Data management at a directory database

A directory database device, comprising:

• a memory circuit having a data entry in a directory;
• a receiver configured to receive a request for modifying the data entry from a client device;
• a processor circuit operatively connected to the memory circuit and the receiver;
• and
• wherein the directory database device is configured to:
• associate the data entry with first status information representing a first current storage status of the data entry at the directory database device, the first status information being data storing a value representing a current content of the data entry;
• receive, from the client device and in association with the request, second status information representing a second current storage status of the data entry at the directory database device, the second current storage status indicating a latest available current storage status of the data entry as available to the client device;
• and
• modify the data entry according to the request if the first status information and the second status information are determined to match regarding the first current storage status of the data entry at the directory database device and the second current storage status as received from the client device;
• obtain third status information representing a modified current storage status of the modified data entry at the directory database device;
• and
• associate the modified data entry with the third status information.

A computer program product stored in a non-transitory computer readable medium for data management at a directory database device comprising a data entry in a directory, the computer program product comprising software instructions which, when executed by a processor circuit of the directory database device, causes the directory database device to:

• associate the data entry with first status information representing a first current storage status of the data entry at the directory database device, the first status information being data storing a value representing a current content of the data entry;
• receive a request for modifying the data entry from a client device;
• receive, from the client device and in association with the request, second status information representing a second current storage status of the data entry at the directory database device, the second current storage status indicating a latest available current storage status of the data entry as available to the client device;
• and
• modify the data entry according to the request if the first status information and the second status information are determined to match regarding the first current storage status of the data entry at the directory database device and the second current storage status as received from the client device;
• obtain third status information representing a modified current storage status of the modified data entry at the directory database device;
• and
• associate the modified data entry with the third status information.

A method for data management at a directory database device comprising a processor circuit and a data entry in a directory, the method comprising:

• receiving first status information representing a first current storage status of the data entry at the directory database device, the first status information being data storing a value representing a current content of the data entry;
• associating second status information representing a second current storage status of the data entry at the directory database device with a request for modifying the data entry based on the first status information, the second current storage status indicating a latest available current storage status of the data entry as available to a client device;
• and
• sending the request for modifying the data entry in association with the second status information;
• receiving third status information from the directory database device, wherein the third status information represents a modified current storage status of the modified data entry obtained at the directory database device, and is associated with the modified data entry at the database directory device.

A client device in communication with a directory database device comprising a data entry in a directory, the client device comprising:

• a receiver;
• a transmitter;
• a memory circuit;
• and
• a processor circuit operatively connected to the receiver, the transmission unit, and the storage unit;
• and
• wherein the client device is configured to:
• receive first status information representing a first current storage status of the data entry at the directory database device, the first status information being data storing a value representing a current content of the data entry;
• associate second status information representing a second current storage status of the data entry at the directory database device with a request for modifying the data entry based on the first status information, the second current storage status indicating a latest available current storage status of the data entry as available to the client device;
• send the request for modifying the data entry in association with the second status information to the directory database device;
• receive third status information from the database device, wherein the third status information represents a modified current storage status of the modified data entry obtained at the directory database device, and is associated with the modified data entry at the database directory device.

A communication system comprising:

• a directory database device;
• a client device;
• and
• wherein the directory database device comprises:
• a first memory circuit having a data entry in a directory;
• a first receiver configured to receive a request for modifying the data entry from the client device;
• a first processor circuit operatively connected to the first memory circuit and the first receiver;
• and
• wherein the directory database device is configured to:
• associate the data entry with first status information representing a first current storage status of the data entry at the directory database device, the first status information being data storing a value representing a current content of the data entry;
• receive, from the client device and in association with the request, second status information representing a second current storage status of the data entry at the directory database device, the second current storage status indicating a latest available current storage status of the data entry as available to the client device;
• modify the data entry according to the request if the first status information and the second status information are determined to match regarding the first current storage status of the data entry at the directory database device and the second current storage status as received from the client device;
• obtain third status information representing a modified current storage status of the modified data entry at the directory database device;
• and
• associate the modified data entry with the third status information;
• and
• wherein the client device comprises:
• a second receiver;
• a second transmitter;
• a second memory circuit;
• a second processor circuit operatively connected to the second receiver, the second transmitter, and the second memory circuit of the client device;
• and
• wherein the client device is configured to:
• receive the first status information;
• associate the second status information with the request for modifying the data entry based on the first status information;
• and
• send the request for modifying the data entry in association with the second status information to the directory database device.