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About the data elements

There are several elements in the ROM specification that apply to data rather than visual report items. These data elements describe data sources, data sets, and rows of data. The following elements are data elements:

  • DataSource

    The DataSource element represents a connection to an external data system, such as an RDBMS, text file, or XML file.

  • ScriptedDataSource

    The ScriptedDataSource element represents a connection to an external data system that is not an ODA data source. The developer must provide scripts for opening and closing a scripted data source. ScriptedDataSource inherits from DataSource.

  • DataSet

    The DataSet element represents a tabular result set retrieved from a data source. A DataSet element defines a query, filters, parameters, and result set columns.

  • JointDataSet

    The JointDataSet element represents a data set that results from a join of several data sets.

  • ScriptedDataSet

    The ScriptedDataSet element represents a data set that is associated with a scripted data source. The developer must provide scripts for opening, closing, and fetching a row from a scripted data source. ScriptedDataSet inherits from DataSet.

  • Row

    The Row element represents an integral set of column values that are a part of a result set.

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