JPH0358146A - File exchange system between different kinds of computer systems - Google Patents

Abstract

PURPOSE:To considerably reduce the description volume of parameters by indicating the combination of patterns constituting each record in accordance with the kind of record by a parameter at the time of converting data file. CONSTITUTION:A file 1 where information is registered with a record as the unit and a parameter 2 which can be defined as one pattern of one data item or a series of data item groups with respect to the record and can arbitrarily indicate the attribute change to data items are inputted, and pattern information related to an exchange object file and attribute change information of data items are outputted to a file by information matching. A parameter 6 indicating the combination of patterns constituting the record discriminated by a key out of patterns defined in a first step 3 is read in and is expanded in a memory, and a record stored in a file 4 is read and a pattern definition file 5 is referred to change data items. Thus, already prepared pattern information is used though a record of a new kind is added.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a file exchange method between heterogeneous computer systems with different code systems. [Prior Art] Conventional file exchange methods between heterogeneous computer systems involve arranging the data items constituting each type of record stored in the file to be exchanged, and determining the arrangement of each data item in the record. Attribute information such as data format and number of digits, and data attributes after conversion were specified using fixed parameters.

[Problem to be solved by the invention]

In the conventional file exchange method between heterogeneous computer systems described above, every time a new type of record was added to the file to be exchanged, it was necessary to specify all information about that record using parameters. Generally, data files for business processing store multiple types of records at the same time, but these records are rarely in completely different record formats, and when viewed through these different types of records, a series of data A group of items (for example, record common control section, etc.) often appears. The present invention is capable of registering information regarding a series of the same data item group in a file in advance as a pattern, and at the time of actual data file exchange, specifying a combination of patterns for each type of record using parameters. The aim is to make it possible to reuse existing pattern information as much as possible even when a new type of record is added, for example. This makes it possible to significantly reduce the amount of parameter description compared to conventional methods.

[Means to solve the problem]

The method for exchanging files between heterogeneous computer systems of the present invention relates to records having one or more types of formats stored in a file to be exchanged, and the arrangement of data items constituting each record within the record. A file in which information representing attributes is registered in advance, and a parameter that can be defined as one data item or one pattern of a series of data items for the record, and can instruct arbitrary attribute conversion for each data item. a first step of outputting pattern information regarding the exchange target file and attribute conversion information of data items to a file by inputting and comparing the information; and a first step of outputting the exchange target file and the first step. With respect to the file outputted in and the record having one or more types of formats stored in the file to be exchanged, a parameter indicating pattern information predefined in the first step of checking the record. and a second step of inputting the information, comparing the information, converting data item attributes as instructed by the input parameters of the first step, and outputting the results to a file.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings. Figure 1 is a functional ellipse diagram of the present invention. Copy source text collection 1 contains attribute information such as the arrangement of data items within the record and the data format and number of digits of each data item for all types of records stored in the file to be exchanged. This is a file that has been registered in source format in advance.

Parameter 2 is an instruction parameter that allows you to define only the type of pattern you need as one data item or one pattern of a series of data items (the idea of patterns will be explained later based on Figure 2). Information on which line number to which line number of which record registered in the original collection 1 should be considered as one pattern, and conversion information for data items that require conversion of item attributes can be specified. It has become.

In the first step 3, copy original text collection 1 and parameter 2 are input, and according to the instruction content of parameter 2, pattern definition information is output to pattern definition file 5 while referring to copy original text collection 1.

That is, in the first step 3, first, parameter 2 is input, and the pattern target record name and pattern target item range specified therein are obtained.

The pattern target item range is a relative line number from which line to which line, starting from the first line of each record in which data item attribute information is registered in the source format for each record in copy source text collection 1. Directed.

Furthermore, if there is a data item attribute conversion instruction, it is also obtained at the same time. Data item attribute conversion is instructed by the relative line number that specifies the data item to be converted and the bare attribute conversion keyword.

