PDQ_HL7V3_Direct

The PDQ_HL7V3_Direct project handles HL7 v3 messages for patient demographics queries. It contains a main BPEL process, bpelPDQManager, and one subprocess, bpelExecuteCoreQuery. The main BPEL process calls the subprocess, which in turn call the Domain Lookup service to resolve domain names, checks whether the configured query uses wildcard characters, and then calls the Master Index Facade EJB to retrieve any matching patient records. It then resolves domain names again and sends the response back out to the main BPEL process.

The main BPEL process also processes query continuation messages and query cancel messages (QUQI_IN000003UV01). A query continuation message is sent by the consumer of the query results when multiple patient records are found as the result of a query and they are returned to the consumer in batches. When the consumer has processed on batch, it sends a message requesting to either continue to the next batch or cancel the query results. The main BPEL process uses On Event activities to determine whether to proceed with the next batch of results or to cancel the process.

The main BPEL process also defines fault handling, generates the ACK/NACK responses, and generates the ATNA audit repository messages. The subprocess in this project maps directly to the master index object structure. If you modify the master index object structure, the mapping in the bpelExecuteCoreQuery process might also need to be updated.

This project includes the corresponding WSDL documents for the main process and subprocess, and references the XML schema files to support HL7 v3 processing.