I have cleaned up my test case considerably; I think it's a lot more clear now. If you like, re-download at
http://pendaran.arborius.net/~jphekman/testcase.tgz * edit Mapper.java to point to correct file locations * export CLASSPATH=$CLASSPATH:build/classes:lib/castor-xml.jar:lib/xml-apis.jar:lib/xercesImpl.jar:lib/commons-logging.jar * ant build * java com.ingenta.Mapper * Note that there is a commented line in containerClass.xml; if you swap this in for the current field descriptor for getVscs(), you will see that the exception goes away. Also, I found the underlying problem (mine, not castor's) which had originally pushed me to make this syntax change. I will be returning to the working syntax in my project, and am no longer blocked. I'm more than happy to continue to help clarify this bug (assuming it is a bug and not just bad syntax -- but there should probably be a better error message in that case). Jessica On Wed, Nov 30, 2005 at 10:57:36PM -0600, Keith Visco wrote: > Hi Jessica, > > I haven't seen that problem before. Is it possible for you to send me a > working (ie compilable and demonstrates the problem) test case which I > can run locally? > > --Keith > > Jessica Perry Hekman wrote: > >Hi all. I have a class which has a method (getCurrency()) which returns > >type java.util.Currency. The doc seems to suggest that writing a custom > >field handler is the way to proceed, and provides good instruction on how > >to do so. I created: > > > >package com.ingenta.ics.api.rest.product; > > > >import org.exolab.castor.mapping.GeneralizedFieldHandler; > >import org.exolab.castor.mapping.FieldDescriptor; > > > >import java.util.Currency; > > > >/** > > * The FieldHandler for the Currency class > >**/ > >public class CurrencyFieldHandler > > extends GeneralizedFieldHandler > >{ > > > > public CurrencyFieldHandler() { > > super(); > > } > > > > public Object convertUponGet(Object value) { > > if (value == null) return null; > > Currency currency = (Currency)value; > > return currency.getCurrencyCode(); > > } > > > > > > public Object convertUponSet(Object value) { > > return Currency.getInstance((String)value); > > } > > > > public Class getFieldType() { > > return Currency.class; > > } > > > > public Object newInstance( Object parent ) > > throws IllegalStateException > > { > > //-- Since it's marked as a string...just return null, > > //-- it's not needed. > > return null; > > } > > > >} > > > >and in the XML: > > > ><class name="com.ingenta.ics.ecommerce.api.item.Price"> > > <map-to xml="price"/> > > <field name="id" type="com.ingenta.ics.item.Id" /> > > <field name="amount" type="big-decimal"/> > > <field name="currency" type="string" > > handler="com.ingenta.ics.api.rest.product.CurrencyFieldHandler"/> > ></class> > > > >Now, marshalling works beautifully. Unmarshalling gives me: > > > >1) > >testProduct(com.ingenta.ics.api.item.ProductMarshallingTest)java.lang.NullPointerException > > at > >org.exolab.castor.xml.util.XMLFieldDescriptorImpl.hashCode(XMLFieldDescriptorImpl.java:416) > > at java.util.HashMap.hash(HashMap.java:261) > > at java.util.HashMap.containsKey(HashMap.java:339) > > > >I am not sure what's going on -- was I supposed to implement hashCode? > >Castor's doc doesn't say so. Is this error familiar to anyone? > > > >Thanks in advance, > > > >Jessica > > > > > >------------------------------------------------- > >If you wish to unsubscribe from this list, please > >send an empty message to the following address: > > > >[EMAIL PROTECTED] > >------------------------------------------------- > > > > > > > ------------------------------------------------- > If you wish to unsubscribe from this list, please > send an empty message to the following address: > > [EMAIL PROTECTED] > ------------------------------------------------- > ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] -------------------------------------------------
