Package org.refcodes.io

Interface BlockProvider<DATA extends Serializable>

Type Parameters:

DATA - The type of the datagram block (array) to be operated with. Do not provide an array type as the methods use to generic type for defining an array argument.

All Known Subinterfaces:

BidirectionalConnectionTransceiver<DATA,INPUT,OUTPUT>, BidirectionalStreamConnectionTransceiver<DATA>, BlockReceiver<DATA>, BlockTransceiver<DATA>, ConnectionReceiver<DATA,CON>, ConnectionTransceiver<DATA,CON>, InputStreamConnectionReceiver<DATA>, LoopbackReceiver<DATA>, LoopbackTransceiver<DATA>, Provider<DATA>, Receiver<DATA>, Transceiver<DATA>

All Known Implementing Classes:

AbstractInputStreamReceiver, AbstractPrefetchInputStreamReceiver, AbstractReceiver, BidirectionalStreamConnectionTransceiverImpl, BidirectionalStreamTransceiverImpl, InputStreamConnectionReceiverImpl, InputStreamReceiverImpl, LoopbackReceiverImpl, LoopbackTransceiverImpl, PrefetchBidirectionalStreamConnectionTransceiverImpl, PrefetchBidirectionalStreamTransceiverImpl, PrefetchInputStreamConnectionReceiverImpl, PrefetchInputStreamReceiverImpl, ReceiverDecorator

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface BlockProvider<DATA extends Serializable>

The BlockProvider is used to receive datagram blocks (arrays) in a unified way. The readDatagrams() method provides the next available datagram block from the counterpart BlockProvider or DatagramProvider; in case there is none available, then this method halts until one is available.

Method Summary

Modifier and Type	Method	Description
default DATA[]	readDatagrams()	Reads (receives) the next datagram block passed from a BlockSender or DatagramSender counterpart.
DATA[]	readDatagrams(int aBlockSize)	Similar to readDatagrams() though at maximum the amount of data as provided by the block-size is returned.

Method Detail

readDatagrams

default DATA[] readDatagrams()
                      throws org.refcodes.component.OpenException,
                             InterruptedException

Reads (receives) the next datagram block passed from a BlockSender or DatagramSender counterpart. In case none datagram block is available, then this method blocks until one is available. When a Thread is waiting for a datagram to be read and Thread.interrupt() is being called, then the operation is aborted and an InterruptedException is thrown.

Returns:

The next datagram block sent from the BlockSender or DatagramReceiver counterpart.

Throws:

org.refcodes.component.OpenException - Thrown in case opening or accessing an open line (connection, junction, link) caused problems.

InterruptedException - Thrown when a Thread is waiting, sleeping, or otherwise occupied, and the Thread is interrupted, either before or during the activity.

readDatagrams

DATA[] readDatagrams(int aBlockSize)
              throws org.refcodes.component.OpenException,
                     InterruptedException

Similar to readDatagrams() though at maximum the amount of data as provided by the block-size is returned.

Parameters:

aBlockSize - The block-size which is not to exceeded by the returned data. A value of -1 specifies to retrieve all available datagrams (same behavior as method readDatagrams().

Returns:

The next short block sent from the BlockSender or DatagramReceiver counterpart.

Throws:

org.refcodes.component.OpenException - Thrown in case opening or accessing an open line (connection, junction, link) caused problems.

InterruptedException - Thrown when a Thread is waiting, sleeping, or otherwise occupied, and the Thread is interrupted, either before or during the activity.