690: def investigation
691: result = "------------------------------\n"
692: result << "Investigating #{name}\n"
693: result << "class: #{self.class}\n"
694: result << "task needed: #{needed?}\n"
695: result << "timestamp: #{timestamp}\n"
696: result << "pre-requisites: \n"
697: prereqs = @prerequisites.collect {|name| application[name]}
698: prereqs.sort! {|a,b| a.timestamp <=> b.timestamp}
699: prereqs.each do |p|
700: result << "--#{p.name} (#{p.timestamp})\n"
701: end
702: latest_prereq = @prerequisites.collect{|n| application[n].timestamp}.max
703: result << "latest-prerequisite time: #{latest_prereq}\n"
704: result << "................................\n\n"
705: return result
706: end