JP2003167776A - Object management device, object editing method, and object editing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an object management device allowing a client to continue an edit work again even after the reacess to a WWW server as in an edit screen. <P>SOLUTION: When the editing of an object is instructed from a user, whether the edit information of the object is ON or OFF is checked. When the edit information is ON, an error message is displayed to end the processing because the editing is recognized and the transfer to the edit screen cannot be performed screen. When the edit information is OFF, the edit information is set to ON, and the transfer to the edit screen is then performed, so that the edit work can be carried out. When the end of the edit work is instructed, the edit information is set to OFF, and the edit screen is ended. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object management device, an object editing method, and an object editing program applied in a client / server system.

[0002]

2. Description of the Related Art In order to request or provide a service via a network, a client and a server must operate in cooperation with each other.
To do so, appropriate procedures are required.

Therefore, a WWW browser operates as a client, has a data change function, and has a CGI (Common Gateway Interface) or Microsoft software on the WWW server.
Consider an application that operates in an environment such as ASP (Active Server Pages) of t company.

One of the challenges in making a WEB application successful is retaining user information while a user in a session moves between pages of the application. The protocol HTTP between the WWW browser and the WWW server is a protocol that does not maintain the connection state (works in a sessionless manner).

That is, the WEB server treats each HTTP request for a page as an independent request. The server does not retain any information about the previous request, even if the previous request was several seconds before the current request.

As described above, it is difficult to create an application such as an online catalog because the information related to the previous request cannot be held. Such applications may require that the user keep track of selected catalog items while navigating between the various pages in the catalog.

On the other hand, when changing an object having a complicated hierarchical structure or a part of a large-scale object,
In order to edit an object, an operation involving a plurality of screen transitions is required. In the I / F between the WWW application and the system, for example, a file pointer is recorded in the case of a file system, or an object-oriented language is developed. In the environment, it is often necessary to maintain the connection state between the application and the system, such as holding instance variables of objects. Therefore, it has been attempted to maintain the connection state between a plurality of screens or frames by using an ASP session object or the like that gives a pseudo session state.

[0008]

However, since the resources on the server side are used up by maintaining the connection state, the operation such as "return" or "next" is performed on the WWW browser side. In this case, there may be a problem that the state of the WWW browser side and the state of the WWW server side are inconsistent and freeze.

The present invention has been made in view of the above circumstances, and it is possible to reject a request from another client even when another client requests acquisition of the object during editing. An object of the present invention is to provide an object management device, an object editing method, and an object editing program that can be performed.

Further, even when the line with the WWW server is disconnected during the editing of an object due to a freeze or the like, the object management apparatus can make it possible to continue the editing work from the screen being edited again. , Object editing method, and object editing program.

It is another object of the present invention to provide an object management device, an object editing method, and an object editing program that allow an object being edited to be referred to by a request from another client.

[0012]

In order to achieve the above object, an invention according to claim 1 is an object management apparatus which operates a WWW browser as a client and edits a held object according to an operation input from the client. A reference means for referencing the held object, an editing means for editing the object in accordance with an operation input from the client, a storage means for storing an identifier for identifying the object being edited, and a control means for controlling each of the above means. The control means stores an identifier for identifying the object being edited by the client in the storage means, sequentially updates the object in response to an operation input from the client, and edits the storage means. Other clients to edit the object in which the identifier of the object is stored It is controlled so as not to be executed.

According to a second aspect of the present invention, in the first aspect of the invention, the control means stores the editor identification information for identifying the client who is editing the object in the storage means, and communication with the client is interrupted. In this case, the control is performed so that only the object edit request from the client indicated by the editor identification information is accepted.

According to a third aspect of the present invention, there is provided an object management apparatus which operates a WWW browser as a client and edits a held object according to an operation input from the client, and a reference means for referring to the held object, An editing unit that edits an object according to an operation input from a client, a storage unit that stores an identifier for identifying an object being edited, and editor identification information for identifying a client who is editing the object. And a control means for controlling each of the above means. The control means creates a duplicate of the object when an edit request for the object from the client is received, and the duplicate object is generated by an operation input from the client. Perform editing work on
After the editing is completed, each of the above means is controlled so as to overwrite the duplicate object.

According to a fourth aspect of the present invention, there is provided an object editing method for an object management apparatus, which operates a WWW browser as a client and edits a held object according to an operation input from the client. By this, the identifier for identifying the object being edited is stored in the storage unit, the objects are sequentially updated in response to the operation input from the client, and the object whose identifier being edited is stored in the storage unit is edited by another client. It is characterized by making it impossible to execute.

