The main goal of this project is to deliver to programmers and customers a convenient solution for the report generating with the definite data obtained from different sources (database, text file, xml file). The flexible interface is a distinctive feature of this product. It gives a possibility to use this Report Engine as an independent product to generate the report in different views or to integrate it into any program product using the granted common program interface (public API), to tune it to one’s own needs and also to extend the base functionality.

Report generating by means of Report Engine is based on xml/xsl transformations.

This part of Report Engine releases the view – appearance report marking. The own marking format is done in the context of this part of the product realization based on xml with the fixed number of the view elements and marking of the output reports.

This part of Report Engine operates in the following way: input view.xml is transformed into xsl to process the obtained data (data.xml) by the processing means with the corresponding xsl file. For transformation in html we get the result already at this stage.

For output in pdf we get fo-xml (xml corresponding to FO standard) at this stage including both data and the marking information, and only then after FOP library processing we get pdf.

This part deals with receiving of a user’s data from different sources and preparing of the data for the final report. The data receiving module work is based on the user’s query.xml file.

The adapters architecture necessary to connect to different data sources is made in the context of this module realization. Now we have released an adapter to connect to the database based on jdbc driver indicated by the user.

Operating of this part of Report Engine results in structured data for the report in data.xml format. The data set is transformed into data.xml format for the subsequent xsl transformation based on view.xml

Report Engine can be used in two different ways: as an independent application and as API for programmers intending to include Report Engine as a library in their projects.

Primary GUI is implemented for reports forming by users on their own files. ReportFactory class is called out from GUI with delivery of the input data and the report generating starts. There is a possibility to attach the user’s generator classes to get different output formats. The flexible configuration system allows to tune practically all the parameters used during generating. It is also possible to launch this application from the command line.

Using of Report Engine as a library a programmer both gets an access to high level classes (ReportFactory) and has got a possibility to redefine practically all the classes used during the report generating.

The main goal of this software is to provide the user with a useful determination of the structure visual composition and the report view. This application is a web application and it is available via a usual web browser. It allows both to create and export view.xml and query.xml for future use in Report Engine and to realize the complete cycle of the report creating and generating. It also allows to keep and edit the reports saved before.

This module is assigned for visual final report view generating. It allows to format the appearance of the final report and to determine in it the layout of static and dynamic elements.   The static elements allow to add html elements to the report. The dynamic tables and charts contain the query data.

This module allows to create xml file with the selected data source queries. It represents a query generator to the data source. Allows to select and check the data source connection and sets the query rules for the required data.