M Carissimi created OLINGO-121:
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Summary: Support metadata:type attribute in Entity Properties
Key: OLINGO-121
URL: https://issues.apache.org/jira/browse/OLINGO-121
Project: Olingo
Issue Type: Improvement
Affects Versions: V2 1.1.0
Reporter: M Carissimi
Certain OData consumers (i.e. PowerPivot for Microsfot Excel) require that the
metadata:type attribute is set for all Property values in an Entry, for example:
{code}
<entry xmlns="http://www.w3.org/2005/Atom";
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata";
xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices";
xml:base="https://dev.energysys.com/odatapas/resourcenolinks.svc/";>
...
<content type="application/xml">
<m:properties>
<d:FROM_DATE
m:type="Edm.DateTime">2013-07-01T00:00:00</d:FROM_DATE>
<d:TO_DATE m:type="Edm.DateTime" m:null="true"/>
<d:IS_ACTIVE m:type="Edm.Boolean">true</d:IS_ACTIVE>
<d:ORGANISATION>EnergySys Support</d:ORGANISATION>
<d:ORDER_NUMBER m:type="Edm.Int32">2</d:ORDER_NUMBER>
</m:properties>
</content>
</entry>
{code}
The Olingo library does not specify the metadata:type attribute for properties
and this means that software relying on that property can't correctly consume
data generated with Olingo.
This library should support a way to set the metadata:type attribute for
properties. This could be done by allowing the producer to explicitly set the
type for each property (as done in odata4j) or it could be automatically added
by using the type definition in the EntityType associated with the data.
This enhancement has been raised following discussion with Michael Boltz (see
OLINGO-118 for details)
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