Package org.apache.wiki.workflow

Class DecisionQueue

java.lang.Object
org.apache.wiki.workflow.DecisionQueue
All Implemented Interfaces:
Serializable
public class DecisionQueue
extends Object
implements Serializable
Keeps a queue of pending Decisions that need to be acted on by named Principals.
Since:
2.5
See Also:
Serialized Form

  • Constructor Details

    • DecisionQueue

      public DecisionQueue()
      Constructs a new DecisionQueue.

  • Method Details

    • add

      protected void add​(Decision decision)
      Adds a Decision to the DecisionQueue; also sets the Decision's unique identifier.
      Parameters:
      decision - the Decision to add

    • decisions

      protected Decision[] decisions()
      Protected method that returns all pending Decisions in the queue, in order of submission. If no Decisions are pending, this method returns a zero-length array.
      Returns:
      the pending decisions

    • remove

      protected void remove​(Decision decision)
      Protected method that removes a Decision from the queue.
      Parameters:
      decision - the decision to remove

    • getActorDecisions

      public Collection<Decision> getActorDecisions​(Session session)
      Returns a Collection representing the current Decisions that pertain to a users's Session. The Decisions are obtained by iterating through the Session's Principals and selecting those Decisions whose Decision.getActor() value match. If the session is not authenticated, this method returns an empty Collection.
      Parameters:
      session - the wiki session
      Returns:
      the collection of Decisions, which may be empty

    • decide

      public void decide​(Decision decision, Outcome outcome) throws WikiException
      Attempts to complete a Decision by calling Decision.decide(Outcome). This will cause the Step immediately following the Decision (if any) to start. If the decision completes successfully, this method also removes the completed decision from the queue.
      Parameters:
      decision - the Decision for which the Outcome will be supplied
      outcome - the Outcome of the Decision
      Throws:
      WikiException - if the succeeding Step cannot start for any reason

    • reassign

      public void reassign​(Decision decision, Principal owner) throws WikiException
      Reassigns the owner of the Decision to a new owner. Under the covers, this method calls Decision.reassign(Principal).
      Parameters:
      decision - the Decision to reassign
      owner - the new owner
      Throws:
      WikiException - never