Configuring Arbortext Publishing Engine > Understanding Queuing on the Arbortext PE server > Configuring a Queue Manager > The Arbortext Publishing Engine Queue Manager
  
The Arbortext Publishing Engine Queue Manager
One ArbortextQueueManager is defined in e3config.xml, with its class set to com.arbortext.e3.QueueManager and ID default-qm. The Arbortext Queue Manager examines each request looking for the HTTP query parameter queue=yes, and takes one of the following actions:
declines to queue a request if the request does not specify the parameter queue=yes.
returns an error if a request includes queue=yes but no queue can accept the transaction.
generates a response page for the client containing the transaction ID if queue=yes and a queue accepts the transaction.
The response page will be in either HTML or XML format. The query parameter response-format can specify xml or html. If response-format=xmlis present, it will return an XML response. If it’s not specified, the default is HTML.