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Design Specification: Converter support

ER 374688

Document History

Date Author Version Description & Notes
19 March 2012 Gordon Yorke Initial Document created

Project overview

JPA 2.1 will add support for Converters. Currently converters are pieces of code that are responsible for converting from an attribute type and value to the corresponding database type and value.



Implement Converter support as required by the specification.


  • Auto-apply converters must not be applied to disallowed mapping types (ie Id, Version etc)

Design Constraints

Design / Functionality




Config files


Work Required

  1. Metadata processing of Converter annotations
    approx 3 days
  2. Implement always apply converters
    approx 3 days
  3. Testing
    approx 3 days

Open Issues

This section lists the open issues that are still pending that must be decided prior to fully implementing this project's requirements.

Issue # Owner Description / Notes


This section lists decisions made. These are intended to document the resolution of open issues or constraints added to the project that are important.

Issue # Description / Notes Decision

Future Considerations

During the research for this project the following items were identified as out of scope but are captured here as potential future enhancements. If agreed upon during the review process these should be logged in the bug system.

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