org.zkoss.poi.poifs.nio

Class FileBackedDataSource

java.lang.Object

org.zkoss.poi.poifs.nio.DataSource

org.zkoss.poi.poifs.nio.FileBackedDataSource

public class FileBackedDataSource
extends DataSource

A POIFS DataSource backed by a File

Constructor Summary

Constructors

Constructor and Description
FileBackedDataSource(File file)
FileBackedDataSource(FileChannel channel)

Method Summary

Modifier and Type	Method and Description
void	close() Close the underlying stream
void	copyTo(OutputStream stream) Copies the contents to the specified OutputStream
ByteBuffer	read(int length, long position)
long	size()
void	write(ByteBuffer src, long position)

Methods inherited from class java.lang.Object

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

Constructor Detail

FileBackedDataSource

public FileBackedDataSource(File file)
                     throws FileNotFoundException

Throws:

FileNotFoundException

FileBackedDataSource

public FileBackedDataSource(FileChannel channel)

Method Detail

read

public ByteBuffer read(int length,
                       long position)
                throws IOException

Specified by:

read in class DataSource

Throws:

IOException

write

public void write(ByteBuffer src,
                  long position)
           throws IOException

Specified by:

write in class DataSource

Throws:

IOException

copyTo

public void copyTo(OutputStream stream)
            throws IOException

Description copied from class: DataSource

Copies the contents to the specified OutputStream

Specified by:

copyTo in class DataSource

Throws:

IOException

size

public long size()
          throws IOException

Specified by:

size in class DataSource

Throws:

IOException

close

public void close()
           throws IOException

Description copied from class: DataSource

Close the underlying stream

Specified by:

close in class DataSource

Throws:

IOException