Interface IndexTaskQueue<T extends IndexTask>

    • Method Detail

      • getSize

        int getSize()
        Retrieve the number of elements in the queue.
        Returns:
        size of the queue.
      • getQueuedEntries

        List<T> getQueuedEntries()
        Retrieve a list of all queued entries.
        Returns:
        a list of IndexTask instances.
      • getQueuedEntries

        List<T> getQueuedEntries​(int limit)
        Retrieve a list of the N of queued entries.
        Parameters:
        limit - first N entries to retrieve.
        Returns:
        a list of IndexTask instances.
      • enqueue

        void enqueue​(T task)
        Add a new task to this queue.
        Parameters:
        task -
      • enqueueAll

        void enqueueAll​(Collection<T> tasks)
        Add a collection of tasks to this queue.
        Parameters:
        tasks -
      • flushQueue

        @Deprecated
        List<T> flushQueue​(int numberOfEntries)
        Deprecated.
        Flush the contents of the queue, returning those elements currently queued as the result.

        Tasks that were added immediately before calling this method are not returned. See flushQueue() for an alternative.

        Parameters:
        numberOfEntries - the maximum number of entries to return. This should return the n first entries in the queue.
        Returns:
        the list of entries on the queue when it was flushed.
      • flushQueue

        @Deprecated
        List<T> flushQueue()
        Deprecated.
        Flush the contents of the queue, returning those elements currently queued as the result.

        This method waits until tasks that we added immediately before calling this method are available. See flushQueue(int) for an alternative.

        Returns:
        the list of entries on the queue when it was flushed.
      • flushQueue

        @Deprecated
        default int flushQueue​(com.atlassian.fugue.Effect<T> actionOnTask)
        Deprecated.
        since 7.0.1. Use flushAndExecute(Consumer)
        Flush the contents of the queue, applying the given action to each flushed entry.

        This method waits until tasks that we added immediately before calling this method are available. See flushAndExecute(Consumer, int) for an alternative.

        Parameters:
        actionOnTask - action to perform for each entry
        Returns:
        the number of entries that were flushed.
        Since:
        5.6
      • flushAndExecute

        int flushAndExecute​(Consumer<T> actionOnTask)
        Flush the contents of the queue, applying the given action to each flushed entry.

        This method waits until tasks that we added immediately before calling this method are available. See flushAndExecute(Consumer, int) for an alternative.

        Parameters:
        actionOnTask - action to perform for each entry
        Returns:
        the number of entries that were flushed.
        Since:
        7.0.1
      • flushQueue

        @Deprecated
        default int flushQueue​(com.atlassian.fugue.Effect<T> actionOnTask,
                               int numberOfEntries)
        Deprecated.
        Flush the contents of the queue, applying the given action to each flushed entry.

        Tasks that were added immediately before calling this method are not returned. See flushAndExecute(Consumer) for an alternative.

        Parameters:
        actionOnTask - action to perform for each entry
        numberOfEntries - the maximum number of entries to flush. This should flush the n first entries in the queue.
        Returns:
        the number of entries that were flushed.
        Since:
        5.6
      • flushAndExecute

        int flushAndExecute​(Consumer<T> actionOnTask,
                            int numberOfEntries)
        Flush the contents of the queue, applying the given action to each flushed entry.

        Tasks that were added immediately before calling this method are not returned. See flushAndExecute(Consumer) for an alternative.

        Parameters:
        actionOnTask - action to perform for each entry
        numberOfEntries - the maximum number of entries to flush. This should flush the n first entries in the queue.
        Returns:
        the number of entries that were flushed.
        Since:
        7.0.1
      • flushQueueWithActionOnIterableOfTasks

        @Experimental
        int flushQueueWithActionOnIterableOfTasks​(Consumer<Iterable<T>> actionOnIterableOfTasks,
                                                  int numberOfTasks)
        Flush the contents of the queue, applying the given action to an iterable of tasks.

        flushQueue(Effect, int) applys an action to an individual task. In contrast, this method applies an action to an iterable of tasks.

        If the specified action throws a RuntimeException, tasks are returned to the queue so that they can be processed again. The exception will be propagated so clients must handle it accordingly.

        Parameters:
        actionOnIterableOfTasks - action on iterable of tasks
        numberOfTasks - the maximum number of tasks to retrieve from the queue
        Returns:
        the number of tasks that were flushed to the index.
        Since:
        5.9
      • reset

        void reset()
        Remove all queued index tasks from this queue.