RE: [TM4J-users] loading problem

[Richard W. <rw...@cs...>]

Hi Kal,

You're right in that it's merging. :)  I'm not sure why, though...

This is the entire TM:

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<topicMap xmlns="http://www.topicmaps.org/xtm/1.0/"
xmlns:xlink="http://www.w3.org/1999/xlink"
xml:base="http://ideabank.csir.co.za/test2.xml">

 <topic id="kim">
      <baseName>
        <baseNameString>Kim</baseNameString>
      </baseName>

	<instanceOf>
		<topicRef xlink:href="http://ideabank.csir.co.za/ib.defs.xml#person"/>
	</instanceOf>
  	<subjectIdentity>
		<subjectIndicatorRef xlink:href="http://ideabank.csir.co.za/data#role"/>
	</subjectIdentity>
 </topic>
</topicMap>

And I'm loading it by itself.  The subjectIdentityRef is a red herring
(sorry :), I only used that as an example.

But that still helps a lot so far, thanks :)
Rich

> -----Original Message-----
> From: tm4...@li...
> [mailto:tm4...@li...]On Behalf Of Kal Ahmed
> Sent: 19 June 2001 04:40
> To: tm4...@li...
> Subject: RE: [TM4J-users] loading problem
>
>
> Hi Rich,
>
> I think that it is possible that the topic is getting merged with
> some other
> topic. In your example, you have
>
>  <topic id="kim">
>       <baseName>
>         <baseNameString>Kim</baseNameString>
>       </baseName>
>
>  	<instanceOf>
>  		<topicRef
> xlink:href="http://ideabank.csir.co.za/ib.defs.xml#person"/>
>  	</instanceOf>
>    	<subjectIdentity>
>  		<subjectIndicatorRef
> xlink:href="http://ideabank.csir.co.za/data#role"/>
>  	</subjectIdentity>
>   </topic>
>
> This would get merged with any topic which has the same
> subjectIndicatorRef - I am just guessing from the URL of the
> subjectIndicatorRef, that it is not meant to be unique to Kim.
>
> The TopicMap.getTopics() returns all of the base topics - any
> merged topics
> are not included in the returned collection. Perhaps there should be a
> TopicMap.getAllTopics() function that includes the merged topics in there.
> As a test, when you iterate through the collection, also call
> Topic.getMergedTopics() and iterate through that - my hunch is that Kim is
> lurking in there somewhere :-)
>
> Cheers,
>
> Kal
>
> > -----Original Message-----
> > From: tm4...@li...
> > [mailto:tm4...@li...]On Behalf Of Richard
> > Watson
> > Sent: 19 June 2001 15:24
> > To: TM4J Users
> > Subject: [TM4J-users] loading problem
> >
> >
> > Hi all,
> >
> > Got an interesting one.  Java code that produces a strange result
> > as soon as
> > a subjectIdentity is added to a topic.
> >
> > Java code:
> >
> > (obviously uses some of my own stuff, but you'll get the idea)
> >
> >   // largely irrelevant but just so you know :)
> > PersistenceManager p = PersistenceManager.getPersistenceManager();
> > String strObject = "http://ideabank.csir.co.za/test2.xml#kim";
> > TopicMap tm = p.getTopicMapForURL(new URL(strObject));
> >
> >   // here's the interesting bit
> > Topic o = (Topic)tm.getObjectByResourceID(strObject);
> > System.out.println("object " + o);
> > System.out.println("contains object: " + tm.getTopics().contains(o));
> >
> > which produces output:
> > object com.techquila.topicmap.TopicImpl@d3147aed
> > contains object: false
> >
> > from this xml:
> >
> >  <topic id="kim">
> >       <baseName>
> >         <baseNameString>Kim</baseNameString>
> >       </baseName>
> >
> > 	<instanceOf>
> > 		<topicRef
> > xlink:href="http://ideabank.csir.co.za/ib.defs.xml#person"/>
> > 	</instanceOf>
> >   	<subjectIdentity>
> > 		<subjectIndicatorRef
> > xlink:href="http://ideabank.csir.co.za/data#role"/>
> > 	</subjectIdentity>
> >  </topic>
> >
> > and this output:
> >
> > object com.techquila.topicmap.TopicImpl@e79ef0b9
> > contains object: true
> >
> >  <topic id="kim">
> >       <baseName>
> >         <baseNameString>Kim</baseNameString>
> >       </baseName>
> >
> > 	<instanceOf>
> > 		<topicRef
> > xlink:href="http://ideabank.csir.co.za/ib.defs.xml#person"/>
> > 	</instanceOf>
> >  </topic>
> >
> > I've round-tripped it as best I could, and it spits out:
> >
> >     <topic>
> >         <instanceOf>
> >             <topicRef
> > xlink:href="http://ideabank.csir.co.za/ib.defs.xml#person"/>
> >         </instanceOf>
> >         <subjectIdentity>
> >             <subjectIndicatorRef
> > xlink:href="http://ideabank.csir.co.za/data#role"/>
> >         </subjectIdentity>
> >         <baseName>
> >             <baseNameString>Kim</baseNameString>
> >         </baseName>
> >     </topic>
> >
> > (observe the removed topic id)
> > This works fine for the first version (i.e. keeps the id).
> >
> > Also, while iterating through the topics, I find no resourceid
> for "kim".
> > But if I print out the o.resourceID above, I get the right one.
> >
> > So: iterating through the topics _does_ find a topic with the right
> > information but the wrong resourceID, and using
> tm.getObjectByResourceID()
> > finds a topic with the right resourceid.
> >
> > Cheers,
> > Rich the bug hunter :)
> >
> >
> > _______________________________________________
> > Tm4j-users mailing list
> > Tm4...@li...
> > http://lists.sourceforge.net/lists/listinfo/tm4j-users
> >
>
>
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