engine_template.rb in openwferu-0.9.12

- old
+ new

@@ -6,13 +6,10 @@
 #
 # setting up an OpenWFEru engine, step by step
 
 require 'openwfe/engine/engine'
 require 'openwfe/engine/file_persisted_engine'
-require 'openwfe/expool/history'
-require 'openwfe/expool/journal'
-require 'openwfe/listeners/listeners'
 require 'openwfe/participants/participants'
 
 
 #
 # === the ENGINE itself
@@ -60,28 +57,35 @@
     #
     # Hit CTRL-D to get out of the IRB console.
 
 # -- process history
 
+#require 'openwfe/expool/history'
+
 #engine.init_service("history", InMemoryHistory)
     #
-    # keeps all process history in an arry in memory
+    # keeps all process history in an array in memory
     # use only for test purposes !
 
 #engine.init_service("history", FileHistory)
     #
     # dumps all the process history in a file name "history.log"
     # in the work directory
 
 # -- process journaling
 
+#require 'openwfe/expool/journal'
 #engine.init_service("journal", Journal)
     #
     # activates 'journaling',
     #
     # see http://openwferu.rubyforge.org/journal.html
     #
+    # Journaling has a cost in terms of performace.
+    # Journaling should be used only in case you might want to migrate
+    # [segments of] running processes.
+    #
 #engine.application_context[:keep_journals] = true
     #
     # if set to true, the journal of terminated processes will be kept
     # (but moved by default to ./work/journal/done/)
 
@@ -90,9 +94,11 @@
 # === some LISTENERS
 #
 # listeners 'receive' incoming workitems (InFlowWorkItem coming back from
 # participants or LaunchItem requesting the launch of a particular flow)
 #
+
+#require 'openwfe/listeners/listeners'
 
 #sl = OpenWFE::SocketListener.new(
 #    "socket_listener", @engine.application_context, 7008)
 #engine.add_workitem_listener(sl)
     #