According to a fifth aspect of the present invention, in the fourth aspect of the invention, editor identification information for identifying a client who is editing an object is stored in the storage means.
When communication with the client is interrupted, only the object edit request from the client indicated by the editor identification information is accepted.

According to a sixth aspect of the present invention, there is provided an object editing method in an object management apparatus, which operates a WWW browser as a client, and edits a held object according to an operation input from the client. When a request is received, an identifier for identifying the object being edited and editor identification information for identifying the client who is editing the object are stored in the storage means, and the object is duplicated. Is created, an editing operation is performed on the duplicate object by an operation input from the client, and the duplicate object is overwritten after the editing is completed.

According to a seventh aspect of the present invention, there is provided an object editing program executed by an object management apparatus, which operates a WWW browser as a client and edits a held object according to an operation input from the client. In response to the object edit request, the identifier for identifying the object being edited is stored in the storage unit, the objects are sequentially updated in response to the operation input from the client, and the other identifier of the object whose identifier is being edited is stored in the storage unit. The feature is that it is controlled so that editing by the client cannot be executed.

According to an eighth aspect of the invention, in the invention of the seventh aspect, the editor identification information for identifying the client who is editing the object is stored in the storage means, and when communication with the client is interrupted. It is characterized in that it is controlled so as to accept only the object edit request from the client indicated by the editor identification information.

According to a ninth aspect of the present invention, there is provided an object editing program executed by an object management apparatus, which operates a WWW browser as a client and edits a held object according to an operation input from the client. When receiving an edit request from the editor, the identifier for identifying the object being edited and the editor identification information for identifying the client who is editing the object are stored in the storage means, and Create a duplicate of the object, perform edit work on the duplicate object by operation input from the client, and after editing,
It is characterized in that the duplicate object is controlled to be overwritten.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Next, with reference to the accompanying drawings, an object management apparatus, an object editing method of the present invention,
An embodiment of the object editing program will be described in detail. 1 to 8, there is shown an embodiment of an object management apparatus, an object editing method, and an object editing program of the present invention.

(First Embodiment) FIG. 1 shows the configuration of a first embodiment in which the present invention is applied to a client / server system. As shown in FIG. 1, this embodiment has a WW
W server 1 and multiple clients (WWW browser)
It is composed of two and three. The WWW server 1 is a computer that executes processing from clients (WWW browsers) 2 and 3, and the clients (WWW browser) 2 and 3 are computers that call processing.

FIG. 2 shows the configuration of the WWW server 1. As shown in FIG. 2, the WWW server 1 includes a control unit 4, a reference unit 5, an editing unit 6, a data unit 7, and other functional units 8.

The control unit 4 controls the entire control and the main body of the WWW server 1. The reference unit 5 is in charge of a program that executes object reference (RO access). The editing unit 6 is in charge of editing a document. The data section 7 is a section for storing object data such as editing information and editor ID.

FIG. 3 shows the structure of the data section 7. As shown in FIG. 3, the table provided in the data section 7 includes an object name, a creation date, editing information, and a data file.

In the present embodiment having the above-mentioned configuration, even when the line with the WWW server is disconnected due to a freeze or the like during editing of an object, the editing work can be continued from the screen being edited again. The purpose is to do.

Even when there is an edit request from another client for the object being edited,
The purpose is to be able to reject requests from other clients.

Therefore, in the present embodiment, the object being edited receives the edit request from the client, and the object being edited is edited by the editing unit 6.
Thus, every time there is an operation input from the client, a new object that reflects this operation input is created. Further, as shown in FIG. 3, the table in the data section 7 manages whether or not the object is being edited, and while the flag being edited is ON, the object from another client is managed. Control to deny access to.

Next, the operation procedure of this embodiment will be described with reference to the flow chart shown in FIG. When the user gives an instruction to edit the object, the control unit 4
Checks whether the editing information of the object is ON or OFF (step S1). If the editing information is OFF (step S1 / NO), the control unit 4 sets the editing information to ON (step S2). Next, the screen is changed to the edit screen and the edit process is executed (step S3).
At this time, the editing unit 6 creates a new object that reflects the operation input each time there is an operation input from the client. When the end of the editing work is instructed, the control unit 4 sets the editing information to OFF (step S
4), the edit screen is ended.

If the editing information is ON in step S1, the control unit 4 cannot display the edit screen, so an error message is displayed (step S5), and the process ends.

As described above, in this embodiment, the editing unit 6 creates a new object reflecting the operation input of the client each time there is an operation input of the client and manages whether or not the object is being edited. However, it is controlled so as to reject an edit request from another client for the object being edited. Therefore, even if the line with the WWW server is disconnected due to a freeze or the like during editing of the object, the editing work can be continued from the screen being edited again.

