribute, as
it looks like a bug to me .... but I think that the solution shown
should satisfy you.
Werner
Alatalo, Antoni wrote:
To continue this conversation question once again: Is there a way
to have xsd and POJO like I have (or yours modified xsd) and get
the ouput I expect by using castors mapping file? 1.
children with namespace prefix 2. empty children are not marhaled?
Thank you a lot for your requests Antoni
-----Original Message----- From: Alatalo, Antoni
[mailto:[EMAIL PROTECTED] Sent: 10. huhtikuuta 2008
13:49 To: [email protected] Subject: RE: [castor-user] How
to use hierarchical objects with wrapper
Hi, I've did generate code and it's not right way for me.
Enstead of one domain class I get six classes. From simple 20 line
class I get something too complex.
As I mentioned before I want to use same domain structure
independent from the technologies. In the other words no hibernate,
castor or axis should be present in the model.
Of course here can be three different domain models, one is my own,
second generated by castor, third database layer model.
But it requers mappings between models and is not what we are
looking.
The ideal is something like castors mapping file. It's a glue
between java class and xsd schema. Only thing is to get it work in
every situation.
Regards. Antoni
-----Original Message----- From: Werner Guttmann
[mailto:[EMAIL PROTECTED] Sent: 10. huhtikuuta 2008
13:23 To: [email protected] Subject: Re: [castor-user] How
to use hierarchical objects with wrapper
Hi,
there you are:
**** XML schema:
<?xml version="1.0" encoding="UTF-8"?> <schema
xmlns="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://example.com/foo";
xmlns:tns="http://example.com/foo";
elementFormDefault="qualified"> <complexType name="foo"> <sequence>
<element name="children" minOccurs="0"> <complexType> <sequence>
<element name="foo" type="tns:foo"
maxOccurs="unbounded"> </element> </sequence> </complexType>
</element> </sequence> <attribute name="name"></attribute>
</complexType> <!-- <element name="foo"
type="tns:fooType"></element> --> </schema>
*** builder properties:
# Selects the Java class mapping for <xsd:element>'s and
<xsd:complexType>'s. # Legal values are 'element' and 'type'.
For 'element' mapping, the source # generator creates a Java class
hierarchy based on elements in the XML Schema. # For 'type'
mapping, the class hierarchy is based on types in the XML Schema. #
Default is 'element'. #
org.exolab.castor.builder.javaclassmapping=type
Everything else is standard, so please generate the classes
yourself. Please note that I changed the XML schema to meet the
expected XML defined in the test case.
Regards Werner Guttmannb
Alatalo, Antoni wrote:
Please, send me schema you modified and class you are generated
Seems that I send you wrong version of xsd. Here is what I'm
using. Only different is ref <?xml version="1.0"
encoding="UTF-8"?> <schema
xmlns="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://example.com/foo";
xmlns:tns="http://example.com/foo";
elementFormDefault="qualified"> <complexType name="fooType">
<sequence> <element name="children" minOccurs="0"
nillable="false"> <complexType> <sequence> <element ref="tns:foo"
maxOccurs="unbounded"> </element> </sequence> </complexType>
</element> </sequence> <attribute name="name"></attribute>
</complexType> <element name="foo"
type="tns:fooType"></element> </schema>
Terv. Antoni
-----Original Message----- From: Werner Guttmann
[mailto:[EMAIL PROTECTED] Sent: 10. huhtikuuta 2008
12:45 To: [email protected] Subject: Re: [castor-user] How
to use hierarchical objects with wrapper
Just to let you know, after modifying your XML schema slightly, I
was able to pruduce the desired output as follows just by
generating classes from the XML schema given, without having to
write a mapping file.
