Interface OrderAction<T,​M extends OrderAction<T,​M>>

  • Type Parameters:
    T - The entity type for the List of entities contained in the OrderAction's orderList
    M - The extension implementing the abstract operations of this OrderAction, this will be important for chaining convenience as it returns the specific implementation rather than a mask of this class. It allows us to implement chaining operations in this class instead of having to implement it in every inheriting class!
    All Superinterfaces:
    RestAction<Void>
    All Known Subinterfaces:
    CategoryOrderAction, ChannelOrderAction, RoleOrderAction

    public interface OrderAction<T,​M extends OrderAction<T,​M>>
    extends RestAction<Void>
    Extension of RestAction - Type: Void that allows to modify the order of entities provided as an ArrayList.
    This action contains a List or entities for the specified type T which can be moved within the bounds but not removed, nor can any new entities be added.
    Since:
    3.0
    • Method Detail

      • setCheck

        @Nonnull
        M setCheck​(@Nullable
                   BooleanSupplier checks)
        Description copied from interface: RestAction
        Sets the last-second checks before finally executing the http request in the queue.
        If the provided supplier evaluates to false or throws an exception this will not be finished. When an exception is thrown from the supplier it will be provided to the failure callback.
        Specified by:
        setCheck in interface RestAction<T>
        Parameters:
        checks - The checks to run before executing the request, or null to run no checks
        Returns:
        The current RestAction for chaining convenience
        See Also:
        RestAction.getCheck(), RestAction.addCheck(BooleanSupplier)
      • timeout

        @Nonnull
        M timeout​(long timeout,
                  @Nonnull
                  TimeUnit unit)
        Description copied from interface: RestAction
        Timeout for this RestAction instance.
        If the request doesn't get executed within the timeout it will fail.

        When a RestAction times out, it will fail with a TimeoutException. This is the same as deadline(System.currentTimeMillis() + unit.toMillis(timeout)).

        Example

        
         action.timeout(10, TimeUnit.SECONDS) // 10 seconds from now
               .queueAfter(20, SECONDS); // request will not be executed within deadline and timeout immediately after 20 seconds
         
        Specified by:
        timeout in interface RestAction<T>
        Parameters:
        timeout - The timeout to use
        unit - Unit for the timeout value
        Returns:
        The same RestAction instance with the applied timeout
        See Also:
        RestAction.setDefaultTimeout(long, TimeUnit)
      • deadline

        @Nonnull
        M deadline​(long timestamp)
        Description copied from interface: RestAction
        Similar to RestAction.timeout(long, TimeUnit) but schedules a deadline at which the request has to be completed.
        If the deadline is reached, the request will fail with a TimeoutException.

        This does not mean that the request will immediately timeout when the deadline is reached. JDA will check the deadline right before executing the request or within intervals in a worker thread. This only means the request will timeout if the deadline has passed.

        Example

        
         action.deadline(System.currentTimeMillis() + 10000) // 10 seconds from now
               .queueAfter(20, SECONDS); // request will not be executed within deadline and timeout immediately after 20 seconds
         
        Specified by:
        deadline in interface RestAction<T>
        Parameters:
        timestamp - Millisecond timestamp at which the request will timeout
        Returns:
        The same RestAction with the applied deadline
        See Also:
        RestAction.timeout(long, TimeUnit), RestAction.setDefaultTimeout(long, TimeUnit)
      • isAscendingOrder

        boolean isAscendingOrder()
        Whether this instance uses ascending order, from the lowest position to the highest.
        Returns:
        True, if this uses ascending order
      • getCurrentOrder

        @Nonnull
        List<T> getCurrentOrder()
        Immutable List representing the currently selected order of entities in this OrderAction instance
        Returns:
        Immutable List representing the current order
      • selectPosition

        @Nonnull
        M selectPosition​(int selectedPosition)
        Selects a new current entity at the specified index
        This index is in correlation to the current order
        Parameters:
        selectedPosition - The index for the new position that will be in focus for all modification operations
        Returns:
        The current OrderAction sub-implementation instance
        Throws:
        IllegalArgumentException - If the provided position is out-of-bounds
        See Also:
        getSelectedPosition(), getSelectedEntity()
      • getSelectedPosition

        int getSelectedPosition()
        The currently selected position that is in focus for all modification operations of this OrderAction instance
        Returns:
        The currently selected index, or -1 if no position has been selected yet
      • moveUp

        @Nonnull
        M moveUp​(int amount)
        Moves the currently selected entity amount positions UP in order by pushing all entities down by one position.
        Parameters:
        amount - The amount of positions that should be moved
        Returns:
        The current OrderAction sub-implementation instance
        Throws:
        IllegalStateException - If no entity has been selected yet
        IllegalArgumentException - If the specified amount would cause the entity to go out-of-bounds
        See Also:
        moveTo(int)
      • moveDown

        @Nonnull
        M moveDown​(int amount)
        Moves the currently selected entity amount positions DOWN in order by pushing all entities up by one position.
        Parameters:
        amount - The amount of positions that should be moved
        Returns:
        The current OrderAction sub-implementation instance
        Throws:
        IllegalStateException - If no entity has been selected yet
        IllegalArgumentException - If the specified amount would cause the entity to go out-of-bounds
        See Also:
        moveTo(int)
      • moveTo

        @Nonnull
        M moveTo​(int position)
        Moves the currently selected entity to the specified position (0 based index). All entities are moved in the direction of the left hole to fill the gap.
        Parameters:
        position - The new not-negative position for the currently selected entity
        Returns:
        The current OrderAction sub-implementation instance
        Throws:
        IllegalStateException - If no entity has been selected yet
        IllegalArgumentException - If the specified position is out-of-bounds
        See Also:
        moveDown(int), moveUp(int)
      • swapPosition

        @Nonnull
        M swapPosition​(int swapPosition)
        Swaps the currently selected entity with the entity located at the specified position. No other entities are affected by this operation.
        Parameters:
        swapPosition - 0 based index of target position
        Returns:
        The current OrderAction sub-implementation instance
        Throws:
        IllegalStateException - If no entity has been selected yet
        IllegalArgumentException - If the specified position is out-of-bounds
      • swapPosition

        @Nonnull
        M swapPosition​(@Nonnull
                       T swapEntity)
        Swaps the currently selected entity with the specified entity. No other entities are affected by this operation.
        Parameters:
        swapEntity - Target entity to switch positions with
        Returns:
        The current OrderAction sub-implementation instance
        Throws:
        IllegalStateException - If no entity has been selected yet
        IllegalArgumentException - If the specified position is out-of-bounds, or if the target entity is null or not available in this order action implementation
        See Also:
        swapPosition(int)