8.3.1 Variables and Scopes 3.1.4

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(Quick Reference) # 8.3.1 Variables and Scopes - Reference Documentation Authors: Graeme Rocher, Peter Ledbrook, Marc Palmer, Jeff Brown, Luke Daley, Burt Beckwith, Lari Hotari Version: 3.1.4 ## 8.3.1 Variables and Scopes Within the scope of a tag library there are a number of pre-defined variables including: `actionName` - The currently executing action name `controllerName` - The currently executing controller name `flash` - The flash object `grailsApplication` - The GrailsApplication instance `out` - The response writer for writing to the output stream `pageScope` - A reference to the pageScope object used for GSP rendering (i.e. the binding) `params` - The params object for retrieving request parameters `pluginContextPath` - The context path to the plugin that contains the tag library `request` - The HttpServletRequest instance `response` - The HttpServletResponse instance `servletContext` - The javax.servlet.ServletContext instance `session` - The HttpSession instance | Quick Reference (hide)