Interface ReportDataFactory

All Known Implementing Classes:
CachingReportDataFactory, EmptyReportDataFactory, NamedStaticReportDataFactory, SimpleSQLReportDataFactory, SQLReportDataFactory, StaticReportDataFactory, TableReportDataFactory

public interface ReportDataFactory
The report data-factory is responsible for querying the data from arbitary datasources.
Author:
Thomas Morgner
  • Method Summary

    Modifier and Type
    Method
    Description
    void
    Closes the report data factory and all report data instances that have been returned by this instance.
    Derives a freshly initialized report data factory, which is independend of the original data factory.
    void
     
    queryData(String query, DataSet parameters)
    Queries a datasource.
  • Method Details

    • open

      void open()
    • queryData

      ReportData queryData(String query, DataSet parameters) throws ReportDataFactoryException
      Queries a datasource. The string 'query' defines the name of the query. The Parameterset given here may contain more data than actually needed. The dataset may change between two calls, do not assume anything!
      Parameters:
      query -
      parameters -
      Returns:
      Throws:
      ReportDataFactoryException
    • close

      void close()
      Closes the report data factory and all report data instances that have been returned by this instance.
    • derive

      Derives a freshly initialized report data factory, which is independend of the original data factory. Opening or Closing one data factory must not affect the other factories.
      Returns: