| Decorator | Representation of a Decorator. | code | html |
| DecoratorMapper | The DecoratorMapper is responsible for determining which com.opensymphony.module.sitemesh.Decorator should be used for a com.opensymphony.module.sitemesh.Page . | code | html |
| HTMLPage | Extension of com.opensymphony.module.sitemesh.Page providing access to HTML data. | code | html |
| Page | The Page object wraps the contents of the original (undecorated) page. | code | html |
| PageParser | The PageParser is responsible for parsing the page data into an appropriate com.opensymphony.module.sitemesh.Page object. | code | html |
| PageParserSelector | code | html | |
| RequestConstants | A set of static constants of Strings to be used as ServletRequest attribute keys to represent various objects passed between pages. | code | html |
| Factory | Factory responsible for creating appropriate instances of implementations. | code | html |
| Config | Common interface to ServletConfig and FilterConfig (since javax.servlet.Config was removed from 2.3 spec). | code | html |