Hello,
I have built my project around Castor using an XML
Schema as starting point for my development.
The development process is planned to be as follows:
XSD => Java source (via SourceGenerator)
Java source => Java classes (Java compiler)
Java classes => mapping file for XML&JDO (MappingTool)
I have modified the MappingTool class, so that it also
integrates JDO mapping information in my mapping file.
The intention is to unmarshal an XML document
(described by the XSD) and persist it in the database.
Unfortunately, a construct in the XSD causes some
problems. This is it:
<element name="state">
<complexType mixed="true">
<attribute name="id" type="int" use="optional" />
<attribute name="state-moment" use="required">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="Unknown" />
<enumeration value="StateEnd" />
<enumeration value="StateBegin" />
</restriction>
</simpleType>
</attribute>
<attribute name="stamptime" type="string"
use="required" />
</complexType>
</element>
This element is referenced from a another element in
the schema.
First, I had let the SourceGenerator generate ONLY the
classes and NO class descriptors (with -gen-mapping
and -nodesc).
I get this mapping back from MappingTool:
<class cst:name="log.State"
cst:depends="log.Systemstates" cst:identity="id"
cst:key-generator="MAX">
<description>Default mapping for class
log.State</description>
<map-to cst:table="State" cst:xml="state" />
<field cst:name="valid" cst:type="boolean">
<sql name="valid" dirty="check" />
<bind-xml name="valid" node="attribute" />
</field>
<field cst:name="id" cst:type="integer">
<sql name="id" type="integer" dirty="check" />
<bind-xml name="id" node="attribute" />
</field>
<field cst:name="content" cst:type="string">
<sql name="content" type="char" dirty="check" />
<bind-xml name="content" node="element" />
</field>
<field cst:name="stamptime" cst:type="string">
<sql name="stamptime" type="char" dirty="check" />
<bind-xml name="stamptime" node="element" />
</field>
</class>
This gives me the following error when the unmarshal
method is called:
Illegal Text data found as child of: state
value: "INIT"{file: [not available]; line: 5;
column: 85}
at
org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:671)
The according XML line ist this:
<state state-moment="StateBegin"
stamptime="2005-10-25T11:46:09" >INIT</state>
---------------------------------
So I tried using the class descriptors. Unmarshalling
the XML document works now. But as soon as I try to
persist the data in the DB, I have to use the
generated mapping (form MappingTool). The call of
JDOManager.loadConfiguration results in the following
exception:
org.exolab.castor.mapping.MappingException: The Java
class log.types.StateStateMomentType is not
constructable -- it does not contain a default public
constructor
at
org.exolab.castor.mapping.loader.ClassDescriptorImpl.<init>(ClassDescriptorImpl.java:161)
Is my approach of using class descriptors AND a
mapping file the reason for this problem?
Is it possible to solve this?
Another question: Is it possible to use a
GerealizedFieldHandler WITHOUT a mapping file?
Any hint would be appreciated.
Stefan
___________________________________________________________
Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher kostenlos - Hier anmelden:
http://mail.yahoo.de
-------------------------------------------------
If you wish to unsubscribe from this list, please
send an empty message to the following address:
[EMAIL PROTECTED]
-------------------------------------------------
