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|Oracle Fusion Middleware Glossary for Oracle Unified Directory 11g Release 1 (11.1.1)|
The request OID for the “Who Am I?” extended operation is 220.127.116.11.4.1.418.104.22.168, and there should not be a request value. The response should not include a response OID, and the value should be a string containing the client's authorization identity (or it may be an empty string if the authorization identity is that of the anonymous user).
The information provided by the “Who Am I?” extended operation is similar to that provided by the authorization identity control except that it can be used at any time after the client has authenticated, whereas the authorization identity control can only be included with a bind request.
The Directory Server work queue is the mechanism that it uses to keep track of outstanding requests and ensuring that they are processed in an appropriate manner. The work queue functionality is provided by an extensible API, but the default implementation is relatively simple: a queue is serviced by a number of worker thread. As long as there are free worker threads, then the queue will generally remain empty. If all worker threads are busy, then subsequent requests will be placed in the work queue so that they are processed in a FIFO manner.
A worker thread is a thread used to process requests in the Directory Server. Worker threads are associated with the work queue, and they will operate in a loop that includes picking up a request from the queue (waiting for a request to arrive if necessary), processing that request appropriate, and then returning to the queue for the next request.
A workflow defines the processing for a given naming context. The overall processing is split into a set of ordered and synchronized tasks, defined by workflow elements.
A workflow element is the key building block of a workflow processing. It defines how the client request sent to the server will be treated. The workflow elements implement the main tasks in the Oracle Unified Directory proxy, including for example, load balancing and distribution.
The writability mode of the Directory Server is used to control whether write operations are allowed. The writability mode configuration can be restricted to a single back end or it can apply to the entire server.
The following writability modes are available:
The server attempts to process all write operations
The server rejects all write operations
The server attempts to process write operations initiated as internal operations or through synchronization but rejects any request coming from an external client
An entryDN is an operational attribute that provides a copy of the entry's current DN. Because a DN is not an attribute of the entry, it cannot be used to perform attribute value assertions. The entryDN provides a mechanism to access an entry's DN and is described in RFC 5020.