protected LogicsheetFilter getLogicsheetFilter() 
{
        return new XSPExpressionFilter(this);
}

Return the filter to preprocess logicsheets expanding {#expr} to xsp:attribute and xsp:expr elements.

 protected AbstractXMLPipe getPreprocessFilter(String filename,
    AbstractXMLPipe filter,
    ProgrammingLanguage language) 
{
        PreProcessFilter prefilter = new PreProcessFilter(filter, filename, language, this);
        prefilter.enableLogging(getLogger());
        return prefilter;
}

Prepare the input source for logicsheet processing and code generation with a preprocess filter. The return XMLFilter object is the first filter on the transformer chain.

 public String getRootElement() 
{
        return "page";
}

Returns the root element for a valid XSP page: page element!