JP4392780B2 - Data storage processing method, program and storage medium thereof, and processing system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, when a created data file is stored for a long period of time as in a CAD system or when data is exchanged with another processing system via the data file, the data structure is changed in the processing system. The present invention relates to a technique that enables data in the data file to be stored in a data storage unit of the processing system .
[0002]
[Prior art]
In general, computer software (program, hereinafter simply referred to as software) is constantly added and changed for improvement, and data structures are frequently changed. Data used in software has a certain data structure and is composed of various elements. For example, some of such elements are deleted, added, or changed. When the data structure is changed in this way, the data of the data file written by the previous version (version) software of the processing system is read by the current version due to the difference in the data structure and stored in the data storage unit of the processing system. The problem of being unable to store occurs. In order to avoid this, in the prior art, a method of converting a data file so as to match a new version by a method of converting the data file is used.
[0003]
[Problems to be solved by the invention]
However, in the above-described prior art, a great effort is required that the data file must be converted every time the version of the system changes. Further, if the original data file is also saved for safety, the storage capacity of the storage means for storing the data file is required many times. Furthermore, when a user of another system uses the created data file, the data file must be converted every time due to the difference in version, which is very troublesome.
[0004]
An object of the present invention is to solve such a problem of the prior art. Specifically, the data of the data file is read regardless of the change in the data structure of the processing system, and the data storage unit of the processing system The data storage processing method, the program and the storage medium, and the processing system can be used without worrying about the version of the processing system that created the data file.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a data storage unit for storing data, an operation information storage unit for storing storage operation information related to a data storage operation processing method determined according to data structure elements and element value types, and data A data storage processing method in a processing system having an element information storage unit that stores reference information to the storage operation information for each element of a structure, and a data processing unit, wherein the data processing unit stores data in a data file When storing in the data storage unit, the element information storage unit is referred to, and if the constituent elements of the data structure of the data file exist in the element information storage unit, they are stored in the element information storage unit. The corresponding storage operation information is obtained from the operation information storage unit based on the reference information of the element, and the data of the data file is previously stored using the storage operation information. When an element that is stored in the data storage unit and exists in the data structure of the data file does not exist in the element information storage unit, the element is skipped or the data in the data file is used as a reference element If the element existing in the element information storage unit does not exist in the data structure of the data file, it is determined whether the data of the element can be generated from other data described in the data file. If it can be generated, the data of the element is generated from other data of the data file and stored in the data storage unit.
[0006]
The invention according to claim 2 is a program for causing a computer to execute the processing of the data processing unit in the data storage processing method according to claim 1.
[0007]
The invention of claim 3 is a computer-readable storage medium storing a program, and is a storage medium storing the program according to claim 2.
[0008]
According to a fourth aspect of the present invention, there is provided a data storage unit for storing data, an operation information storage unit for storing storage operation information related to a data storage operation processing method determined according to data structure elements and element value types, and data A processing system having an element information storage unit that stores reference information to the storage operation information for each element of a structure, and a data processing unit, wherein the data processing unit transfers data of a data file to the data storage unit When storing, the element information storage unit is referred to, and when the constituent elements of the data structure of the data file exist in the element information storage unit, reference to the element stored in the element information storage unit Based on the information, the corresponding storage operation information is obtained from the operation information storage unit, and the data of the data file is stored in the data storage unit using the storage operation information. If an element present in the data structure of the data file does not exist in the element information storage unit, the element information is skipped or stored as the reference element in the data storage unit, and the element information is stored. When an element existing in the storage unit does not exist in the data structure of the data file, it is determined whether the data of the element can be generated from other data described in the data file. Element data is generated from other data of the data file and stored in the data storage unit.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram of a main part of a processing system showing an embodiment of the present invention. As shown in the figure, the processing system of this embodiment includes a data storage unit 1 that stores data, an element information storage unit 2 that stores reference information for storage operation information for each element, and elements of the data structure. And an operation information storage unit 3 for storing storage operation information related to the processing method of the data storage operation determined according to the type of element value, a data extraction processing unit 4 for retrieving data from the data storage unit 1, and data for the data A data storage processing unit 5 to be stored in the storage unit 1 is provided. The data storage unit 1, the element information storage unit 2, and the operation information storage unit 3 are realized by, for example, a hard disk device and a RAM, and the data extraction processing unit 4 and the data storage processing unit 5 are a RAM that stores a program and its RAM. This is realized by a CPU that operates according to a program. In the above, the data structure elements are data structure elements such as properties, page setting information, and body text, and the data structure elements called properties include file information, file outline, detailed information, and the like. Furthermore, there are elements such as file name, type, and location in the data structure element called file information. Further, regarding the data structure of the text, each chapter can be considered as an element, and a character part, a data pasting part, an image pasting part, etc. constituting each chapter can be considered as an element. With such a configuration, in the data storage method of this embodiment, for example, data storage information (element information storage unit 2 and operation information) stored in the processing system includes data of a file taken into the processing system from another processing system. The information is stored in the data storage unit 1 in this processing system according to the information stored in the storage unit 3).
