Yes it is an OData Model and the query to get the fields/properties for filtering.is as below
Hostname:/sap/opu/odata/sap/Y_EMPCollection(Empid='1'Eempname='dave',Emptype='type-3')
Result for Odata Query:
<content type="application/xml">
<m:properties xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices">
<d:StudentID>178</d:StudentID>
<d:StudentName>James</d:StudentName>
</content>
i want to filter on the returned property StudentName with above odata request