PaginationTagSupport.java 文件源码

@Override
public void doTag() throws JspException, IOException
{
  JspTag parent = SimpleTagSupport.findAncestorWithClass(this, TableTagSupport.class);

  if (parent != null)
  {
    TableTagSupport tag = (TableTagSupport) parent;
    Table table = (Table) tag.getColumnar();

    // Generate a new Pagination data-structure using the supplied query object
    Pagination pagination = new Pagination(tag.getQuery(), isAsynchronous());

    // Loop over all of the pages in the pagination
    while (pagination.hasNext())
    {
      // Update the current Page to generate
      current = pagination.next();

      if (var != null)
      {
        this.getJspContext().setAttribute(var, current);
      }

      // Generate the pre HTML, marker, and post HTML for the current page
      if (this.getJspBody() != null)
      {
        this.getJspBody().invoke(current.getWriter());
      }
    }

    // Add the pagination structure to the table
    table.setPagination(pagination);
  }
}