Package com.swiftmq.swiftlet.queue

Class FlowController

java.lang.Object
com.swiftmq.swiftlet.queue.FlowController
public abstract class FlowController extends Object
Abstract base class for flow controllers. A flow controller computes a delay, dependent on throughput, queue backlog, and transaction size.
Author:
IIT GmbH, Bremen/Germany, Copyright (c) 2000-2002, All Rights Reserved

  • Field Details

    • receiverCount

      protected final AtomicInteger receiverCount

    • queueSize

      protected final AtomicInteger queueSize

    • lastDelay

      protected final AtomicLong lastDelay

    • sentCount

      protected final AtomicLong sentCount

    • sentCountCalls

      protected final AtomicLong sentCountCalls

    • receiveCount

      protected final AtomicLong receiveCount

    • receiveCountCalls

      protected final AtomicLong receiveCountCalls

    • timestamp

      protected final AtomicLong timestamp

  • Constructor Details

    • FlowController

      public FlowController()

  • Method Details

    • getStartQueueSize

      public int getStartQueueSize()
      Returns the FC start queue size
      Returns:
      start queue size

    • setQueueSize

      public void setQueueSize(int queueSize)
      Sets the queue size (message count).
      Parameters:
      queueSize - queue size.

    • setReceiverCount

      public void setReceiverCount(int count)
      Sets the receiver count.
      Parameters:
      count - receiver count.

    • setReceiveMessageCount

      public void setReceiveMessageCount(int count)
      Sets the receive message count.
      Parameters:
      count - receive message count.

    • setSentMessageCount

      public void setSentMessageCount(int count)
      Sets the sent message count.
      Parameters:
      count - sent message count.

    • getLastDelay

      public long getLastDelay()
      Returns the last computed fc delay.
      Returns:
      delay.

    • getNewDelay

      public abstract long getNewDelay()
      Computes and returns a new delay.
      Returns:
      delay.

    • toString

      public String toString()
      Overrides:
      toString in class Object