The actual act method.
Parameters: redirector - The Redirector in charge Parameters: resolver - The SourceResolver in charge Parameters: objectModel - The Map with object of thecalling environment which can be usedto select values this controller may need(ie Request, Response). Parameters: source - A source String to the Action Parameters: parameters - The Parameters for this invocation Map The returned Map object withsitemap substitution values which can be usedin subsequent elements attributes like src=using a xpath like expression: src="mydir/{myval}/foo"If the return value is null the processing insidethe element of the sitemap willbe skipped. exception: Exception - Indicates something is totally wrong