openCMIS: Secondary object types

By using secondary object types, you can define set of new properties and you can dynamically add to/remove these new properties from cmis objects.

Can I apply multiple secondary types to a cmis object?

Yes

Can I create new secondary type?

Yes

Can I update secondary type?

Yes

Can I delete secondary type?

Yes

Is all repositories support secondary types?

Not necessarily, you can check whether a repository supports secondary types or not by using ‘getTypeChildren’ API.

Can an object have more than one secondary type associated with it?

Yes

As per the specification, base secondary type (cmis:secondary) may not have property definitions associated with them. Still repositories specify property definitions to the base secondary type, so that the properties can be inherited by the subtypes of the secondary type.

In the in memory repository ‘cmis:secondary’ type is defined like below.

{
 "id": "cmis:secondary",
 "localName": "cmis:secondary",
 "localNamespace": "http:\/\/apache.org",
 "displayName": "Secondary",
 "queryName": "cmis:secondary",
 "description": "Secondary",
 "baseId": "cmis:secondary",
 "creatable": false,
 "fileable": false,
 "queryable": true,
 "fulltextIndexed": false,
 "includedInSupertypeQuery": true,
 "controllablePolicy": false,
 "controllableACL": false,
 "typeMutability": {
  "create": true,
  "update": false,
  "delete": false
 }
}

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