The streamMaps element of the input map file contains one or more streamMap elements.
adapter                                      (required, limit one)
  |----publication                           (required, limit one)
  |----streamMaps                            (required, limit one)
  |      '----streamMap                      (required)
  |             |----dataField               (required)
  |             |----hiResTimestampField     (optional)
  |             |----imageField              (required for L2 data)
  |             |----itemName                (required, limit one)
  |             |----itemStale               (optional)
  |             |----marketByOrderKeyField   (required)
  |             |----marketByPriceKeyField   (required)
  |             |----marketMakerKeyField     (required)
  |             |----nullField               (optional)
  |             |----respTypeNumField        (optional)
  |             |----sequenceNumber          (optional)
  |             |----serviceName             (optional)
  |             '----updateNumber            (optional)
  |----rfa                                   (required, limit one)
  '----itemLists                             (required, limit one)
         '----itemList                       (required)
                '----item                    (optional)
adapter
| Name | Requirement | 
|---|---|
| streamMap | One required, two or more supported | 
None
Each streamMap instance in this section maps incoming FIDs from the Reuters adapter to columns in an Event Stream Processor source stream.
A stream must have a streamMap.
<streamMaps>
        <streamMap name="marketByOrderStream">
                <itemName key="true"/>
                <!-- serviceName / -->
                <sequenceNumber />
                <itemStale/>
                <dataField name="BID"/>
                <dataField name="ASK"/>
                <dataField name="TRDPRC_1"/>
                <dataField name="ACVOL_1"/>
                <dateTimeField timeName="TIMACT" dateName="ACTIV_DATE"/>
        </streamMap>
</streamMaps>