org.springframework.batch.item.excel.poi
Class PoiItemReader<T>

java.lang.Object
  org.springframework.batch.item.ItemStreamSupport
      org.springframework.batch.item.support.AbstractItemStreamItemReader<T>
          org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader<T>
              org.springframework.batch.item.excel.AbstractExcelItemReader<T>
                  org.springframework.batch.item.excel.poi.PoiItemReader<T>

Type Parameters:

T - the type

All Implemented Interfaces:

org.springframework.batch.item.file.ResourceAwareItemReaderItemStream<T>, org.springframework.batch.item.ItemReader<T>, org.springframework.batch.item.ItemStream, org.springframework.batch.item.ItemStreamReader<T>, org.springframework.beans.factory.InitializingBean

public class PoiItemReader<T>
extends AbstractExcelItemReader<T>

ItemReader implementation which uses apache POI to read an Excel file. It will read the file sheet for sheet and row for row. It is based on the FlatFileItemReader

Since:

0.5.0

Author:

Marten Deinum

Field Summary

Fields inherited from class org.springframework.batch.item.excel.AbstractExcelItemReader

logger

Constructor Summary

PoiItemReader()

Method Summary

protected void	doClose()
protected int	getNumberOfSheets() The number of sheets in the underlying workbook.
protected Sheet	getSheet(int sheet)
protected void	openExcelFile(org.springframework.core.io.Resource resource) Open the underlying file using the WorkbookFactory.

Methods inherited from class org.springframework.batch.item.excel.AbstractExcelItemReader

afterPropertiesSet, doOpen, doRead, jumpToItem, read, setEndAfterBlankLines, setLinesToSkip, setResource, setRowMapper, setRowSetFactory, setSkippedRowsCallback, setStrict

Methods inherited from class org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader

close, getCurrentItemCount, isSaveState, open, setCurrentItemCount, setMaxItemCount, setSaveState, update

Methods inherited from class org.springframework.batch.item.ItemStreamSupport

getExecutionContextKey, setExecutionContextName, setName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.springframework.batch.item.ItemStream

close, open, update

Constructor Detail

PoiItemReader

public PoiItemReader()

Method Detail

getSheet

protected Sheet getSheet(int sheet)

Specified by:

getSheet in class AbstractExcelItemReader<T>

Parameters:

sheet - the sheet index

Returns:

the sheet or null when no sheet available.

getNumberOfSheets

protected int getNumberOfSheets()

Description copied from class: AbstractExcelItemReader

The number of sheets in the underlying workbook.

Specified by:

getNumberOfSheets in class AbstractExcelItemReader<T>

Returns:

the number of sheets.

doClose

protected void doClose()
                throws Exception

Overrides:

doClose in class AbstractExcelItemReader<T>

Throws:

Exception

openExcelFile

protected void openExcelFile(org.springframework.core.io.Resource resource)
                      throws Exception

Open the underlying file using the WorkbookFactory. We keep track of the used InputStream so that it can be closed cleanly on the end of reading the file. This to be able to release the resources used by Apache POI.

Specified by:

openExcelFile in class AbstractExcelItemReader<T>

Parameters:

resource - the Resource pointing to the Excel file.

Throws:

Exception - is thrown for any errors.