Default implementation of the CommandTriggerProvider interface that
 determines the trigger for a command based on the first parameter type
 of the execute method or (if the execute method does not have parameters)
 based on the first parameter type of the constructor.
 
 
 public function getTriggerType(commandType:ClassInfo):ClassInfo
	 
	 Returns the trigger message for the specified command 
	 type or null if it cannot be determined.
	 
	 
 Parameters 
 | commandType:ClassInfo — the type of the target command
	  | 
Returns | ClassInfo — the trigger message type for the specified command
	  | 
Mon Feb 6 2012, 01:04 AM +01:00