Package org.zkoss.zkex.zul.impl

Class OperationQueue

java.lang.Object
org.zkoss.zkex.zul.impl.OperationQueue
public class OperationQueue extends Object
A queue for storing Operation and is thread-safe. This class is for model sharer developer only, you rarely need to use this class.

Available in ZK PE and ZK EE.

Since:
3.0.0
Author:
Dennis.Chen

  • Constructor Details

    • OperationQueue

      public OperationQueue()

  • Method Details

    • addListener

      public void addListener(OperationQueueListener listener)
      Add a listener to this queue

    • removeListener

      public void removeListener(OperationQueueListener listener)
      Remove a listener to this queue.

    • put

      public void put(Operation op)
      Put an operation to queue
      Parameters:
      op - the operation.

    • element

      public Operation element()
      Get an operation from queue, doesn't remove it.
      Returns:
      the first operation in queue, null if not such operation.

    • hasElement

      public boolean hasElement()
      Check is there any operation in queue.
      Returns:
      true if there exist any operation in queue.

    • next

      public Operation next()
      Get an operation from queue, and then remove it.
      Returns:
      the first operation in queue, null if not such operation.

    • remove

      public void remove()
      Remove the first operation in queue if exist.