JPS63220322A - Key conversion storing file system - Google Patents

Abstract

PURPOSE:To enable a user to utilize a furthermore free system without restricting a file accessing system by file system restricting conditions by independently designing a logic key determined by the user and a real key determined by a system designer. CONSTITUTION:At the time of accessing a file 1, the user inputs the logic key 3, the item constitution of the inputted logic key 3 is converted by a real/logic key converting means 5 and the file 1 is accessed by the real key 4. The means 5 refers a record B by the real key 4, judges whether a record exists in the file or not, when the record exists, refers data A by a key existing in a record D or corrects the data A. When there is no record, the real key 4 is expelled, both the records B, C are updated and then data A are stored.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a system in which a user accesses a file using a key consisting of a desired item, and in particular, the present invention relates to a system in which a user accesses a file by using a key consisting of a desired item, and in particular, by such access, necessary data can be stored and edited. related to the system.

(Prior art) Conventionally, file systems are unspecified in a sequential number space, and in order to continuously store a large amount of data from a large number of starting numbers, it is necessary to randomize the nine input keys using random numbers. The storage location within the file was determined and stored.

In such a method, there is a possibility that data is concentrated in a certain storage location, reducing data retrieval efficiency.

(Problems to be Solved by the Invention) The conventional key conversion storage file method described above is used in a wide range of fields, and the requests of users vary. Since it is stored as an access key, it has the disadvantage that it often conflicts with file system constraints.

Furthermore, the system designer adjusts the key characteristics determined by the user, such as the issuing of keys and the number of increases/decreases.
We design the data storage method and the number of additional items, but depending on the key characteristics, the data storage efficiency may be low and access efficiency may decline, and the scope of use by users may have to be reduced depending on the constraints. There is a drawback.

In addition, if a user requests a key change during system development, the system designer must investigate the key characteristics again and develop a compatible system from the beginning, which significantly lengthens the system development period. There is a drawback.

The purpose of the present invention is to determine whether a file is determined by the user? The system designer converts the logical key used for access into a real key that is stored directly on the file after considering the file system constraints, key distribution method, and data storage efficiency in advance. Does the user have a real key? When outputting the contents of a file without making the user aware of it, it is converted into logical key information again, edited and outputted, and it is also determined whether data is stored on the file, and the logical key and actual information are output. When mapping and storing data in a new file after performing mapping to check for inconsistency with the key, the above-mentioned disadvantages can be solved by automatically issuing the real key to be stored through real/logical key conversion. :
Is there a key conversion storage file method that eliminates the design of the logical key and real key and makes the design of the real key independent and realizes the interface? I am determined to provide it.

(Means for resolving intervening vertices) The key conversion storage file system according to the present invention is unspecified in a sequential number space, and stores a large amount of data consecutively from a large number of starting numbers, allowing for efficient searching. This device is for accessing files for the purpose of processing data, and is configured to include a real/logical key conversion means, a mapping management means, and a real key issuing means.

The real/logical key conversion means converts the logic Fl inputted by the user.
Is it possible to store q− directly in a file? -, or
Alternatively, it is for converting the stored real key into a logical key and editing and outputting it.

The mapping management means is for checking a mismatch between a logical key and a real key when data is already stored in a file.

The real child issuing means is for automatically issuing a real key to be stored when new data is stored on a file.

(Example) Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a key conversion storage file system according to the present invention. In FIG. 1, 1 is a file, 2 is a storage information area, 3 is a logical key, 4 is a real key, 5 is a real/logical key conversion means, 11 is a mapping management means, 12 is a real key issuing means, and 13 is data. It is a storage area.

The user uses logical key 3 when accessing file 1? However, the item configuration of the input logical key 3 is not actual.
The logical key is changed by the logical key conversion means 5, and the file is accessed by the real 'P-4.

The contents of file 1 are composed of data A, mapping management record B, real key issuing record C1, and mapping record D, as shown in FIG.

First, the real/logical key conversion means 5 refers to the record B using the real key 4 and uses the real key 4 to
1 or not, and if it exists, refer to data A using the key existing in record D or modify it. If the record does not exist, the actual key 4 is issued for record C, records B and C are updated, and then data A is stored.

When the user refers to the information of data A in the file, the real key 4 is converted into the logical key 3 input by the user, and the information is displayed in the stored information area 2 in an edited form.

The file 1 is composed of a mapping management means 11, a real key issuing means 12, and a data storage area 13.

The mapping management means 11 checks for mismatch between the logic 3 and the real key 4 when data is stored on the file 1. The seedling dispensing means 12 automatically dispenses the actual key 4 to be stored at the end of storing data on the file 1.

(Effects of the Invention) As explained above, the present invention allows the user to control the file access method by independently designing the logical key determined by the user and the real key determined by the system designer. On the other hand, it is possible to use a more flexible method without being bound by file system constraints.

In addition, system designers can design their own access methods based on real keys, data storage efficiency, etc., making it possible to design a more practical system in a shorter period of time.

Furthermore, when a user changes a logical key, the modified part is localized to the virtual/logical key conversion means, so it can be easily handled, and this is effective for flexible system development.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a key conversion storage file system according to the present invention. FIG. 2 is an explanatory diagram showing the contents of the file. 1... File 2... Storage information area 3@... Logical key 4... Real key 5... Real/logical key conversion means 11... Matsubi/G management means 12... Actual key payout Means 13...Data storage area

Claims (1)

[Claims] A key conversion storage file system configured to serially transfer and store a large amount of data from a large number of unspecified starting numbers in a sequential number space, and to access files for efficient searching, the method comprising: a real/logical key conversion means for converting a logical key input by a user into a real key to be directly stored in the file, or converting the stored real key into the logical key and editing and outputting the same; , a mapping management means for checking a mismatch between the logical key and the real key when data is already stored on the file, and a mapping management means for checking the mismatch between the logical key and the real key when data is already stored on the file; A key conversion storage file system comprising a real key payout means for automatically paying out a real key.