JPH06119222A - Document page managing device - Google Patents

Abstract

PURPOSE:To execute a flexible page management by utilizing effectively resources, in a filing system managed by a page unit. CONSTITUTION:The device is provided with a page managing means 11 for managing a document by a page unit, and an indirect page managing means 12 for referring indirectly to a page having directly a substance belonging to one document from other one or more documents and sharing its page. The indirect page managing means 12 cuts off a reference relation to a reference origin, when the page referred to indirectly is updated by a reference destination, secures newly a substance of the page in the reference destination and can set it as a direct page, and also, refers indirectly to the page referred to indirectly from other one or more documents and can derive its page, as well, updates all documents of a derivation destination by correcting a derivation origin and can hold consistency of a document.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document page management device in a filing system managed in page units.

[0002]

2. Description of the Related Art Conventionally, in this type of document page management device, one page belongs to only one document and cannot indirectly belong to another document. That is, the pages could not be shared by different documents. To force a similar prior art, there is a search function called "bookmark". This is to add a "bookmark" to a read-only document page, and group pages with a "bookmark". The “bookmark” is usually stored in a medium different from that of the document and belongs to a technology different from the present invention.

[0003]

As described above, the conventional document page management apparatus has various problems because the pages cannot be shared by different documents. For example, if pages are quoted from various documents and edited into a new document, even if the citation source document is changed, it will not be changed in the citation destination.
In order to change the citation, it was necessary to cite the changed page again from the citation source. Moreover, when reusing a document created in the past and partially changing it, conventionally, it is necessary to write all the changed ones in a storage medium.
Since most of the stored pages have the same contents as before, there was no use of the storage medium. Further, although the document indirectly linked (referenced) is available at the reference destination, the page cannot be derived by referring to the reference page from another document. The present invention solves such a conventional problem, and an object of the present invention is to provide a document page management device capable of performing flexible page management by effectively utilizing resources.

[0004]

In order to achieve the above object, the present invention provides a filing system having page management means for managing a document in page units, in which pages having a direct entity belonging to one document are It is provided with an indirect page management means for indirectly referencing from one or more documents and sharing the page.

According to the present invention, when the indirectly referenced page is updated at the reference destination, the indirect page management means breaks the reference relationship with the reference source and newly secures the page entity at the reference destination. Then, it is made to be a direct page.

The present invention is also one in which the indirect page management means can indirectly reference a page that is indirectly referenced from one or more other documents and share the page.

[0007]

According to the present invention, because of the above configuration, the storage medium can be used efficiently because there is no unnecessary copying of the portion.
In addition, since it is possible to change the reference destination independently of the reference source, version management is possible, and since the reference page can be further referred to from another document, the document page can be derived and the reference source can be changed. When the page of is changed, all derived documents indirectly referenced can be changed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows the configuration of a document page management apparatus in an embodiment of the present invention. In FIG. 1, 1
Reference numeral 1 is a page management means for managing the entire page of the document page by page. Reference numeral 12 is an indirect page management means for sharing a page by indirectly linking the entity of the page, that is, referring to it. When the indirectly linked page is updated at the reference destination, the indirect page management unit 12 breaks the relationship with the reference source and newly allocates the page entity, or determines the indirectly linked page. Further, it has a function of indirectly linking and sharing.

In FIG. 1, documents D1 to D3 are
A page is a reference source document that has an entity. Document D
Reference numeral 4 denotes a reference document, which is a page D4 in which the page D1-1 of the document D1 and the page D2-1 of the document D2 are indirectly linked.
-1 and D4-2. Therefore, the page D1-1 of the document D1 is shared by the document D1 and the document D4,
The second page D2-1 is shared by the document D2 and the document D4. The document D5 is a reference destination update document, and is a document including pages D5-1 and D5-2 indirectly linking the page D2-3 of the document D2 and the page D3-1 of the document D3. Since the second page D5-2 was updated,
The link to the page D3-1 of the document D3 is cut off, a new page entity is secured, and the page is directly under the document D5. The document D6 is a reference-derived document, and is a page D obtained by further indirectly linking the indirectly linked page D4-1 of the document D4.
6-1 and a page indirectly linked to page D2-2 of document D2. That is, the first page D1-1 of the document D1
Is shared by the document D1, the document D4, and the document D6, but the entity of the page is held by the document D1.

FIG. 2 shows a specific example of one page management entry 20. In this embodiment, all pages of one document are
It is composed of an ordered set of a plurality of page management entries 20. In FIG. 2, the page information includes page identification information 21 for uniquely identifying the page entity, information 22 for identifying whether the page storage information 23 points to the page entity or indirectly. Have. The page storage information 23 is information for pointing the indirect page information entry 32 that indirectly points to the page entity or the page entity in FIG. The document identification information 24 is information for identifying the document to which the page belongs. Referenced information 25
Stores information for indicating the indirect page information 31 in FIG.

FIG. 3 shows one indirect page information management table 30.
Shows a specific example of. This indirect page information management table 3
0 is composed of one indirect page information 31 and a plurality of indirect page information entries 32. 3, unlike the page information of FIG. 2, the page information of the indirect page information 31 includes only page identification information 31a that uniquely identifies the entity of the page. The indirect reference number 31b is one indirect page information management table 30.
Represents the number of page management entries 20 that point to
There are as many indirect page information entries 32 as there are 1b. The indirect reference page storage information 31c is information for indicating the indirect page information entry 32. The document identification information 32a is information for identifying the document including the page management entry 20 of FIG. 2 which indicates the indirect page information entry 32. Referenced information 32b
Stores information for pointing to the page management entry 20 of FIG. 2, which points to the indirect page information entry 32.