(Second Embodiment) Next, a second embodiment according to the present invention will be described. Just by masking the editing request from another client as in the first embodiment described above, the editing information cannot be turned off when the editing client terminates abnormally. Therefore, the object becomes permanently uneditable.
Since the WWW browser can normally be terminated “normally” regardless of the behavior of the WWW application, abnormal termination of the above WWW application can frequently occur.

Therefore, in this embodiment, an ID for identifying an editor is registered in a table as shown in FIG.
By making D persistent, it is possible to return to the state of being edited again even if it is abnormally terminated.

As the editor ID, one that can specify the client or the actual operating user is adopted. It is conceivable that the client can be specified by recording the IP address of the WWW client or the random number generated by the WWW server in a cookie. To identify the actual operating user, the user ID can be used as it is if the system is combined with a password arbitrarily set by the user (a separate UI is required) or user authentication.

Next, the operation procedure of this embodiment will be described with reference to the flow chart shown in FIG.

First, when the user gives an instruction to edit an object, the control unit 4 checks whether the editing information of the object is ON or OFF (step S1).
0). If the editing information is OFF (step S1
(0 / NO), the control unit 4 not only sets the editing information to ON, but also sets the editor ID (step S1).
1), edit processing is performed (step S12). At this time, the editing unit 6 creates a new object that reflects the operation input each time there is an operation input from the client.
When the end of the editing work is instructed, the information being edited is OF
The mode is set to F (step S13), and the edit screen ends.

In step S10, the editing information is O
If it is N (step S10 / YES), the control unit 4
Judges whether the editor ID is the same as the stored ID (step S14), and if the editor ID is the same as the stored ID (step S14 / YES), it is possible to transit to the editing screen, Editing work can be performed (step S12).

In step S14, if the editor ID is not the same as the stored ID, the control unit 4 displays an error message (step S15) and ends the editing screen.

As described above, in this embodiment, by registering the ID for identifying the editor in the table and making the ID permanent, it is possible to return to the state of being edited again even in the case of abnormal termination.

(Third Embodiment) Next, a third embodiment according to the present invention will be described. In the above-described second embodiment, the content of data can be referred to by the plurality of WWW clients other than the editor for the object being edited. However, the data being edited may be subject to the consistency as normal data.

FIG. 7 shows the table structure of the data section 7 of this embodiment. This table, as shown in FIG.
The thumbnail (reduced image) of the object is registered. For example, if there is a function to display a reduced image (thumbnail) of a data file in a list display of objects, etc., the corresponding thumbnail has not been changed even if the data file is changed. It can happen. Therefore, an editing document is created so that even an object being edited can be referred to.

Next, the operation procedure of this embodiment will be described with reference to the flow chart shown in FIG. When the user gives an instruction to edit the object, the control unit 4 checks whether the editing information of the object is ON or OFF (step S20). If the editing information is OFF (step S20 / NO), the control unit 4 not only sets the editing information ON but also sets the editor ID. The editing unit 6 also creates an editing document to be edited (step S21) and performs an editing process on the editing document to be edited (step S22). Then, when the end of the editing work is instructed, the control unit 4 changes the information during editing to OF.
Set to F, the editing document is overwritten (step S23), and then the editing screen is ended (step S26).

In step S20, the editing information is O
If it is N (step S20 / YES), the control unit 4
Judges whether the editor ID is the same as the stored ID (step S24), and if the editor ID is the same as the stored ID (step S24 / YES), it is possible to transit to the editing screen and edit. Work can be performed (step S22).

In step S24, the editor ID is not the same as the stored ID (step S24 / N
O), the control unit 4 displays an error message (step S25), and ends the edit screen.

As described above, according to the present embodiment, a copy of the target object (editing object) is created at the time of transition to the editing screen, and the editing work is exclusively performed on this editing object. In this way, even an object being edited can be referred to by a request from another client.

The above-described embodiment is a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention.

[0047]

As is apparent from the above description, according to the present invention, the object edit request from the client enables
An identifier for identifying the object being edited is stored in the storage means, the objects are sequentially updated in response to an operation input from the client, and the other client edits the object for which the identifier being edited is stored in the storage means. By disabling the setting, even if the client re-accesses the WWW server while the editing screen is displayed due to a freeze or the like, the editing work can be continued again, and exclusive processing can be safely realized at low cost. .

Further, editor identification information for identifying a client who is editing an object is stored in the storage means, and when communication with the client is interrupted, an editing request for the object from the client indicated by the editor identification information is made. By accepting only, it is possible to return to the editing state even when the WWW browser is suddenly terminated.

