Reference: ETV Step Properties

Common Tab

Property	XML Attribute Name	Description
Step Id	id	The unique ID of the etv mediation step within the assembly.
Input	input	Specifies where the etv mediation step obtains data as input. There are 5 possible values: message : the entire message, including rootpart and attachments. soapbody : the content of the SOAP body from the rootpart of the message. Only applicable when the input contains a SOAP message. attachment : a MIME attachment within the message. You must specify the attachment index. rootpart : the content of the root part of a MIME message. If the message isn't MIME, the entire message is selected. variable : use a named variable from the MediationContext .
Output	output	Specifies where the etv mediation step directs the output. There are 5 possible values: message : the entire message, including rootpart and attachments. This value creates a new message, effectively removing any attachments. soapbody : the content of the SOAP body from the rootpart of the message. attachment : a MIME attachment to the message. You must specify the attachment index. rootpart : the content of the root part of a MIME message, or if the message isn't MIME, the message itself. This value preserves any attachments on the original message. variable : save the output as a named variable in the MediationContext .

Property	XML Attribute Name	Description
Description	description	A description of the etv mediation step that displays in the consolidated log. You can use this feature to describe the step's function and the data on which it is operating.
Execute When	execute-when	A condition that determines whether the etv step executes.
Append Messages	append-messages	Specifies whether new messages replace existing messages or are appended to them.
Message Property	message-property	The name of the MediationContext property that stores messages created by the etv mediation step.