001    package org.apache.tapestry5.grid;
002    
003    /**
004     * Identifies how a column within a {@link org.apache.tapestry5.grid.GridSortModel} is sorted.
005     */
006    public enum ColumnSort
007    {
008        /**
009         * A sort column and sorted in ascending order.
010         */
011        ASCENDING,
012    
013        /**
014         * A sort column, and sorted in descending order.
015         */
016        DESCENDING,
017    
018        /**
019         * Not a sort column.
020         */
021        UNSORTED
022    }