In this way, the information necessary for one pattern definition is the parameter 2.
The first step 3 refers to the copy original collection 1 based on this information. In other words, the first step 3 is to refer to the copy source text collection 1 using the record name specified by the parameter 2 as a key, obtain the source definition information regarding that record, and then select the range from the first line number indicating the pattern target item range. Extract the item definition information of
Furthermore, if there is a data item attribute conversion instruction, that information is also taken into account, the pattern definition information is modified, and the pattern definition information is output to the pattern definition file 5. In addition,
A number obtained by adding 1 to the number of patterns currently registered in the pattern definition file 5 is assigned to the pattern output to the pattern definition file 5 as its identifier. By repeating the above process for the number of pattern definitions specified by parameter 2, pattern definition file 5 is created.
You can register only the required types of patterns.

Next, file 4 is a file to be exchanged, and stores one or more types of records, and the record information is registered in advance in copy original text collection 1.

Parameter 6 includes key information for identifying the type of record stored in file 4, and which pattern combination defined in the first step 3 is used to identify the record identified by that key. This is a parameter that indicates. That is, in the second step 7, first,
All parameters 6 are read and the instruction information is expanded into memory. Next, one record code stored in file 4 is read from the beginning, and the value of the data item that identifies the type of record is compared with the information developed in the memory, and the pattern of the record just read is determined. get information. Next, the pattern definition file 5 is referenced using the pattern number in the pattern configuration information (already assigned in the first step 3) as a key, and detailed information such as the data item arrangement and item attributes of the pattern is and converts the data item according to its contents.

Repeat the above process for all patterns for the record currently being processed. When processing of one record is completed, output the result to file 8. By repeating this process for all records stored in file 4, an exchange file after data format conversion is created in file 8.

Figure 2 represents the idea of patterns.

Record 9 shows one record format,
The records are a, b, c, d, e, f,
This indicates that the seven data items of g are omitted. On the other hand, record 10 is a record in a different format from record 9, and is ordered from the beginning as a, b, c, f, g.
, d, and e. Here, the data items that make up records 9 and 10 have the same lowercase letters (a in record 9 and a in record 10).
If the data items indicated by a) have the same attributes (data format, digits, etc.), consider a, b, and C as a series of data item groups, and use pattern number 1, pattern number 1, etc.
Similarly, define d and e as pattern number 2, and f and g as pattern number 3. By doing this, it can be expressed that record 9 is determined by pattern numbers 1, 2, and 3, and record 10 is determined by pattern numbers 1, 3, and 2, respectively. [Effects of the Invention] As explained above, according to the present invention, information regarding records stored in a file to be exchanged can be acquired one by one by inputting a collection of copy original texts prepared in advance. It is no longer necessary to describe data item attributes in detail using parameters, and a series of data items that often appear between records of different types can be defined in advance as a pattern, so when a new type of record occurs, etc. , it becomes possible to reuse existing pattern definition information, and as a result, the amount of parameter description can be reduced.

[Brief explanation of drawings]

FIG. 1 is a functional elliptical diagram of an embodiment of the present invention, and FIG. 2 is a diagram for explaining the concept of patterns. 1... Copy original text collection, 2... Parameters, 3...
1st step, 4... file, 5... pattern definition file, 6... parameter, 7... second step, 8... file.

Claims (1)

[Claims] Regarding records having one or more types of formats stored in the file to be exchanged, information indicating the arrangement and attributes of the data items constituting each record in the record is provided in advance. Registered files and
By inputting parameters that can be defined as one data item or one pattern of a series of data items for the record, and allowing arbitrary attribute conversion instructions for each data item, and comparing the information, a first step of outputting pattern information regarding the exchange target file and attribute conversion information of data items to a file; With respect to a record having one or more types of formats, by inputting a parameter indicating the putter information predefined in the first step of configuring the record and comparing the information, A file exchange method between heterogeneous computer systems, comprising a second step of converting data item attributes as instructed by input parameters in the first step and outputting the results to a file.