Package org.jboss.elemento.flow

Interface Flow

  • public interface Flow
    An interface to execute a list of asynchronous tasks in parallel or sequentially, or to execute a single task repeatedly as long as certain conditions are met.

    The tasks share a context that can be used to store data in a map or on a stack.

    • Method Detail

      • parallel

        static <C extends FlowContext> Sequence<C> parallel​(C context,
                                                    List<Task<C>> tasks)
        Executes a list of asynchronous tasks in parallel (all at once).
        Type Parameters:
        C - the type of the shared context
        Parameters:
        context - the context shared between tasks
        tasks - the list of tasks to execute in parallel
        Returns:
        an interface to control whether the execution of the tasks should fail fast or fail last

      • sequential

        static <C extends FlowContext> Sequence<C> sequential​(C context,
                                                      List<Task<C>> tasks)
        Executes a list of asynchronous tasks in sequence (one after the other).
        Type Parameters:
        C - the type of the shared context
        Parameters:
        context - the context shared between tasks
        tasks - the list of tasks to execute in order
        Returns:
        an interface to control whether the execution of the tasks should fail fast or fail last

      • repeat

        static <C extends FlowContext> Repeat<C> repeat​(C context,
                                                Task<C> task)
        Executes the given task repeatedly as long as the conditions defined by Repeat are met.
        Type Parameters:
        C - the type of the shared context
        Parameters:
        context - the context shared between the iterations
        task - the task to execute while the predicate evaluates to true
        Returns:
        an interface to control the interval, timeout and fail fast behaviour