[castor-dev] Re: exception: unable to find FieldDescriptor for...in ClassDescriptor of...

[Dede Ball]

Sorry, forgot to include the XML file used as input.  Here it is:

<?xml version="1.0" ?>
<weather>
<timestamp zone="EMT">12/18/2001 16:21</timestamp>
<current>
    <citycode>92152</citycode>
    <day>
        <name>Today</name>
        <conditions wxcode="38">M/CLOUDY</conditions>
        <temperature unit="F">47</temperature>
        <apparent_temperature unit="F">49</apparent_temperature>
        <wind_chill_temperature unit="F">45</wind_chill_temperature>
        <humidity unit="%">65</humidity>
        <pressure unit="INHG">29.96</pressure>
        <windspeed unit="MPH">4</windspeed>
        <wind_from>W</wind_from>
        <visibility unit="MI">10</visibility>
    </day>
</current>
</weather>

Dede Ball wrote:

Hi,

Does anyone have an experience with an error like this?  I expect it is a result of a problem with my mapping file.  Thanks in advance.

Here's the error:

org.xml.sax.SAXException: unable to find FieldDescriptor for 'citycode' in ClassDescriptor of
 current at java.lang.Throwable.fillInStackTrace(Native Method) at
 java.lang.Throwable.fillInStackTrace(Compiled Code) at java.lang.Throwable.(Compiled
 Code) at java.lang.Exception.(Compiled Code) at
 org.xml.sax.SAXException.(SAXException.java:38) at
 org.exolab.castor.xml.UnmarshalHandler.startElement(Compiled Code) at
 org.apache.xerces.parsers.SAXParser.startElement(Compiled Code) at
 org.apache.xerces.validators.common.XMLValidator.callStartElement(Compiled Code) at
 org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(Compiled
 Code) at org.apache.xerces.framework.XMLDocumentScanner.parseSome(Compiled Code)
 at org.apache.xerces.framework.XMLParser.parse(Compiled Code) at
 org.exolab.castor.xml.Unmarshaller.unmarshal(Compiled Code) at
 org.mitre.acis.portal.weather.weatherProvider.getContent(weatherProvider.java:139) at
 com.iplanet.portalserver.desktop.ProviderCaller.run(Compiled Code)
 

Here's the pertinent fragment of my mapping file:

<?xml version="1.0"?>

<mapping>
      <class name="org.mitre.acis.portal.weather.USCurrentWeather">
           <map-to xml="weather"/>
           <field name="TimeStamp"
                  type="org.mitre.acis.portal.weather.TimeStamp">
                   <bind-xml name="timestamp" node="element"/>
           </field>
           <field name="CurrentCondition"
                  type="org.mitre.acis.portal.weather.CurrentCondition">
                   <bind-xml name="current" node="element"/>
           </field>
      </class>

      <class name="org.mitre.acis.portal.weather.TimeStamp">
           <field name="Zone"
                  type="java.lang.String">
                   <bind-xml name="zone" node="attribute"/>
           </field>

           <field name="DateTime"
                  type="java.lang.String">
                   <bind-xml name="timestamp" node="text"/>
           </field>
      </class>

      <class name="org.mitre.acis.portal.weather.CurrentCondition">
           <map-to xml="current"/>
           <field name="CityCode"
                  type="java.lang.String">
                   <bind-xml name="citycode" node="text"/>
           </field>
      :
      :
      :
     </class>
</mapping>
 

Here's the pertinent fragment from CurrentCondition.java:

package org.mitre.acis.portal.weather;

import java.util.Vector;
import java.util.Enumeration;

public class CurrentCondition {

       private String cityCode;

       public void setCityCode(String inCityCode) {
              cityCode = inCityCode;
       }

       public String getCityCode() {
              return cityCode;
       }

 }