Package net.sf.jasperreports.engine

Interface JRRewindableDataSource

All Superinterfaces:

JRDataSource

All Known Subinterfaces:

JsonData<T>, RandomAccessDataSource

All Known Implementing Classes:

AbstractPoiXlsDataSource, AbstractXlsDataSource, AbstractXmlDataSource, BookmarksFlatDataSource, ColumnValuesDataSource, ExcelDataSource, FastExcelDataSource, JaxenXmlDataSource, JRAbstractBeanDataSource, JRBeanArrayDataSource, JRBeanCollectionDataSource, JREmptyDataSource, JRHibernateIterateDataSource, JRHibernateIterateDataSource, JRHibernateListDataSource, JRHibernateListDataSource, JRHibernateScrollDataSource, JRHibernateScrollDataSource, JRJpaDataSource, JRJpaDataSource, JRMapArrayDataSource, JRMapCollectionDataSource, JRTableModelDataSource, JRXlsxDataSource, JRXmlDataSource, JsonDataCollection, JsonDataSource, JsonQLDataSource, ListOfArrayDataSource, RandomDataSource, RewindableDataSourceCollection, SortedDataSource, XalanXmlDataSource, XlsDataSource

public interface JRRewindableDataSource
extends JRDataSource

This interface represents a data source which can go back to the first element.

Author:

Teodor Danciu (teodord@users.sourceforge.net)

Method Summary

Modifier and Type	Method	Description
void	moveFirst()	Moves back to the first element in the data source.

Methods inherited from interface net.sf.jasperreports.engine.JRDataSource

getFieldValue, next

Method Details

moveFirst

void moveFirst()
        throws JRException

Moves back to the first element in the data source.

Throws:

JRException