Regards Werner Committer, Castor
Alatalo, Antoni wrote:
Hi, Here is all in nutshell: SCHEMA: <?xml version="1.0"
encoding="UTF-8"?> <schema
xmlns="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://example.com/foo";
xmlns:tns="http://example.com/foo";
elementFormDefault="qualified"> <complexType name="fooType">
<sequence> <element name="children"
minOccurs="0"> <complexType> <sequence> <element name="child"
type="tns:fooType"
maxOccurs="unbounded"> </element> </sequence> </complexType>
</element> </sequence> <attribute name="name"></attribute>
</complexType> <element name="foo"
type="tns:fooType"></element> </schema>
CASTOR <?xml version="1.0"?> <!DOCTYPE mapping PUBLIC
"-//EXOLAB/Castor Mapping DTD Version 1.0//EN"
"http://castor.org/mapping.dtd";> <mapping> <class
name="com.example.Foo" auto-complete="false"> <map-to xml="foo"
ns-uri="http://example.com/foo"; ns-prefix="foo"
/> <field name="name" type="java.lang.String"> <bind-xml
name="name" node="attribute" /> </field> <field name="children"
collection="collection"
type="com.example.Foo" container="false"> </field> </class>
</mapping>
BEAN package com.example; import java.util.Collection;
public class Foo { private String name; private Collection<Foo>
children;
public Foo(){} public Foo(String name){ setName(name); } public
Collection<Foo> getChildren() { return children; } public void
setChildren(Collection<Foo> children) { this.children = children;
} public String getName() { return name; } public void
setName(String name) { this.name = name; } }
TESTCASE: package com.example;
import java.io.IOException; import java.io.StringReader; import
java.io.StringWriter; import java.util.Collection; import
java.util.HashSet;
import junit.framework.TestCase; import
org.exolab.castor.xml.XMLContext; import
org.exolab.castor.mapping.Mapping; import
org.exolab.castor.mapping.MappingException; import
org.exolab.castor.xml.MarshalException; import
org.exolab.castor.xml.Unmarshaller; import
org.exolab.castor.xml.Marshaller; import
org.exolab.castor.xml.ValidationException;
import com.example.Foo;
public class CastorFooTest extends TestCase { Mapping mapping =
null; XMLContext context = null; public void
setUp() throws IOException, MappingException{ mapping = new
Mapping();
mapping.loadMapping("src/META-INF/castor/foo-castor.xml");
context = new XMLContext(); context.addMapping(mapping); } public
void testMarhallFoo() throws IOException, MappingException,
MarshalException, ValidationException{ Marshaller marshaller =
context.createMarshaller(); StringWriter writer = new
StringWriter(); marshaller.setWriter(writer);
marshaller.setMarshalAsDocument(false);
marshaller.setMapping(mapping);
marshaller.setSuppressNamespaces(false);
marshaller.marshal(getFoo()); assertEquals(expected,
writer.getBuffer().toString()); } public void
testUnMarhallFoo() throws IOException, MappingException,
MarshalException, ValidationException{ Unmarshaller unmarshaller
= context.createUnmarshaller(); StringReader reader = new
StringReader(expected); Foo result =
(Foo)unmarshaller.unmarshal(reader); Foo exp = getFoo();
assertEquals(exp.getName(), result.getName()); } private Foo
getFoo(){ Foo foo = getFoo(""); Collection<Foo> children = new
HashSet<Foo>(); children.add(getFoo("2"));
children.add(getFoo("1")); foo.setChildren(children); return foo;
} private Foo getFoo(String s){ Foo foo = new
Foo("foo".concat(s)); return foo; } private String expected =
"<foo:foo xmlns:foo=\"http://example.com/foo\";
name=\"foo\"><foo:children><foo:foo
name=\"foo1\"></foo:foo><foo:foo
name=\"foo2\"></foo:foo></foo:children></foo:foo>"; }
Expected output <?xml version="1.0" encoding="UTF-8"?> <foo:foo
name="foo" xmlns:foo="http://example.com/foo";>
<foo:children> <foo:foo name="foo1"/> <foo:foo name="foo2"/>
</foo:children> </foo:foo>
OUTPUT I GET: <?xml version="1.0" encoding="UTF-8"?> <foo:foo
name="foo" xmlns:foo="http://example.com/foo";>
<children> - ERROR NUMBER 1 <foo:foo name="foo1"> <children /> -
ERROR NUMBER 2 </foo:foo> <foo:foo name="foo2"> <children /> -
ERROR NUMBER 2 </foo:foo> </children> - ERROR NUMBER 1 </foo:foo>
Output I get isn't valid: 1. <children> element must have foo
prefix as all others: <foo:children> 2. there must not be empty
<children/> element at all
Regards. Antoni
-----Original Message----- From: Werner Guttmann
[mailto:[EMAIL PROTECTED] Sent: 9. huhtikuuta 2008
15:13 To: [email protected] Subject: Re:
[castor-user] How to use hierarchical objects with wrapper
Alatalo, Antoni wrote:
Hi, I have Object A that has Collection of Objects A.
