net.sf.mmm.util.io.base
Class StreamUtilImpl.BaseTransferrer

java.lang.Object
  net.sf.mmm.util.io.base.StreamUtilImpl.AbstractAsyncTransferrer
      net.sf.mmm.util.io.base.StreamUtilImpl.BaseTransferrer

All Implemented Interfaces:

Callable<Long>, Stoppable

Direct Known Subclasses:

StreamUtilImpl.ReaderTransferrer, StreamUtilImpl.StreamTransferrer

Enclosing class:

StreamUtilImpl

protected abstract class StreamUtilImpl.BaseTransferrer
extends StreamUtilImpl.AbstractAsyncTransferrer

This is an abstract implementation of the AsyncTransferrer interface, that implements Runnable defining the main flow.

Field Summary

private TransferCallback

callback The callback or null.

Constructor Summary

StreamUtilImpl.BaseTransferrer(TransferCallback callback)
The constructor.

Method Summary

Long	call()
protected abstract long	transfer() This method performs the actual transfer.

Methods inherited from class net.sf.mmm.util.io.base.StreamUtilImpl.AbstractAsyncTransferrer

isCompleted, isStopped, setCompleted, stop

Methods inherited from class java.lang.Object

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

Field Detail

callback

private final TransferCallback callback

The callback or null.

Constructor Detail

StreamUtilImpl.BaseTransferrer

public StreamUtilImpl.BaseTransferrer(TransferCallback callback)

The constructor.

Parameters:

callback - is the callback or null.

Method Detail

transfer

protected abstract long transfer()
                          throws IOException

This method performs the actual transfer.

Returns:

the number of bytes that have been transferred.

Throws:

IOException - if the transfer failed.

call

public Long call()
          throws Exception

Throws:

Exception