FIG. 4 schematically shows the relationship between FIGS. 2 and 3 in one embodiment of the present invention. In FIG. 4, reference numeral 41 is a page management table in which an ordered set of all pages belonging to the document D1 is managed by the page management entry 20 of FIG. 2, and each page management entry indicates the substance of each page. Four
Reference numeral 2 denotes a page management table in which an ordered set of all pages belonging to the document D2 is managed by the page management entry 20 shown in FIG. 2, and each page management entry indicates the substance of each page. Reference numeral 43 denotes a page management table in which an ordered set of all pages belonging to the document D3 is managed by the page management entry 20 of FIG. 2. Although the page management entry of page 2 indicates the entity of page, page 1 and page The page management entry of n3 is indirectly the entity of page 2 of the page management table 41 and the page management table 42, respectively.
Refers to the substance of page 1. That is, document D3 shares page 2 of document D1 with document D1 and page 1 of document D2 with document D2. Here, the entity is taken like page 2 of the page management table 43 only when page 1 of the document D3 is changed. Reference numeral 44 is the indirect page information management table 30 of FIG. 3 for page 2 of the document D1, and 45 is the document D.
The indirect page information management table 30 of FIG. 3 for the page 1 of 2 and 46 is a page data storage area, and the substance of the page is assigned here.

When a document having a page entity is created, page management tables such as page management tables 41 and 42 are created. When an arbitrary page of the document indirectly links a page of another document, that is, when the page indirectly references, if the indirect page information management table 30 of the reference page already exists, the existing indirect page. The indirect page information entry 32 is secured from the information management table 30, linked to the page management entry 20 to be referred to, and indirectly linked to the actual page. If the indirect page information management table 30 of the reference page does not exist, the indirect page information management table 30 linked to the page management entry 20 indicating the actual page is created, the indirect page information entry 32 is secured, and the reference is made. It is linked to the page management entry 20 and indirectly linked to the actual page.

When there is a change in the page that is indirectly linked, that is, the page that is indirectly referenced, the entry that is indirectly referenced is deleted from the indirect page information management table 30, and the indirect page information 31 is indirect. The reference number 31b is decremented, and the page management table of the changed document takes substance. if,
If the document indirectly referred to is only the current target document, the indirect page information management table 30 is deleted, and the referenced information 25 of the page management entry 20 holding the entity is cleared.

FIG. 5 schematically shows the relationship among a page entity, a page management entry, and an indirect page information management table in one embodiment of the present invention. In FIG. 5, 51 is a page entity (1). Reference numeral 52 denotes the page entity (2), which is a page secured when the corresponding page is updated in the document to which the page management entry 56 belongs. Reference numeral 53 is a page management entry that directly manages the page entity 51.
Is an indirect page information management table that manages pages that indirectly reference page entity 51, and there are two documents that indirectly reference page entity 51 in one step in the figure. Then
Indirect page information entries (1) and (2), respectively. Reference numerals 55 and 56 are page management entries of documents that indirectly reference the page entity 51. Reference numeral 57 is an indirect page information management table that manages the page 55 of a document that indirectly references the page entity 51 and the page that indirectly references the page entity 51, and indirectly manages the page entity 51. The document referred to in two stages through the entry 55 is one indirect page information entry (1) in the figure. Reference numeral 58 denotes an indirect page information management table 57 that indirectly refers to the page entity 51 in two steps.
Is a page management entry in.

As described above, in the above-described embodiment, the page management table managed by the page management entry is provided for all the pages of one document, and the indirect page information management is further performed when each page has a reference relationship. By providing and managing the table, it is possible to perform flexible page management that effectively uses resources.

[0017]

As is apparent from the above embodiment, the present invention provides a filing system having page management means for managing a document in page units, in which a page having a direct entity belonging to one document is replaced with another page. Since the page is shared by indirectly referring to the above document, the storage medium can be used efficiently without unnecessary copying of the portion.

According to the present invention, when the indirectly referenced page is updated by the reference destination, the indirect page management means breaks the reference relationship with the reference source and newly secures the entity of the page at the reference destination. Since it is set as the direct page, the document can be updated without changing the reference source document, and so-called version management is possible.

The present invention also enables the indirect page management means to indirectly reference a page that is indirectly referenced from one or more other documents and share the page. Since it is possible to derive the document and all the documents of the derivation destination can be updated by modifying the derivation source, it is possible to maintain the consistency of the document in the reference source and the reference destination.

[Brief description of drawings]

FIG. 1 is a schematic block diagram showing the configuration of a document page management apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing an example of a page management entry in the embodiment.

FIG. 3 is a schematic diagram showing an example of an indirect page information management table in the same embodiment.

FIG. 4 is a schematic diagram showing a relationship between a page management entry, a page management table, and an indirect page information management table in the embodiment.

FIG. 5 is a schematic diagram showing a relationship among a page entity, a page management entry, and an indirect page information management table in the embodiment.

[Explanation of symbols]

 11 page management means 12 indirect page management means 20 page management entry 30 indirect page information management table

Claims (3)

[Claims] 1. A page management means for managing a document in page units,
A document page management apparatus including an indirect page management unit that indirectly refers to a page having a direct entity belonging to one document from one or more other documents and shares the page. 2. The indirect page management means, when the indirectly referenced page is updated at the reference destination, breaks the reference relationship with the reference source, newly secures the entity of the page at the reference destination, and reports directly. The document page management device according to claim 1, which is a page. 3. The document page according to claim 1 or 2, wherein the indirect page management means shares the page indirectly referred to from one or more other documents. Management device.