Normal hierarchy structure. I got to work it almost well except
two details. The collection is wrapped. It should look like this
Lets name namespace like bar <bar:foo name="1"> <bar:children>
<bar:foo name="2*"*/> <bar:foo name="3"/> </bar:children>
</bar:foo>
The problem is that chioldren while marhalling doen't get bar
prefix. This is output after marshalling <bar:foo name="1">
<children> <bar:foo name="2*"*> <children/> </bar:foo> <bar:foo
name="3"> <children/> </bar:foo> </children> </bar:foo>
How can i configure mapper to use prefix with "children"
wrapper? Without this xml is not valid!
What version of Castor are you using ? And what does your mapping
for the relevant classes look like ? It looks like you are using
the locations attribute on the field mapping for the 'bar'
children ?
Teh next thing is empty collection. How can i configure mapper
to exclude empty or null not required values?
Can you show us some sample XML that highlights your problem ? It
just isn't fully clear to me what the problem is.
Thank you *Antoni Alatalo *Ohjelmistoasiantuntija Kuntatoimiala,
sosiaalitoimi _________________________________________
*Logica **- Releasing your potential
*Karvaamokuja 2 PL 38 00381 Helsinki Vaihde: 010 302 010
Suora: 040 583 1097 [EMAIL PROTECTED] _www.logica.fi_
<http://www.logicacmg.fi> WM-datan nimi on nyt *Logica.*
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------------------------------------------------------------------------
How to work with hierarchical structure
------------------------------------------------------------------------
*Intended Audience <#Intended-Audience>*
*Prerequisites <#Prerequisites>*
*Basic concept <#Basic-concept>*
*Java entities <#Java-entities>*
*XML schema <#XML-schema>*
*Required XML output <#Required-XML-output>*
*Mapping file <#Mapping-file>*
------------------------------------------------------------------------
Intended Audience
Anyone who wants to work with hierarchical structure.
This document helps people to get familiar with the basic concepts and
shows an example.
Prerequisites
None.
Basic concept
When you have a object that contains collection of same objects, and you
want to marchal it to the wrapped container, then use example below.
Java entities
For example, if you have the following classes:
package com.example;
import java.util.Collection;
public class Foo {
private String name;
private Collection<Foo> children;
public Foo(){}
public Foo(String name){
setName(name);
}
public Collection<Foo> getChildren() {
return children;
}
public void setChildren(Collection<Foo> children) {
this.children = children;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
XML schema
and you have XML schema like:
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://example.com/foo";
xmlns:tns="http://example.com/foo"; elementFormDefault="qualified">
<complexType name="fooType">
<sequence>
<element name="children" minOccurs="0">
<complexType>
<sequence>
<element name="foo"
type="tns:fooType"
maxOccurs="unbounded">
</element>
</sequence>
</complexType>
</element>
</sequence>
<attribute name="name"></attribute>
</complexType>
</schema>
Required XML output
and you want to have Castor generate XML which looks like:
<foo:foo xmlns:foo="http://example.com/foo"; name="foo">
<foo:children>
<foo:foo name="foo1" />
<foo:foo name="foo2" />
</foo:children>
</foo:foo>
Mapping file
then you would use a mapping like:
<?xml version="1.0"?>
<!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN"
"http://castor.org/mapping.dtd";>
<mapping>
<class name="com.example.Foo" auto-complete="false">
<map-to xml="foo" ns-uri="http://example.com/foo";
ns-prefix="foo" />
<field name="name" type="java.lang.String">
<bind-xml name="name" node="attribute" />
</field>
<field name="children" collection="collection"
type="com.example.Foo">
<bind-xml name="foo" location="children"/>
</field>
</class>
</mapping>
------------------------------------------------------------------------
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