Class EmptyReportDataFactory

java.lang.Object
org.jfree.report.EmptyReportDataFactory
All Implemented Interfaces:
ReportDataFactory

public class EmptyReportDataFactory extends Object implements ReportDataFactory
Creation-Date: 17.11.2006, 16:51:01
Author:
Thomas Morgner
  • Constructor Details

    • EmptyReportDataFactory

      public EmptyReportDataFactory()
  • Method Details

    • open

      public void open()
      Specified by:
      open in interface ReportDataFactory
    • queryData

      public 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!

      Specified by:
      queryData in interface ReportDataFactory
      Parameters:
      query -
      parameters -
      Returns:
      Throws:
      ReportDataFactoryException
    • close

      public void close()
      Closes the report data factory and all report data instances that have been returned by this instance.
      Specified by:
      close in interface ReportDataFactory
    • derive

      public ReportDataFactory 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.
      Specified by:
      derive in interface ReportDataFactory
      Returns: