org.apache.poi.xssf.streaming
Class GZIPSheetDataWriter

java.lang.Object
  org.apache.poi.xssf.streaming.SheetDataWriter
      org.apache.poi.xssf.streaming.GZIPSheetDataWriter

public class GZIPSheetDataWriter
extends SheetDataWriter

Sheet writer that supports gzip compression of the temp files.

Constructor Summary

GZIPSheetDataWriter()

Method Summary

java.io.File	createTempFile() Create a temp file to write sheet data.
java.io.Writer	createWriter(java.io.File fd) Create a writer for the sheet data.
java.io.InputStream	getWorksheetXMLInputStream()

Methods inherited from class org.apache.poi.xssf.streaming.SheetDataWriter

close, finalize, getLowestIndexOfFlushedRows, getNumberOfCellsOfLastFlushedRow, getNumberOfFlushedRows, outputQuotedString, writeCell, writeRow

Methods inherited from class java.lang.Object

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

Constructor Detail

GZIPSheetDataWriter

public GZIPSheetDataWriter()
                    throws java.io.IOException

Throws:

java.io.IOException

Method Detail

createTempFile

public java.io.File createTempFile()
                            throws java.io.IOException

Description copied from class: SheetDataWriter

Create a temp file to write sheet data. By default, temp files are created in the default temporary-file directory with a prefix "poi-sxssf-sheet" and suffix ".xml". Subclasses can override it and specify a different temp directory or filename or suffix, e.g. .gz

Overrides:

createTempFile in class SheetDataWriter

Returns:

temp file to write sheet data

Throws:

java.io.IOException

createWriter

public java.io.Writer createWriter(java.io.File fd)
                            throws java.io.IOException

Description copied from class: SheetDataWriter

Create a writer for the sheet data.

Overrides:

createWriter in class SheetDataWriter

Parameters:

fd - the file to write to

Returns:

a wrapped instance of GZIPOutputStream

Throws:

java.io.IOException

getWorksheetXMLInputStream

public java.io.InputStream getWorksheetXMLInputStream()
                                               throws java.io.IOException

Overrides:

getWorksheetXMLInputStream in class SheetDataWriter

Returns:

a GZIPInputStream stream to read the compressed temp file

Throws:

java.io.IOException