Package adams.core

Class ListHelper

  • public class ListHelper
extends Object
    Helper class for lists.
    Version:
    $Revision$
    Author:
    FracPete (fracpete at waikato dot ac dot nz)

    • Constructor Summary

      Constructors 
      Constructor Description
      ListHelper()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean canMoveDown​(List list, int[] indices)
      checks whether the selected items can be moved down.
      static boolean canMoveUp​(List list, int[] indices)
      checks whether the selected items can be moved up.
      static int[] moveBottom​(List list, int[] indices)
      moves the selected items to the end.
      static int[] moveDown​(List list, int[] indices)
      moves the selected items down by 1.
      protected static int[] moveItems​(List list, int[] indices, int moveby, boolean up)
      moves the selected items by a certain amount of items in a given direction.
      static int[] moveTop​(List list, int[] indices)
      moves the selected items to the top.
      static int[] moveUp​(List list, int[] indices)
      moves the selected items up by 1.
      protected static void swap​(List list, int firstIndex, int secondIndex)
      Swaps the two rows.

    • Constructor Detail

      • ListHelper

        public ListHelper()

    • Method Detail

      • swap

        protected static void swap​(List list,
                           int firstIndex,
                           int secondIndex)
        Swaps the two rows.
        Parameters:
        firstIndex - the index of the first row
        secondIndex - the index of the second row

      • moveItems

        protected static int[] moveItems​(List list,
                                 int[] indices,
                                 int moveby,
                                 boolean up)
        moves the selected items by a certain amount of items in a given direction.
        Parameters:
        indices - the indices to move
        moveby - the number of items to move by
        up - if true then items are moved up, otherwise down
        Returns:
        the updated selected indices

      • moveUp

        public static int[] moveUp​(List list,
                           int[] indices)
        moves the selected items up by 1.
        Parameters:
        indices - the indices of the rows to move
        Returns:
        the updated indices of the selected rows

      • moveDown

        public static int[] moveDown​(List list,
                             int[] indices)
        moves the selected items down by 1.
        Parameters:
        indices - the indices of the rows to move
        Returns:
        the updated indices of the selected rows

      • moveTop

        public static int[] moveTop​(List list,
                            int[] indices)
        moves the selected items to the top.
        Parameters:
        indices - the indices of the rows to move
        Returns:
        the updated indices of the selected rows

      • moveBottom

        public static int[] moveBottom​(List list,
                               int[] indices)
        moves the selected items to the end.
        Parameters:
        indices - the indices of the rows to move
        Returns:
        the updated indices of the selected rows

      • canMoveUp

        public static boolean canMoveUp​(List list,
                                int[] indices)
        checks whether the selected items can be moved up.
        Parameters:
        indices - the indices of the rows to move
        Returns:
        true if the selected items can be moved

      • canMoveDown

        public static boolean canMoveDown​(List list,
                                  int[] indices)
        checks whether the selected items can be moved down.
        Parameters:
        indices - the indices of the rows to move
        Returns:
        true if the selected items can be moved