org.apache.poi.xssf.streaming
Class GZIPSheetDataWriter

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

All Implemented Interfaces:

java.io.Closeable

public class GZIPSheetDataWriter
extends SheetDataWriter

Sheet writer that supports gzip compression of the temp files.

GZIPSheetDataWriter

public GZIPSheetDataWriter()
                    throws java.io.IOException

Throws:

java.io.IOException

GZIPSheetDataWriter

public GZIPSheetDataWriter(SharedStringsTable sharedStringsTable)
                    throws java.io.IOException

Parameters:

sharedStringsTable - the shared strings table, or null if inline text is used

Throws:

java.io.IOException

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

decorateInputStream

protected java.io.InputStream decorateInputStream(java.io.FileInputStream fis)
                                           throws java.io.IOException

Description copied from class: SheetDataWriter

Override this to translate (such as decrypt or expand) the file input stream as it is being read from disk. The default behavior is to to pass the stream through unmodified.

Overrides:

decorateInputStream in class SheetDataWriter

Parameters:

fis - the stream to decorate

Returns:

a decorated stream

Throws:

java.io.IOException

See Also:

SheetDataWriter.decorateOutputStream(FileOutputStream)

decorateOutputStream

protected java.io.OutputStream decorateOutputStream(java.io.FileOutputStream fos)
                                             throws java.io.IOException

Description copied from class: SheetDataWriter

Override this to translate (such as encrypt or compress) the file output stream as it is being written to disk. The default behavior is to to pass the stream through unmodified.

Overrides:

decorateOutputStream in class SheetDataWriter

Parameters:

fos - the stream to decorate

Returns:

a decorated stream

Throws:

java.io.IOException

See Also:

SheetDataWriter.decorateInputStream(FileInputStream)