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  1. OASIS Open Data Protocol (OData) TC
  2. ODATA-24

Simplify how Relationships are expressed in CSDL

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: V4.0_WD01
    • Fix Version/s: V4.0_WD01
    • Component/s: CSDL XML
    • Labels:
      None
    • Environment:

      [Proposed]

      Description

      Relationships are expressed in CSDL as binary associations with association sets; navigation properties reference these associations and describe target and source "ends" of these associations.

      The requirement of defining binary associations for each relationship makes the CSDL more verbose, harder to read, and moves the information that is interesting about the navigation property out of line.

      A simpler way to express navigation properties is summarized in the following presentation, presented at the first OData TC Meeting in July:
      https://www.oasis-open.org/apps/org/workgroup/odata/download.php/46576/Association%20Simplification.pptx.

      A complete proposal would be the application of these concepts to [OData-CSDL].

        Attachments

          Activity

          mikep Michael Pizzo (Inactive) created issue -
          mikep Michael Pizzo (Inactive) made changes -
          Field Original Value New Value
          Priority Minor [ 4 ] Major [ 3 ]
          ralfhandl Ralf Handl made changes -
          Fix Version/s WD01 [ 10247 ]
          ralfhandl Ralf Handl made changes -
          Proposal See description.

          Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47432/latest/odata-meeting-15_on-20121108_9-F2F-minutes.html
          Environment [Proposed]
          Status New [ 10000 ] Open [ 1 ]
          ralfhandl Ralf Handl made changes -
          Assignee Michael Pizzo [ mikep ] Ralf Handl [ ralfhandl ]
          Resolution Fixed [ 1 ]
          Status Open [ 1 ] Resolved [ 5 ]
          ralfhandl Ralf Handl made changes -
          Resolution https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47506/odata-core-v1.0-wd01-part3-csdl-2012-11-16-RH.doc
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=103
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=103

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=104
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=105
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1a.xml?rev=105
          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47506/odata-core-v1.0-wd01-part3-csdl-2012-11-16-RH.doc
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=103
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=103

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=104
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=105
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1a.xml?rev=105

          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47524/odata-core-v1.0-wd01-part2-url-conventions-2012-11-21.doc

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-construction-rules-v1.0-wd01.txt?rev=106
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-testcases.xml?rev=106
          ralfhandl Ralf Handl made changes -
          Resolution https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47506/odata-core-v1.0-wd01-part3-csdl-2012-11-16-RH.doc
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=103
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=103

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=104
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=105
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1a.xml?rev=105

          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47524/odata-core-v1.0-wd01-part2-url-conventions-2012-11-21.doc

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-construction-rules-v1.0-wd01.txt?rev=106
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-testcases.xml?rev=106
          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47506/odata-core-v1.0-wd01-part3-csdl-2012-11-16-RH.doc
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=103
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=103

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=104
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=105
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1a.xml?rev=105

          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47524/odata-core-v1.0-wd01-part2-url-conventions-2012-11-21.doc

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-construction-rules-v1.0-wd01.txt?rev=106
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-testcases.xml?rev=106

          Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47595/latest/odata-meeting-16_on-20121129-minutes.html
          Status Applied [ 10002 ] Closed [ 6 ]
          mikep Michael Pizzo (Inactive) made changes -
          Status Closed [ 6 ] Open [ 1 ]
          mikep Michael Pizzo (Inactive) made changes -
          Status Open [ 1 ] Resolved [ 5 ]
          mikep Michael Pizzo (Inactive) made changes -
          Resolution https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47506/odata-core-v1.0-wd01-part3-csdl-2012-11-16-RH.doc
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=103
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=103

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=104
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=105
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1a.xml?rev=105

          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47524/odata-core-v1.0-wd01-part2-url-conventions-2012-11-21.doc

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-construction-rules-v1.0-wd01.txt?rev=106
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-testcases.xml?rev=106

          Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47595/latest/odata-meeting-16_on-20121129-minutes.html
          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47506/odata-core-v1.0-wd01-part3-csdl-2012-11-16-RH.doc
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=103
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=103
          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/48216/odata-core-v1.0-wd01-part1-protocol-2013-2-11-MP.docx

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=104
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=105
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1a.xml?rev=105

          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47524/odata-core-v1.0-wd01-part2-url-conventions-2012-11-21.doc

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-construction-rules-v1.0-wd01.txt?rev=106
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-testcases.xml?rev=106

          Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47595/latest/odata-meeting-16_on-20121129-minutes.html
          Status Resolved [ 5 ] Applied [ 10002 ]
          ralfhandl Ralf Handl made changes -
          Resolution https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47506/odata-core-v1.0-wd01-part3-csdl-2012-11-16-RH.doc
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=103
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=103
          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/48216/odata-core-v1.0-wd01-part1-protocol-2013-2-11-MP.docx

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=104
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=105
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1a.xml?rev=105

          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47524/odata-core-v1.0-wd01-part2-url-conventions-2012-11-21.doc

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-construction-rules-v1.0-wd01.txt?rev=106
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-testcases.xml?rev=106

          Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47595/latest/odata-meeting-16_on-20121129-minutes.html
          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47506/odata-core-v1.0-wd01-part3-csdl-2012-11-16-RH.doc
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=103
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=103

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=104
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1.xml?rev=105
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/examples/csdl-18.1a.xml?rev=105

          https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47524/odata-core-v1.0-wd01-part2-url-conventions-2012-11-21.doc

          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-construction-rules-v1.0-wd01.txt?rev=106
          https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/ABNF/odata-abnf-testcases.xml?rev=106

          Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47595/latest/odata-meeting-16_on-20121129-minutes.html

          https://www.oasis-open.org/committees/download.php/48216/odata-core-v1.0-wd01-part1-protocol-2013-2-11-MP.docx

          Accepted: https://www.oasis-open.org/committees/download.php/48269/odata-meeting-25_on-20130214-minutes.html#odata-24
          Status Applied [ 10002 ] Closed [ 6 ]
          handl Ralf Handl made changes -
          Assignee Ralf Handl [ ralfhandl ] Ralf Handl [ handl ]

            People

            • Assignee:
              handl Ralf Handl
              Reporter:
              mikep Michael Pizzo (Inactive)
            • Watchers:
              0 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: