Hi Keith,
Thanks for your response. I am trying to understand the way mapping file is
created based on the schema. When I use the following mapping, the XML do not contain
"items" element. That's the reason the error occurs. Correct? How do I resolve this?
<class cst:name="JasperScore">
<description>Default mapping for class JasperScore</description>
<map-to cst:xml="jasperScore"/>
<field cst:name="items" cst:type="CourseAccess"
get-method="enumerateJasperScoreItem" cst:collection="enumerate">
<bind-xml name="jasperScoreItem" node="element"/>
</field>
</class>
<class cst:name="JasperScoreItem">
<map-to cst:xml="jasperScoreItem"/>
<field cst:name="courseAccess" cst:type="CourseAccess">
<bind-xml name="courseAccess" node="element"/>
</field>
</class>
XML would be like this,
<jasperScore>
<courseAccess> </courseAccess>
<courseAccess> </courseAccess>
</jasperScore>
>From the following examples, If I use foo_version_1.xml, I get the "unable to find
>FieldDescriptor error". But If I change to foo_version_2.xml structure, default
>source generator and mapping file works fine. Please let me know how can I resolve
>the issue with foo_version_1.xml.
Thanks for your time & help.
foo_version_1.xml
------------------------
<?xml version="1.0" encoding="UTF-8"?>
<foo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="C:\ben\foo\foo_version1.xsd">
<fooChild id="1">
<fooChildElement fooValue="A">
<key name="abc" value="111"/>
<key name="def" value="222"/>
<key name="ghi" value="333"/>
</fooChildElement>
<fooChildElement fooValue="B">
<key name="abc" value="111"/>
<key name="def" value="222"/>
<key name="ghi" value="333"/>
</fooChildElement>
</fooChild>
<fooChild id="2">
<fooChildElement fooValue="C">
<key name="jkl" value="444"/>
<key name="mno" value="555"/>
<key name="pqr" value="666"/>
</fooChildElement>
<fooChildElement fooValue="D">
<key name="abc" value="111"/>
<key name="def" value="222"/>
<key name="ghi" value="333"/>
</fooChildElement>
</fooChild>
</foo>
foo_version_2.xml
------------------------
<?xml version="1.0" encoding="UTF-8"?>
<foo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="C:\ben\foo\foo_version2.xsd">
<fooChildren>
<fooChild id="1">
<fooChildElements>
<fooChildElement fooValue="A">
<key name="abc" value="111"/>
<key name="def" value="222"/>
<key name="ghi" value="333"/>
</fooChildElement>
<fooChildElement fooValue="B">
<key name="abc" value="111"/>
<key name="def" value="222"/>
<key name="ghi" value="333"/>
</fooChildElement>
</fooChildElements>
</fooChild>
<fooChild id="2">
<fooChildElements>
<fooChildElement fooValue="C">
<key name="jkl" value="444"/>
<key name="mno" value="555"/>
<key name="pqr" value="666"/>
</fooChildElement>
<fooChildElement fooValue="D">
<key name="abc" value="111"/>
<key name="def" value="222"/>
<key name="ghi" value="333"/>
</fooChildElement>
</fooChildElements>
</fooChild>
</fooChildren>
</foo>
-----Original Message-----
From: Keith Visco [mailto:[EMAIL PROTECTED]
Sent: Friday, February 27, 2004 2:35 PM
To: [EMAIL PROTECTED]
Subject: Re: [castor-dev] unable to find FieldDescriptor error
The source generator binding files, used to help control the source
generation, are not the same as the runtime mapping files that are used
in the marshalling/unmarshalling framework.
Please see here for more details:
http://castor.exolab.org/sourcegen.html#Binding-File
--Keith
bjsp wrote:
>
> Additional Information:
> This time I tried to generate Java source using the mapping xml. The
> same error appears here too. I suspect there is something wrong in the
> mapping file. Please help. Thanks...
>
> C:\ben\jasper>java org.exolab.castor.builder.SourceGenerator -i
> jasper.xsd -binding-file jasperMapp
> ing.xml
> --Unable to load a binding file due to the following Exception:
> --------------------------------
> Stack Trace for :org.xml.sax.SAXException: unable to find
> FieldDescriptor for 'class' in ClassDescr
> iptor of binding{file: file:///C:/ben/jasper/jasperMapping.xml; line: 2;
> column: 32}
> org.xml.sax.SAXException: unable to find FieldDescriptor for 'class' in
> ClassDescriptor of binding
> at
> org.exolab.castor.xml.UnmarshalHandler.startElement(UnmarshalHandler.java:1127)
> at
> org.apache.xerces.parsers.SAXParser.startElement(SAXParser.java:1340)
> at
> org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidator.java:1284
> )
> at
> org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanner.java:1812)
>
> at
> org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentSca
> nner.java:1188)
> at
> org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:387)
> at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1099)
> at
> org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:555)
> at
> org.exolab.castor.builder.binding.BindingLoader.loadBinding(BindingLoader.java:130)
> at
> org.exolab.castor.builder.binding.BindingLoader.createBinding(BindingLoader.java:250)
> at
> org.exolab.castor.builder.SourceGenerator.main(SourceGenerator.java:1121)
> --------------------------------
> org.xml.sax.SAXException: unable to find FieldDescriptor for 'class' in
> ClassDescriptor of binding{
> file: file:///C:/ben/jasper/jasperMapping.xml; line: 2; column: 32}
> at
> org.exolab.castor.builder.binding.BindingLoader.loadBinding(BindingLoader.java:196)
> at
> org.exolab.castor.builder.binding.BindingLoader.createBinding(BindingLoader.java:250)
> at
> org.exolab.castor.builder.SourceGenerator.main(SourceGenerator.java:1121)
> -- No binding file will be used
>
> -----Original Message-----
> From: bjsp [mailto:[EMAIL PROTECTED]
> Sent: Friday, February 27, 2004 10:52 AM
> To: [EMAIL PROTECTED]
> Subject: [castor-dev] unable to find FieldDescriptor error
>
> Hi,
> I am getting unable to find FieldDescriptor error. I am using
> castor-0.9.4.3-xml.jar. Attached is the error and the mapping file. This
> mapping file is autogenerated using Castor source code generator and
> mapping tool. Any help would be highly appreciated. Thanks in advance.
