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 package com.sun.grizzly.async;

 import java.net.SocketAddress;

 import java.nio.ByteBuffer;

 import java.nio.channels.SelectionKey;

 /**

  * Interface represents condition, which will be checked when 

  * {@link AsyncQueueReader} was able to read new portion of data from 

  * {@link SelectableChannel}, whoch is associated with a

  * {@link SelectionKey}. Custom condition code could decide whether read data

  * is enough to call <code>AsyncReadCallbackHandler.onReadCompleted()</code> or

  * more data is expected.

  * 

  * @author Alexey Stashok

  */

 public interface AsyncReadCondition {

     /**

      * Method checks, whether data, which was read to the {@link ByteBuffer},

      * is read completely, or custom code expects more data.

      * 

      * @param key {@link SelectionKey}

      * @param srcAddress {@link SocketAddress} remote address data was read from

      * @param buffer {@link ByteBuffer} data was read to

      * @return true, if data reading is completed, false - if mora data is expected

      */

     public boolean checkAsyncReadCompleted(SelectionKey key, 

             SocketAddress srcAddress, ByteBuffer buffer);

 }