This page collects differences between Version 2 of UIMA and Version 1.

API changes

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New Annotator Interfaces

UIMA 2.x has a new set of Annotator interfaces. Annotators should extend CasAnnotator_ImplBase or JcasAnnotator_ImplBase instead of the v1.x TextAnnotator_ImplBase and JTextAnnotator_ImplBase.

The v1.x annotator interfaces are unchanged and are still supported for backwards compatibility.

Differences between v2 and v1 annotator interfaces

The following summarizes what has changed between the v2 annotator interfaces (CasAnnotator_ImplBase, JcasAnnotator_ImplBase) and the v1 interfaces (TextAnnotator_ImplBase,JTextAnnotator_ImplBase).

Result Specification

The Result Specification was previously passed in on each process() call as the 2nd parameter. Now it is set when changed and it's up to the annotator to store it in a local field and make it available
when needed.

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