JPH05313970A - Electronic bulletin board device - Google Patents

Abstract

PURPOSE:To shorten the exclusive control time for the data base control and the file control of the bulletin board control in regard of an electronic bulletin board device using a data base. CONSTITUTION:The exclusive control time covers the exclusive control start 11 through the exclusive control end 14 or the return 17 of a data base to the unprocessed state. The message to be deleted is renamed 13 in a temporary file so that the temperary file deletion 15 is excluded out of the exclusive control. In such a way, a part of all of the file control is excluded out of the exclusive control and therefore the exclusive control time is shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic bulletin board device via a database.

[0002]

2. Description of the Related Art FIG. 5 is a conventional bulletin board management chart. The bulletin board management 51 includes database management 52 and file management 5
There are three. The database management 52 manages information about each bulletin board and management information about written messages. The file management 53 manages message files.

The conventional exclusive control of bulletin board management will be described below. FIG. 6 shows the exclusive control of the conventional message writing process. In FIG. 6, exclusive control is started by exclusive control start 61. The file save 62 saves the written message. The database update 63 performs a database update process. The exclusive control end 64 ends the exclusive control. File deletion 65 is file saving 62 when the database update 63 fails.
This is a process of deleting the message saved by. 6
The process of 6 is a function of the database and is a function of canceling the modification of the database after the start of the exclusive control and returning to the state before the modification.

In the configuration shown in FIG. 6, the exclusive control time, which is the time during which the access cannot be accessed by others by the exclusive control, is from the exclusive control start 61 to the exclusive control end 64, or until the processing of returning the database to the state before processing 66 is completed. Become.

FIG. 7 shows exclusive control of a conventional message deletion process. In FIG. 7, file deletion 7
3 deletes the specified message file.

In the configuration shown in FIG. 7, the exclusive control time is from the exclusive control start 71 to the exclusive control end 74, or until the processing of returning the database to the state before processing 75 is completed.

[0007]

In the conventional configuration, since the file management is included in the exclusive control, there is a problem that the exclusive control time becomes long.

The present invention solves the above-mentioned conventional problems, and an object thereof is to shorten the exclusive control time.

[0009]

In order to solve this object, the present invention provides a database management unit for managing information about a bulletin board, a file management unit for managing files to be displayed on the bulletin board, the database and the file. And a bulletin board management unit for managing the management unit, and changes the name of the file to be deleted registered in the database management unit to a name different from the name registered in the database before deletion, and accesses the database. Is released, the file management unit deletes the file.

[0010]

With the above configuration, the exclusive control time required for file management in the bulletin board management can be shortened, and the waiting time of the bulletin board user can be shortened.

[0011]

【Example】

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment when deleting a message.
Rename file to be deleted to temporary file 13 does not immediately delete the message file, but renames it to a temporary file. The temporary file deletion 15 deletes the temporary file when the exclusive control ends normally. Returning the temporary file to the original file 16 returns the temporary file to the original message file when the exclusive control is not normally completed. The exclusive control time is from the exclusive control start 11 to the exclusive control end 14 or from 17 to return the database to the state before processing.

As described above, according to this embodiment, the temporary file deletion 15 can be removed from the exclusive control by renaming the message to be deleted to the temporary file. Further, since the processing time is shorter when the file is renamed than when the file is deleted, the exclusive control time becomes shorter. Since the file deletion 15 is not included in the exclusive control, it is shown in the bulletin board management chart as shown in FIG. That is, the message to be deleted, which is a process corresponding to the file management 23, is renamed to a temporary file 13, the temporary file is deleted 15,
The exclusion control time is shortened because only a part of the 16 files that return the temporary file to the original file is in the exclusion control.

(Second Embodiment) A second embodiment of the present invention will be described below. FIG. 3 shows an embodiment when deleting a large number of messages. There is an explorer as a process for deleting a large number of messages. The expirer is a function that compares the message retention period set for each bulletin board with the message writing date for each message and deletes the message if the retention period has passed. Update 32 of the database determines the messages to be targeted by the exploiter,
Delete the relevant management information from the database. The file delete 34 deletes the message file to be deleted.

When deleting a large number of messages, it takes time as compared with the first embodiment. As described above, according to the present embodiment, by deleting the management information of the message in the update 32 of the database, the message file at that point is deleted. Is no longer accessible. Further, the exclusive control diagram of the explorer in FIG. 3 is shown in the bulletin board management diagram as shown in FIG. 4, and the exclusive control time is shortened because the file management 43 is excluded from the exclusive control.

[0015]

As described above, according to the present invention, when writing a message, deleting a message, or deleting a large number of messages, a part or all of the file management is removed from the exclusive control to shorten the exclusive control time. Therefore, the waiting time of the bulletin board users can be shortened.

[Brief description of drawings]

FIG. 1 is an exclusive control diagram when deleting a message according to a first embodiment of this invention.

FIG. 2 is a bulletin board management diagram when deleting a message according to the first embodiment of this invention.

FIG. 3 is an exclusive control diagram of an explorer according to the second embodiment of the present invention.

FIG. 4 is a bulletin board management diagram of an explorer according to the second embodiment of the present invention.

[Fig. 5] Conventional board management diagram

FIG. 6 is a conventional exclusive control diagram when writing a message.

FIG. 7: Exclusive control diagram when deleting a message

[Explanation of symbols]

 21 bulletin board management 22 database management 23 file management 24 exclusive control unit

Claims (1)

[Claims] 1. A database management unit that manages information about a bulletin board, a file management unit that manages files to be displayed on the bulletin board, a bulletin board management unit that manages the database and the file management unit, and the database. The file management unit deletes the file after changing the name of the file to be deleted registered in the management unit to a name different from the name registered in the database before deletion and opening the access to the database. An electronic bulletin board device characterized by the above.