[CAUSEWAY-282] Add support for file uploads and downloads to Wicket viewer and JDO objectstore

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.2.0-incubating
• Fix Version/s: viewer-wicket-1.1.0, core-1.1.0
• Component/s: Core, Viewer Wicket
• Assignee: Unassigned
• Reporter: Daniel Keir Haywood
• Created: 15/Nov/12 08:23
• Updated: 10/Dec/13 08:36
• Resolved: 16/Jan/13 06:21

Description

• Introduce new Blob and Clob value types into the applib, wrapping a byte[] or char[] along with a MimeType.
• enhance core metamodel/progmodel, adding facets
• teach JDO objectstore how to persist these types
• add new components in wicket viewer to allow a file to be uploaded / persisted (eg a property of type Blob/Clob)
• add new facility in wicket viewer to download blob/clobs (eg an action returning a Blob/Clob)

Issue Links

• duplicates: CAUSEWAY-115 Provide support for documents/images/byte stream as a value type
• duplicates: CAUSEWAY-254 Add support for blob type.
• relates to: CAUSEWAY-631 Require documentation for the file upload feature (in Wicket viewer)