Re: [TM4J-users] tolog

[Lars H. <he...@se...>]

Hi,

[...]
>>   I want to use tolog in TMAPI to do some query about my topic map.How can I
>> do it? And is there any reference manual?

> The current TM4J tolog implementation uses the TM4J native model (but
> you can use the tolog implementation with topic maps created with
> TMAPI).
> http://tm4j.org/docs/devguide/ch08.html#N11776

Note, that you've to "unwrap" the TMAPI topic map instance. Your code
has to look like this:

    import org.tm4j.tmapi.helpers.Wrapper;
    // [...]

    // tmSystem points to your TopicMapSystem instance
    
    TopicMap tm = tmSystem.getTopicMap("http://example.org/");
    
    QueryEvaluator qe =
        QueryEvaluatorFactory.newQueryEvaluator(Wrapper.unwrap(tm));


The Wrapper.unwrap call is important because the QueryEval.Fac.
expects an instance of "org.tm4j.topicmap.TopicMap" (the native TM4j
model).

Best regards,
Lars
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