File Storage Framework

The File Storage Framework: Allows storing files using the back-end of the Document Library. By using this framework you won’t have to worry yourself about clustering or backups since that will already be taken care of for the Document Library itself. This framework is used, for example, by the wiki and the message boards of Liferay to store attached files in pages and posts respectively. You can check the source code of these two portlets for great real-life examples of how to use the framework.