[0010]
FIG. 2 shows the structure of the data file. As shown in the figure, this data file is composed of data structure information (information describing the data structure of data stored in the data file) and data. The data structure information includes each data structure name (A, B, etc. in the example shown), the number of elements of each data structure A, B, and the element name of each data structure A, B (Aa, Ab in the example shown). , ---, Ba, Bb ---, etc.), element type names (in the example shown, x, y, ---, k, l ---), etc.
[0011]
FIG. 3 shows an operation flow at the time of data storage in this embodiment. Hereinafter, the operation during data storage will be described with reference to FIG.
First, the data storage processing unit 5 opens a data file for storing data in the data storage unit 1 (S1). For example, this data file is a data file taken from another processing system. Subsequently, the data storage processing unit 5 reads the data structure information of the data file (S2), and takes out the data structure name written at the head of the data structure information (S3). This data structure name is A, for example. Next, reference information (pointer) to the storage operation information related to the extracted data structure name (A in the above example) is extracted from the element information storage unit 2 (S4). This information table is referred to as Table A. Further, for example, the number of elements of the data structure A written at the position next to the data structure name in the data structure information extracted in step S2 is extracted, and this is set as NA (S5). Subsequently, the storage operation reference table FunctionPointerTableA of the data structure A is secured with the element number NA (S6). Then, i = 0 is set (S7), and the i-th element name (for example, Aa) of the data structure A written at the position next to the number of elements in the data structure information extracted in step S2 and the next position For example, the type name (for example, x) of the element Aa is extracted (S9). In this way, the data storage processing unit 5 determines whether or not the extracted element Aa is described in Table A extracted in step S4 (S10), and if it is described (YES in S10), the element Aa is stored from Table A. Reference information to the operation information is acquired and stored in FunctionPointerTableA [i] (S11). If not described (NO in S10), the type name x of the element Aa is retrieved from the dummy data element table (see FIG. 1) of the element information storage unit 2 and dummy storage operation information of the element type name x is retrieved. Reference information is acquired and stored in FunctionPointerTableA [i] (S12). That is, when the component of the data structure of the data file matches the component of the data structure of the processing system, the data file is stored using the storage operation information of the data structure element of the processing system, and the data file If the component is not in the processing system , that is, if the element existing in the data structure of the data file does not exist in the element information storage unit, the element is skipped, for example, as described later. It is processed as.
[0012]
While increasing the value of i (S13), the processing of steps S9 to S12 is executed for each element, and when the execution for the number of elements is completed (NO in S8), the data storage processing unit 5 is in the data structure of the data file. It is determined whether or not the processing of steps S3 to S12 has been completed for all data structures (all data structure names) (S14). If not (NO in S14), the data structure of the next data structure name is determined. Repeat from step S3. Thus, when the above-described processing is completed for all the data structures (YES in S14), the data storage processing unit 5 reads data from the data file (data file in which data is to be stored) (S15). Then, from the top of the data structure name data of the data file, first, the data structure name written at the top of one data is taken out, and an area for storing the data is secured in the data storage unit 1 and secured. The completed area is initialized (S17).
[0013]
Subsequently, i = 0 is set (S18), and the first element from the storage operation reference table FunctionPointerTableK (K is A, B, C, ---) that stores the reference information for the data of the data structure name. The reference information to the storage operation information of the name element is acquired, the storage operation information indicated by the reference information is acquired, and the data of the element name is stored in the data storage unit 1 according to the storage operation information (S20) . For example, if the storage operation information is a function such as “read structA a (argument)”, the element “a” of the data structure “structA” is read from the beginning of the file given by the argument and secured in the data storage unit 1. It is stored in the storage location for the element a of the data structure structA. Also, if the storage operation information is dummy storage operation information and a function such as “dummy read int (argument)”, an operation is performed to extract int (integer) type data from the beginning of the file given by the argument. . The retrieved data may be configured to be skipped and discarded, or stored as a reference element (as a completely different data structure from the data structure name). Good.
[0014]
Subsequently, the value of i is increased (S21), and data storage is executed in the same manner for the data of the next element (S20). When data storage is completed for all elements of the data structure (NO in S19), step Returning to S16, steps S16 and after are repeated for the next data structure. Then, when the storage process is completed for all data in the data file (YES in S16), the process of this operation flow is terminated. In addition, in the above description, elements that are present in the data structure of the processing system and are not present in the data structure of the data file to be stored in the data storage unit, that is, elements present in the element information storage unit However, if it does not exist in the data file structure , the element is stored while being generated from the data described in the data file as much as possible. For example, if there is a data structure that represents an arc, the arc elements are the arc start point, arc end point, arc center in the data file, and the arc start point and arc end point in the processing system. In the case of the center of the arc and the radius of the circle on which the arc rides, the radius of the circle on which the arc rides is generated, for example, from the starting point of the arc and the center of the arc in the data file and stored as elements of the data file.
