org.jppf.io
Class MultipleBuffersLocation

java.lang.Object
  org.jppf.io.AbstractDataLocation
      org.jppf.io.MultipleBuffersLocation

All Implemented Interfaces:

DataLocation

public class MultipleBuffersLocation
extends AbstractDataLocation

Data location backed by a list of JPPFBuffer.

Author:

Laurent Cohen

Field Summary

Fields inherited from class org.jppf.io.AbstractDataLocation

size, transferring

Fields inherited from interface org.jppf.io.DataLocation

UNKNOWN_SIZE

Constructor Summary

MultipleBuffersLocation(int size)
Initialize this location with the specified size.

MultipleBuffersLocation(JPPFBuffer buffer)
Initialize this location from a single buffer.

MultipleBuffersLocation(List<JPPFBuffer> list, int size)
Initialize this location with the specified list of buffers and size.

Method Summary

DataLocation	copy() Make a shallow copy of this data location.
InputStream	getInputStream() Get an input stream for this location.
OutputStream	getOutputStream() Get an output stream for this location.
int	transferFrom(InputSource source, boolean blocking) Transfer the content of this data location from the specified input source.
int	transferTo(OutputDestination dest, boolean blocking) Transfer the content of this data location to the specified output destination.

Methods inherited from class org.jppf.io.AbstractDataLocation

getSize, setSize

Methods inherited from class java.lang.Object

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

Constructor Detail

MultipleBuffersLocation

public MultipleBuffersLocation(int size)

Initialize this location with the specified size.

Parameters:

size - the total size of the data.

MultipleBuffersLocation

public MultipleBuffersLocation(List<JPPFBuffer> list,
                               int size)

Initialize this location with the specified list of buffers and size.

Parameters:

list - the list of buffers that contain the data.

size - the total size of the data.

MultipleBuffersLocation

public MultipleBuffersLocation(JPPFBuffer buffer)

Initialize this location from a single buffer.

Parameters:

buffer - the buffer that contains the data.

Method Detail

transferFrom

public int transferFrom(InputSource source,
                        boolean blocking)
                 throws Exception

Transfer the content of this data location from the specified input source.

Parameters:

source - - the input source to transfer to.

blocking - - if true, the method will block until the entire content has been transferred.

Returns:

the number of bytes actually transferred.

Throws:

Exception - if an IO error occurs.

transferTo

public int transferTo(OutputDestination dest,
                      boolean blocking)
               throws Exception

Transfer the content of this data location to the specified output destination.

Parameters:

dest - - the output destination to transfer to.

blocking - - if true, the method will block until the entire content has been transferred.

Returns:

the number of bytes actually transferred.

Throws:

Exception - if an IO error occurs.

getInputStream

public InputStream getInputStream()
                           throws Exception

Get an input stream for this location.

Returns:

an InputStream instance.

Throws:

Exception - if an I/O error occurs.

getOutputStream

public OutputStream getOutputStream()
                             throws Exception

Get an output stream for this location.

Returns:

an OutputStream instance.

Throws:

Exception - if an I/O error occurs.

copy

public DataLocation copy()

Make a shallow copy of this data location. The data it points to is not copied.

Returns:

a new DataLocation instance pointing to the same data.