We're trying to handle hl7 update messages, and these may contain hl7
null's (""). HAPI does not currently seem to handle them specially,
which leads to various problems, such as validation failures and
making it somewhat torturous to detect these nulls.I've been trying to figure out what the best approach for handling nulls would be, and came up with the following: add two methods to Type, 'boolean isNull()' and 'void setNull(boolean)'. The parsers would set the null-flag appropriately, and the encoders and verifier would simiarly check the flag; setting the flag on instances that are part of another composite type (as opposed to part of the segment directly) would have no effect. I've done a quick implmentation of this and it works reasonably well. But I wanted to gather feedback on the approach before submitting a patch. Is there a better alternative? What have others done? Have I missed something? TIA. Cheers, Ronald ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Hl7api-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/hl7api-devel
