[ATLAS-4410] Name relationship link between two different types in Apache Atlas

• Type: Test
• Status: Open
• Priority: Blocker
• Resolution: Unresolved
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: atlas-core
• Assignee: Unassigned
• Reporter: Saqib
• Created: 01/Sep/21 12:11
• Updated: 20/Sep/21 07:41

Description

I am trying to name relationship link (by using attributeDefs) between two different types. The relationship is now registered in Atlas and definition fetch results as below:

 

{{

{ "category": "RELATIONSHIP", "guid": "9b1059c3-8707-46db-ae3c-e8d1b4ef6333", "createdBy": "admin", "updatedBy": "admin", "createTime": 1625233869809, "updateTime": 1625496519772, "version": 6, "name": "field_assignment", "description": "someDescription.", "typeVersion": "1.0", "attributeDefs": [ \{ "name": "LinkInformation", "typeName": "string", "isOptional": true, "cardinality": "SINGLE", "valuesMinCount": 0, "valuesMaxCount": 1, "isUnique": false, "isIndexable": false, "includeInNotification": false, "searchWeight": -1 }

],
"relationshipCategory": "ASSOCIATION",
"propagateTags": "NONE",
"endDef1": {
"type": "custom_dataset",
"name": "fields",
"isContainer": false,
"cardinality": "SET",
"isLegacyAttribute": false
},
"endDef2": {
"type": "custom_field",
"name": "datasets",
"isContainer": false,
"cardinality": "SET",
"isLegacyAttribute": false
}}}

}

Now, I am trying to create a relationship between two types while defining an Entity for either type like

 

{{{
"entities": [
{
"typeName": "custom_field",
"createdBy": "admin",
"guid": -1000,
"attributes": {
"name": "type",
"datasets": [

{ "guid": "-200", "typeName": "custom_dataset" }

]
},
"classifications": [],

}
],
"referredEntities": {
"-200": {
"guid": "-200",
"typeName": "custome_dataset",
"relationshipAttributes" :

{"LinkInformation": "key"}

,

"attributes": {
"qualifiedName": "test"
}
}
}}}

}

Through, while executing this, I don't see any error and entities are created but LinkInformation is null by simply doing a search by GUID for entities.

 

{{...
"relationshipAttributes": {
"typeName": "field_assignment",
"attributes":

{ "LinkInformation": null }

}
...}}

I am not able to find a good documentation anywhere for this. Can anyone help?