EMA C++ RDM Usage Guide : 9 Market Maker Domain : 9.2 Usage : 9.2.4 Market Maker Status Message
 
9.2.4 Market Maker Status Message
A Market Maker status message is encoded and sent by Open Message Model interactive provider and non-interactive provider applications. This message conveys state change information associated with an item stream.
 
NOTE: The provider should send the Name and ServiceName only in the first Refresh response message. However if MsgKeyInUpdates is set to true, then the Name and ServiceName must be provided for every Status response message.
 
Table 64: Market Maker Status Message  
COMPONENT
DESCRIPTION / VALUE
DomainType
Required. MMT_MARKET_MAKER = 9
State
Optional. Specifies current state information associated with the data and stream.
Indications
Optional.
ClearCache: true, indicates that the application should clear the cache.
QoS
Optional. Specifies the QoS at which the stream is provided.
ItemGroup
Optional. The provider can use this component to change the items’ ItemGroup.
PermissionData
Optional. Specifies new permissioning information associated with all of the stream’s contents.
extendedHeader
Not used.
ServiceName
Conditional. ServiceName is required if MsgKeyInUpdates was set to true. ServiceName specifies the name of the service that provides the data.
NOTE: The provider application should set either the ServiceName or ServiceId of the service, but not both.
ServiceId
Conditional. ServiceId is required if MsgKeyInUpdates was set to true. ServiceId specifies the ID of the service that provides the item.
NOTE: The provider application should set either the ServiceName or ServiceId of the service, but not both.
NameType
Conditional. NameType is required if MsgKeyInUpdates was set to true. NameType must match the name type in the item’s request message (typically INSTRUMENT_NAME_RIC = 1). If absent, NameType defaults to INSTRUMENT_NAME_RIC = 1.
Name
Conditional. Name is required if MsgKeyInUpdates was set to true. Name specifies the name of the item being provided.
Filter
Not used.
Identifier
Not used.
Attrib
Not used.
Payload
Not used.