When an edit request for an object is received from a client, an identifier for identifying the object being edited and editor identification information for identifying the client editing the object are provided. By storing in the storage means, creating a duplicate of the object, executing edit work on the duplicate object by operation input from the client, and overwriting the duplicate object after the editing is completed, the original object is Since it is saved, even if the object is being edited, the object can be referred to by a request from another client without inconsistency.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a client / server system.

FIG. 2 is a block diagram showing a configuration of a WWW server.

FIG. 3 is a diagram showing a table configuration of a data section 7 according to the first embodiment.

FIG. 4 is a flowchart showing an operation procedure of the first embodiment.

FIG. 5 is a diagram showing a table configuration of a data section 7 of the second embodiment.

FIG. 6 is a flowchart showing an operation procedure of the second embodiment.

FIG. 7 is a diagram showing a table configuration of a data section 7 according to a third embodiment.

FIG. 8 is a flowchart showing an operation procedure of the third embodiment.

[Explanation of symbols]

1 WWW server A few clients (WWW browser) 4 control unit 5 Reference 6 editorial department 7 data section 8 functional parts

Claims (9)

[Claims] 1. An object management apparatus which operates a WWW browser as a client and edits a held object according to an operation input from the client, and a reference unit for referencing the held object, and an operation from the client. In accordance with the input, there is an editing means for editing the object, a storage means for storing an identifier for identifying the object being edited, and a control means for controlling each of the means, the control means by a client An identifier for identifying the object being edited is stored in the storage means, the objects are sequentially updated according to an operation input from the client, and another client of the object whose identifier is being edited is stored in the storage means. You can control that editing cannot be performed. Object management apparatus according to claim. 2. The control means stores editor identification information for identifying a client who is editing an object in the storage means, and when the communication with the client is interrupted, the editor identification information is stored. The object management apparatus according to claim 1, wherein the object management apparatus is controlled so as to receive only an edit request for the object from the client shown. 3. An object management device that operates a WWW browser as a client and edits a held object according to an operation input from the client, comprising: a reference unit that refers to the held object; Editing means for editing the object according to the operation input; storage means for storing an identifier for identifying the object being edited; and editor identification information for identifying the client who is editing the object, Control means for controlling each of the above means, the control means creates a copy of the object when an edit request for the object from the client is received, and the copy is made by an operation input from the client. Perform editing work on the object and After, the object management unit and controls the above means so as to overwrite the duplicate object. 4. An object editing method of an object management apparatus, which operates a WWW browser as a client and edits a held object in accordance with an operation input from the client, wherein the object is being edited by an object edit request from the client. An identifier for identifying an object is stored in the storage unit, the object is sequentially updated in response to an operation input from the client, and another client edits the object whose identifier being edited is stored in the storage unit. An object editing method characterized by disabling. 5. The editor identification information for identifying a client editing an object is stored in the storage means, and when communication with the client is interrupted, the editor identification information from the client indicated by the editor identification information is stored. The object editing method according to claim 4, wherein only an object editing request is accepted. 6. An object editing method in an object management apparatus, which operates a WWW browser as a client and edits a held object according to an operation input from the client, when an editing request from the client is received for the object. Stores in the storage means an identifier for identifying the object being edited and editor identification information for identifying the client who is editing the object, and creates a duplicate of the object. An object editing method, wherein an editing operation is performed on the duplicate object by an operation input from a client, and after the editing is completed, the duplicate object is overwritten. 7. An object editing program executed in an object management device, which operates a WWW browser as a client and edits a held object according to an operation input from the client, wherein an object editing request from the client An identifier for identifying the object being edited is stored in the storage means, the objects are sequentially updated according to an operation input from the client, and another client of the object whose identifier is being edited is stored in the storage means. An object editing program characterized by controlling editing so that it cannot be executed. 8. An editor identification information for identifying a client who is editing an object is stored in the storage means, and when communication with the client is lost, the editor identification information from the client indicated by the editor identification information is stored. 8. The object editing program according to claim 7, wherein the object editing program is controlled so that only an object editing request is accepted. 9. An object editing program executed by an object management apparatus, which operates a WWW browser as a client and edits a held object in accordance with an operation input from the client, wherein an editing request from the client is sent to the object. When received, an identifier for identifying the object being edited and editor identification information for identifying the client editing the object are stored in the storage means, and a duplicate of the object is created. Then, the object editing program is characterized in that an editing operation is executed on the duplicate object in response to an operation input from the client, and the duplication object is controlled to be overwritten after the editing is completed.