[OASIS Issue Tracker] (ODATA-842) Represent primitive types as JSON Schema formats

Ralf Handl created ODATA-842:
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             Summary: Represent primitive types as JSON Schema formats
                 Key: ODATA-842
                 URL: https://issues.oasis-open.org/browse/ODATA-842
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Bug
          Components: OData JSON CSDL
    Affects Versions: V4.0_WD01
            Reporter: Ralf Handl
             Fix For: V4.0_WD01


Many OData primitive types are JSON Schema primitive types combined with a set of restrictions, e.g. Edm.Int64 is
- "type":"integer",
- "minimum":-9223372036854775808,
- "maximum":9223372036854775807
or Edm.Guid is
- "type":"string",
- "pattern":"^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$"

There are basically three options:
- place these in definitions in edm.json and reference them there
- inline these definitions at each occurrence of the OData primitive type
- just combine the JSON Schema primitive type with an OData-specific format, e.g.
- type: string
- format: guid
or
- type: integer
- format: int64

The third approach is the most readable and in sync with what Swagger does, see http://swagger.io/specification, section Data Types



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