Package org.eclipse.scout.rt.ui.html

Class RequestHistory

java.lang.Object
org.eclipse.scout.rt.ui.html.RequestHistory
@Bean public class RequestHistory extends Object
Keeps track of processed request sequence numbers. Normally, only the last processed sequence number must be remembered. However, there are cases where requests with a higher sequence number are processed first (e.g. a user request may "overtake" a pending poll request). Temporarily missing sequence numbers are remembered in a separate list that is cleaned up again when the request is finally processed.

This class is thread-safe.

  • Constructor Details

    • RequestHistory

      public RequestHistory()

  • Method Details

    • getUiSession

      public UiSession getUiSession()

    • withUiSession

      public RequestHistory withUiSession(UiSession uiSession)

    • getUiSessionId

      protected String getUiSessionId()

    • setRequestProcessed

      public void setRequestProcessed(Long requestSequenceNo)
      Marks the given request sequence number as "processed", i.e. isRequestProcessed(Long) will return true.

    • isRequestProcessed

      public boolean isRequestProcessed(Long requestSequenceNo)
      Returns:
      true if the given request sequence number was already marked as "processed", false otherwise.

    • getLastProcessedSequenceNo

      public Long getLastProcessedSequenceNo()
      Returns:
      the "last processed sequence number", i.e. the highest request sequence number that was marked as "processed".

    • getMissingRequestSequenceNos

      public SortedSet<Long> getMissingRequestSequenceNos()
      Returns:
      a copy of the set of missing request sequence numbers, i.e. sequence numbers that are lower than getLastProcessedSequenceNo() but have not been marked as "processed".

    • toString

      public String toString()
      Overrides:
      toString in class Object