[TM4J-users] loading problem

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

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 :)