Method and apparatus for storing report form embodiment, and method for reading report form

Abstract

The invention discloses a method and an apparatus for storing a report form embodiment. The method comprises the following steps: dividing the report form subject into a three-layer structure including a template layer, a definition layer and an embodiment layer; storing all default attributes of report form embodiment table cell into a default table cell of the report form default object of the template layer; storing the report form definition table cell corresponding to the report form embodiment table cell into the report form definition object of the definition layer, wherein the definition table cell stores the non-default static attribute of the report form embodiment table cell; and storing the report form embodiment table cell into the report form embodiment subject in the embodiment layer, wherein the report form embodiment table cell stores the automatic attribute thereof. The invention also discloses a method for reading the report form embodiment. By utilizing the invention, the memory resource can be saved, and the memory usage efficiency is improved.

Description

technical field [0001] The invention relates to data storage technology, in particular to a report instance storage method and device, and a report reading method. Background technique [0002] In the field of report products, storage of report instances is unavoidable. The so-called report instance refers to the object generated after the report definition is filled with data. In general, report instance objects are much larger than report definition objects. [0003] Table 1 below shows a report definition: [0004] [0005] Table 1 [0006] After filling the above report definition, the report example is shown in Table 2 below: [0007] [0008] Table 2 [0009] A report instance is generally a collection of report cells (or other smallest elements), in which you can obtain the exclusive attributes of the cell, such as font, font size, background color, etc., and some cells may have dozens of attributes , how to effectively organize and store these attributes ...

AI Technical Summary

Problems solved by technology

[0011] This storage method has a simple and clear structure, and also meets the needs of report instance storage. However, since the attributes are unique to cells, the common attributes between cells cannot be shared, which wastes a lot of storage space. When the report data volume is large , it is likely to cause memory exhaustion, which will seriously affect the performance of report products

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