[0015]
It should be noted that an element that exists in the data structure of the processing system and does not exist in the data structure of the data file to be stored in the data storage unit may be initialized and stored at the time of data storage. Is possible. For example, 0 or NULL is stored in the storage location of the element in the data storage unit 1.
[0016]
Thus, according to this embodiment, even if the data file and the processing system have different data structures, data can be read from the data file and stored in the data storage unit, and stored as a reference element. Stored data can be retrieved. When the stored data is extracted and written to a file, the data structure information and then the data itself are extracted and written to the file.
[0017]
The embodiment of the present invention has been described with respect to the processing system having the configuration shown in FIG. 1, but the program programmed according to the data storage method as described above is stored in, for example, a removable storage medium, and the storage medium Is mounted on an information processing apparatus such as a personal computer that has not been able to store data according to the present invention, and the information processing apparatus also fetches the program via a network. Data storage according to the present invention can be performed.
[0018]
【The invention's effect】
As described above, according to the present invention, the following effects can be obtained.
(1) When data in a data file is stored in the data storage unit, the data structure is stored by using data storage operation information associated with each element of the data structure or each element value type. The previous data file or the like can be read regardless of the change of the data file, and therefore the data file can be used without worrying about the version of the processing system.
(2) For an element that does not exist in the data structure of the processing system and exists in the data structure of the data file to be stored in the data storage unit, the data is stored by skipping that element when storing the data. As a result, when the data component of the processing system is deleted, unnecessary data is not stored, the data after reading and storing is easy to predict, and an expected storage result can be obtained. Alternatively, by storing the element as a reference element when storing data, the element can be referred to later or added to another element.
(3) For an element that exists in the data structure of the processing system and does not exist in the data structure of the data file to be stored in the data storage unit, the data of the element is described in the data file If it can be generated from other data, when data is stored, the data of that element is generated from other data and stored, so if the data component of the processing system has been added, it is read from the data file and stored After that, data consistency can be obtained correspondingly, and more stable operation can be expected.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a main part of a processing system showing an embodiment of the present invention.
FIG. 2 is a data configuration diagram of a main part of a processing system showing an embodiment of the present invention.
FIG. 3 is an operation flowchart of a data storage method according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Data storage part 2 Element information storage part 3 Operation information storage part 4 Data extraction process part 5 Data storage process part

Claims (4)

A data storage unit for storing data, an operation information storage unit for storing storage operation information related to a data storage operation processing method determined according to data structure elements and element value types, and the storage for each data structure element A data storage processing method in a processing system having an element information storage unit for storing reference information to operation information and a data processing unit,
The data processing unit
When storing the data of the data file in the data storage unit, refer to the element information storage unit,
When a component of the data structure of the data file exists in the element information storage unit, the operation information storage unit responds based on the reference information of the element stored in the element information storage unit. Obtaining storage operation information, storing the data file data in the data storage unit using the storage operation information,
When an element present in the data structure of the data file does not exist in the element information storage unit, the data file data is stored in the data storage unit as a reference element or skipping the element,
If an element existing in the element information storage unit does not exist in the data structure of the data file, it can be determined by determining whether the data of the element can be generated from other data described in the data file. In this case, the data of the element is generated from other data of the data file and stored in the data storage unit.
A data storage processing method characterized by the above. The program for making a computer perform the process of the said data processing part in the data storage processing method of Claim 1. A computer-readable storage medium storing the program, wherein the storage medium stores the program according to claim 2. A data storage unit for storing data, an operation information storage unit for storing storage operation information related to a data storage operation processing method determined according to data structure elements and element value types, and the storage for each data structure element A processing system having an element information storage unit for storing reference information to operation information and a data processing unit,
The data processing unit
When storing the data of the data file in the data storage unit, refer to the element information storage unit,
When a component of the data structure of the data file exists in the element information storage unit, the operation information storage unit responds based on the reference information of the element stored in the element information storage unit. Obtaining storage operation information, storing the data file data in the data storage unit using the storage operation information,
When an element present in the data structure of the data file does not exist in the element information storage unit, the data file data is stored in the data storage unit as a reference element or skipping the element,
If an element existing in the element information storage unit does not exist in the data structure of the data file, it can be determined by determining whether the data of the element can be generated from other data described in the data file. In this case, the data of the element is generated from other data of the data file and stored in the data storage unit.
A processing system characterized by that.

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