When you specify the name of a chain RIC, Reuters translates it to a list of individual RICs. Chain RICs usually contain all of the RICs from a single market or for a single index instrument, such as the S&P 500 or the Russell 2000.
<streamMap name="chainMap" chain="1" > <itemName /> <dataField name="REF_COUNT" /> <dataField name="NEXT_LR" /> <dataField name="PREF_LINK" /> <dataField name="LINK_1" /> <dataField name="LINK_2" /> <dataField name="LINK_3" /> <dataField name="LINK_4" /> <dataField name="LINK_5" /> <dataField name="LINK_6" /> <dataField name="LINK_7" /> <dataField name="LINK_8" /> <dataField name="LINK_9" /> <dataField name="LINK_10" /> <dataField name="LINK_11" /> <dataField name="LINK_12" /> <dataField name="LINK_13" /> <dataField name="LINK_14" /> <dataField name="LONGNEXTLR" /> <dataField name="LONGPREVLR" /> <dataField name="LONGLINK1" /> <dataField name="LONGLINK2" /> <dataField name="LONGLINK3" /> <dataField name="LONGLINK4" /> <dataField name="LONGLINK5" /> <dataField name="LONGLINK6" /> <dataField name="LONGLINK7" /> <dataField name="LONGLINK8" /> <dataField name="LONGLINK9" /> <dataField name="LONGLINK10" /> <dataField name="LONGLINK11" /> <dataField name="LONGLINK12" /> <dataField name="LONGLINK13" /> <dataField name="LONGLINK14" /> </streamMap>
and enter their names in the itemList section.
<itemList stream="stream1" service="IDN_RDF" > <item name="0#.DJI" /> <!-- The Dow Jones Index --> <item name="0#SIAC" /> <!-- The entities of SIAC --> </itemList>
For more details about chains, look at the example in chain.example.map.xml in the $ESP_REUTERS_HOME/examples directory. For more information about Reuters chain RICs, see the Reuters Venue Guide for your chosen venue, which is available from Reuters.