Amine Nebri created OLINGO-1415:
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Summary: Question regarding Edm and deserialization
Key: OLINGO-1415
URL: https://issues.apache.org/jira/browse/OLINGO-1415
Project: Olingo
Issue Type: Question
Components: odata4-client
Affects Versions: (Java) V4 4.7.0
Reporter: Amine Nebri
I have just started using olingo to connect to SAP cloud (aka By Design). All
we do is query data from SAP.
I'm able to retrieve data through the APIs
I have a questionRetrieving the data model takes way too long. It ends up
retrieving a 5MB XML. It seems this needs to happen every time there is a need
to retrieve data.
I'm thinking there has to be a better way to do this but I'm not sure. All of
the queries we have about one single entity
# Is there a way to only retrieve edm for one entity?
# Is there a way to retrieve edm only once, store it somewhere and initialize
edm from the XML. The idea here is we only need to retrieve edm when anything
changes on the SAP side?
My next question has to to with deserialization once my client receives all the
data. Based on the sample I saw online (which I'm using) I have to manually
convert the data types. See below.
I was hoping the purpose of having edm is for olingo to be able to map the
types without any coking. am I missing something?
List<Map<String, Object>> result = []
feed.entries.each
{
entry ->
Map<String, Object> map = new HashMap<String, Object>()
entry.properties.entrySet().each
{
property ->
if (property.value instanceof Calendar)
{
map[property.key] =
SimpleDateFormat.instance.format(property.value.time)
return
}
map[property.key] = property.value
}
result.add(map)
}
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