See: Description
| Interface | Description | 
|---|---|
| JmsIO.MessageMapper<T> | An interface used by  JmsIO.Readfor converting each jmsMessageinto an element
 of the resultingPCollection. | 
| Class | Description | 
|---|---|
| JmsCheckpointMark | Checkpoint for an unbounded JmsIO.Read. | 
| JmsIO | An unbounded source for JMS destinations (queues or topics). | 
| JmsIO.Read<T> | A  PTransformto read from a JMS destination. | 
| JmsIO.UnboundedJmsSource<T> | An unbounded JMS source. | 
| JmsIO.Write | A  PTransformto write to a JMS queue. | 
| JmsRecord | JmsRecord contains message payload of the record as well as metadata (JMS headers and
 properties). |