| org.jfree.report.DataFactory
All known Subclasses: org.jfree.report.TableDataFactory, org.pentaho.plugin.jfreereport.helper.PentahoTableDataFactory, org.jfree.report.modules.misc.datafactory.sql.SimpleSQLReportDataFactory, org.jfree.report.states.CachingDataFactory, org.pentaho.reportdesigner.crm.report.reportexporter.jfreereport.NullDataFactory, org.pentaho.reportdesigner.crm.report.datasetplugin.SimplePreviewableSQLReportDataFactory, org.jfree.report.modules.misc.datafactory.StaticDataFactory,
| DataFactory | | public interface DataFactory (Code) | | Creates a tablemodel on request. If the returned tablemodel is a
org.jfree.report.util.CloseableTableModel the tablemodel must remain open until the DataFactory remains open. The TableModel should not be disposed until the
data-factory has been closed.
author:
Thomas Morgner |
| Method Summary | |
| public void | close()
Closes the data factory and frees all resources held by this instance. | | public DataFactory | derive()
Returns a copy of the data factory that is not affected by its anchestor and holds no connection to the anchestor
anymore. | | public void | open()
Opens the data factory. | | public TableModel | queryData(String query, DataRow parameters)
Queries a datasource. |
| close | | public void close()(Code) | | Closes the data factory and frees all resources held by this instance.
|
| derive | | public DataFactory derive() throws ReportDataFactoryException(Code) | | Returns a copy of the data factory that is not affected by its anchestor and holds no connection to the anchestor
anymore. A data-factory will be derived at the beginning of the report processing.
a copy of the data factory.
throws:
ReportDataFactoryException - if an error occured. |
| open | | public void open()(Code) | | Opens the data factory. This initializes everything. Performing queries on data factories which have not yet been
opened will result in exceptions.
|
| queryData | | public TableModel queryData(String query, DataRow parameters) throws ReportDataFactoryException(Code) | | Queries a datasource. The string 'query' defines the name of the query. The Parameterset given here may contain
more data than actually needed for the query.
The parameter-dataset may change between two calls, do not assume anything, and do not hold references to the
parameter-dataset or the position of the columns in the dataset.
Parameters:
query - the query string
Parameters:
parameters - the parameters for the query the result of the query as table model.
throws:
ReportDataFactoryException - if an error occured while performing the query. |
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