id

Required. Defines the chain-id. This attribute is used during the XML combination process, and identifies the chain to execute.

transaction

Provides transaction demarcation for the chain. For information on the supported transaction demarcation types, refer to the Repository Guide. The default value is TX_SUPPORTS.

Note: If you are creating REST MVC Service calls it is important to note that Profile and Order-related form handlers require that the transaction be TX_SUPPORTS and not TX_REQUIRED, as the transaction must be initiated in the form handler and not be defined prior.

actors

An actor-chain can have one or more actors that include input and/or output elements.