Allow for customization of Sorting Anchors

DisplayTag provides the ability to override the output of the anchors used for pagination, but not sorting. I need this to be able to use the DisplayTag.

Here is the code to implement it:


Add the following to TableProperties.java:

   /**
     * property <code>sort.th.link</code>.
     */
    public static final String PROPERTY_STRING_SORT_TH_LINK = "sort.th.link"; //$NON-NLS-1$


  /**
    * Getter for the <code>PROPERTY_STRING_SORT_TH_LINK</code> property.
    * @return String
    */
   public String getSortThLink()
   {
       return getProperty(PROPERTY_STRING_SORT_TH_LINK);
   }

Add the following to TableTag.properties:

   sort.th.link=<a href="{0}">{1}</a>



In TableTag.java, in the writeTableHeader method, replaced this code:

   // creates the link for sorting
   Anchor anchor = new Anchor(getSortingHref(headerCell), header);

   // append to buffer
   header = anchor.toString();

with:

   // create Object[] including the HREF for the sort and the header text
   Object[] objects = {getSortingHref(headerCell).toString(), header};

   // get sort th link
   String sortedLinkFormat = this.properties.getSortThLink();

   // merge the final result
   header = MessageFormat.format(sortedLinkFormat, objects);


The docs would need to change to reflect the additional configuration parameter.

   Name: sort.th.link
   Default: <a href="{0}">{1}</a>
   Description: Link to get you back to this page. Displayed in the column th for sorting. {0}: Page Url; {1}: Column Title