>
> Mapping [EMAIL PROTECTED]
> unmarClass [EMAIL PROTECTED]
> org.xml.sax.SAXException: unable to find FieldDescriptor for
> 'courseAccess' in ClassDescriptor of jasperScore
> at
> org.exolab.castor.xml.UnmarshalHandler.startElement(UnmarshalHandler.java:1127)
> at org.apache.xerces.parsers.SAXParser.startElement(SAXParser.java:1340)
> at
> org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidator.java:1284)
> at
> org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanner.java:1812)
> at
> org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:1188)
> at
> org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:387)
> at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1099)
> at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:555)
> at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:487)
> at com.intellij.rt.execution.application.AppMain.main(Unknown Source)
> Process terminated with exit code 0
>
> Mapping File:
> -------------------
> <mapping xmlns="http://castor.exolab.org/";
> xmlns:cst="http://castor.exolab.org/";>
> <description>Castor generated mapping file</description>
> <class cst:name="JasperScore">
> <description>Default mapping for class JasperScore</description>
> <map-to cst:xml="jasperScore"/>
> <field cst:name="items" cst:type="JasperScoreItem"
> cst:collection="enumerate" get-method="enumerateJasperScoreItem">
> <bind-xml node="element"/>
> </field>
> </class>
> <class cst:name="JasperScoreItem">
> <description>Default mapping for class JasperScoreItem</description>
> <map-to cst:xml="jasperScore"/>
> <field cst:name="courseAccess" cst:type="CourseAccess">
> <bind-xml name="courseAccess" node="element"/>
> </field>
> </class>
> <class cst:name="CourseAccess">
> <description>Default mapping for class CourseAccess</description>
> <map-to cst:xml="courseAccess"/>
> <field cst:name="id" cst:type="java.lang.String" cst:required="true">
> <bind-xml name="id" node="attribute"/>
> </field>
> <field cst:name="status" cst:type="java.lang.String"
> cst:required="true">
> <bind-xml name="status" node="attribute"/>
> </field>
> <field cst:name="items" cst:type="CourseAccessItem"
> cst:collection="enumerate" get-method="enumerateCourseAccessItem">
> <bind-xml node="element"/>
> </field>
> </class>
> <class cst:name="CourseAccessItem">
> <description>Default mapping for class CourseAccessItem</description>
> <map-to cst:xml="courseAccess"/>
> <field cst:name="test" cst:type="Test">
> <bind-xml name="test" node="element"/>
> </field>
> </class>
> <class cst:name="Test">
> <description>Default mapping for class Test</description>
> <map-to cst:xml="test"/>
> <field cst:name="assetCode" cst:type="java.lang.String"
> cst:required="true">
> <bind-xml name="assetCode" node="attribute"/>
> </field>
> <field cst:name="scores" cst:type="Scores" cst:collection="array">
> <bind-xml name="scores" node="element"/>
> </field>
> <field cst:name="status" cst:type="java.lang.String">
> <bind-xml name="status" node="element"/>
> </field>
> <field cst:name="dateCreated" cst:type="java.lang.String">
> <bind-xml name="dateCreated" node="element"/>
> </field>
> <field cst:name="dateCompleted" cst:type="java.lang.String">
> <bind-xml name="dateCompleted" node="element"/>
> </field>
> </class>
> <class cst:name="Scores">
> <description>Default mapping for class Scores</description>
> <map-to cst:xml="scores"/>
> <field cst:name="items" cst:type="ScoresItem"
> cst:collection="enumerate" get-method="enumerateScoresItem">
> <bind-xml node="element"/>
> </field>
> </class>
> <class cst:name="ScoresItem">
> <description>Default mapping for class ScoresItem</description>
> <map-to cst:xml="scores"/>
> <field cst:name="score" cst:type="Score">
> <bind-xml name="score" node="element"/>
> </field>
> </class>
> <class cst:name="Score">
> <description>Default mapping for class Score</description>
> <map-to cst:xml="score"/>
> <field cst:name="name" cst:type="java.lang.String"
> cst:required="true">
> <bind-xml name="name" node="attribute"/>
> </field>
> <field cst:name="value" cst:type="java.lang.String"
> cst:required="true">
> <bind-xml name="value" node="attribute"/>
> </field>
> </class>
> </mapping>
>
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