Class ParallelStep


  • public class ParallelStep
    extends Step
    Indicates that a CAS should be routed to a multiple AnalysisEngines and that the relative order in which these execute does not matter. Logically, they can run in parallel. The runtime is not obligated to actually execute them in parallel, however.

    After all the specified Analysis Engines have completed their processing, the Flow.next() method will be called again to determine the next destination for the CAS.

    • Constructor Detail

      • ParallelStep

        public ParallelStep​(Collection<String> aAnalysisEngineKeys)
        Creates a new ParallelStep
        Parameters:
        aAnalysisEngineKeys - A Collection of Strings, where each String is the key of an Analysis Engine to which the CAS should be routed. Each String must bee one of the keys in the FlowController's FlowControllerContext.getAnalysisEngineMetaDataMap().
    • Method Detail

      • getAnalysisEngineKeys

        public Collection<String> getAnalysisEngineKeys()
        Gets the keys of the Analysis Engines to which the CAS should be routed.
        Returns:
        an unmodifiable Collection of Strings, where each String is the key of an Analysis Engine to which the CAS should be routed.
      • setAnalysisEngineKeys

        public void setAnalysisEngineKeys​(Collection<String> aKeys)
        Sets the keys of the Analysis Engines to which the CAS should be routed. By using this method, a user's Flow implementation can (but is not required to) reuse the same ParallelStep object multiple times.
        Parameters:
        aKeys - A Collection of Strings, where each String is the key of an Analysis Engine to which the CAS should be routed. Each String must bee one of the keys in the FlowController's FlowControllerContext.getAnalysisEngineMetaDataMap().