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https://issues.apache.org/jira/browse/OLINGO-1087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15892102#comment-15892102
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Ralf Handl commented on OLINGO-1087:
------------------------------------
OData V2 is officially specified in
* https://msdn.microsoft.com/en-us/library/dd541188.aspx
* https://msdn.microsoft.com/en-us/library/dd541474.aspx
* https://msdn.microsoft.com/en-us/library/dd541284.aspx
These three documents cover OData V2 and V3.
Admittedly these documents don't make it easy to find out what applies to V2
and what applies only to V3.
On the upside: these documents are revised regularly, last on July 14, 2016.
> Precision in EdmDecimal not calculated correctly
> ------------------------------------------------
>
> Key: OLINGO-1087
> URL: https://issues.apache.org/jira/browse/OLINGO-1087
> Project: Olingo
> Issue Type: Bug
> Components: odata2-core
> Affects Versions: V2 2.0.8
> Reporter: Svante von Erichsen
> Attachments: 0001-OLINGO-1087-Fix-calculation-of-precision.patch
>
>
> The "precision" found in a read number is currently at least the number of
> decimals (omitting trailing zeroes). That seems to be wrong, or at least not
> consistent with at least some server side view of the matter, for numbers
> smaller than 0.1 (the number shown has 35 decimals, but precision 34):
> org.apache.olingo.odata2.api.edm.EdmSimpleTypeException: The metadata
> constraints '[Precision=34]' do not match the literal
> '0.08102359900000000170194880411145277'.
> at
> org.apache.olingo.odata2.core.edm.EdmDecimal.internalValueOfString(EdmDecimal.java:107)
> at
> org.apache.olingo.odata2.core.edm.AbstractSimpleType.valueOfString(AbstractSimpleType.java:91)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonPropertyConsumer.readSimpleProperty(JsonPropertyConsumer.java:236)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonPropertyConsumer.readPropertyValue(JsonPropertyConsumer.java:169)
> ... 69 common frames omitted
> Wrapped by: org.apache.olingo.odata2.api.ep.EntityProviderException: An
> exception of type 'EdmSimpleTypeException' occurred.
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonPropertyConsumer.readPropertyValue(JsonPropertyConsumer.java:171)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonEntryConsumer.handleName(JsonEntryConsumer.java:172)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonEntryConsumer.readEntryContent(JsonEntryConsumer.java:130)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonEntryConsumer.readFeedEntry(JsonEntryConsumer.java:117)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonFeedConsumer.readArrayContent(JsonFeedConsumer.java:153)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonFeedConsumer.handleName(JsonFeedConsumer.java:122)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonFeedConsumer.readFeedContent(JsonFeedConsumer.java:111)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonFeedConsumer.readFeed(JsonFeedConsumer.java:96)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonFeedConsumer.readFeedStandalone(JsonFeedConsumer.java:63)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonEntityConsumer.readDeltaFeed(JsonEntityConsumer.java:95)
> at
> org.apache.olingo.odata2.core.ep.consumer.JsonEntityConsumer.readFeed(JsonEntityConsumer.java:81)
> at
> org.apache.olingo.odata2.core.ep.JsonEntityProvider.readFeed(JsonEntityProvider.java:309)
> at
> org.apache.olingo.odata2.core.ep.ProviderFacadeImpl.readFeed(ProviderFacadeImpl.java:165)
> at
> org.apache.olingo.odata2.api.ep.EntityProvider.readFeed(EntityProvider.java:676)
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