Hello Matt,

the JCas and CAS interfaces are abstractions so that programmers do not have to work with technical artifacts such as addresses. If you really really really want to use them, you can have a look at org.apache.uima.cas.impl.LowLevelCAS (JCas.getCas().getLowLevelCAS()) - but I think there might be a better solution for whatever problem you try to address by looking up annotations via their IDs.

Mind that the official API-Docs do not include documentation for LowLevelCAS - it's marked as "for internal use only". There is documentation for it in the UIMA source code though.

Best,

-- Richard

Am 11.10.2011 um 22:33 schrieb Coarr, Matt:

> I have a couple questions…
> 
> First, is the getAddress() method on Annotation (derived from FeatureStructureImpl according to the javadocs) the same value as the "id" value in the xmi serialization?
> 
> Second, how can I lookup an annotation in the jcas based on the annotation's address value?  I've recently figured out how to use annotation index, iterators, and constraints (at least the basics) for filtering based on values defined on the annotation within the type system.
> 
> I haven't seen a way to search the jcas for an annotation with a specific address (e.g. Id).  Any pointers?
> 
> Thanks!
> Matt

-- 
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Richard Eckart de Castilho
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Ubiquitous Knowledge Processing Lab 
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