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https://issues.apache.org/jira/browse/ATLAS-1863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16138871#comment-16138871
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Pierre Padovani commented on ATLAS-1863:
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IMHO - A default value implies that the field is 'not null' *NOT* optional.
This implies that the field is required to have a value when the entity is
created, just that user input of the field is optional. Having a default value
set for an optional field just doesn't make that much sense to me, however
having it set for a field that is required makes a little more sense but still
doesn't quite work either.
> Set default value for primitive types attributes in entity based on
> attributeDef in Typedef
> -------------------------------------------------------------------------------------------
>
> Key: ATLAS-1863
> URL: https://issues.apache.org/jira/browse/ATLAS-1863
> Project: Atlas
> Issue Type: Improvement
> Components: atlas-intg
> Reporter: Nixon Rodrigues
> Assignee: Ruchi Solani
> Priority: Critical
> Fix For: 0.9-incubating
>
> Attachments: ATLAS-1863.2.patch, ATLAS-1863.3.patch, ATLAS-1863.patch
>
>
> While creating entity if attribute value are not set explicitly for primitive
> type which are optional, then default value should be set from attributedef.
> eg of typedef attributeDef
> {code}
> "attributeDefs": [ {
> "name": "sourceCode",
> "typeName": "string",
> "isOptional": true,
> "cardinality": "SINGLE",
> "valuesMinCount": 0,
> "valuesMaxCount": 1,
> "isUnique": false,
> "isIndexable": true,
> "defaultValue": "xyz"
> }
> {code}
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