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Those "result handlers" are an artifact of an original Identity Connector Framework over-engineering. The handlers are supposed to assist connectors by implementing "mechanism" that the connector or resource does not support - such as search result filtering, data normalization and so on. However, those handler are generic and they know nothing about the particulars of the resource that the connector connects to. Therefore in vast majority of cases those handlers just get into the way and they distort the data. Good connectors usually do not need those handlers at all. Unfortunately, these handler are enabled by default and there is no way for a connector to tell the framework to turn them off. The handlers needs to be explicitly disabled in the resource configuration.

Capabilities

ICF has no real concept of capabilities. Connector can demonstrate the capabilities indirectly. E.g. delete capability is demonstrated by implementing SPI class DeleteOp. However, this does not reflect runtime status. E.g. connector may be capable of delete operation, but the resource that the connector is connected to may not support that operation. There is no way how connector can indicate that.

Some capabilities may also have complex parameters. E.g. update operation may need to know a complete state of the account to be able to update it. There is no way to indicate that. There is also no way how to indicate supported scripting languages for script operations.

Some capabilities are determined from the schema, e.g. enable/disable capability. There is an open question whether this is the right way to do it. E.g. disable operation may have side-effects, e.g. destruction of user's password. There is not way to indicate that. Also the password capability can be detected from the schema. But there is no way how to indicate password policy.

Service Accounts

The service account is configured specifically for each connector using a connector-specific configuration. It is not in any way structured or annotated. Therefore it does not allow some of the features, e.g.:

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