subscription

The subscription element contains one or more instances of the stream element; enabling you to configure the adapter to receive data from one or more streams.

Summary

adapter                       (required, limit one)
  |----rfa                               (required, limit one)
  '----subscriptions                     (required, limit one)
         '----subscription               (required)
                '----stream              (required)
                       |----name         (required, limit one)
                       |----stale        (optional)
                       |----field        (required)
                       '----constant     (optional)

The output adapter map file can contain two or more subscription sections. At runtime, the publishing mechanism for each subscription section is instantiated on a separate thread, which provides scalability.

Parent

subscriptions

Children

Name	Requirement
stream	One or more

Attributes

Name	Description	Requirement
name	A name for this subscription that appears in updates published on RMDS and in log file entries	Required

Notes

None

Example

<subscriptions>
    <subscription name="subscription1" >
        <stream name="stream1" >
            <name column="0"/>
            <field column="4" name="BID"/>
            <field column="5" name="ASK"/>
            <field column="6" name="TRDPRC_1"/>
            <field column="7" name="ACVOL_1"/>
            <constant name="PROD_PERM" value="1"/>
        </stream>
    </subscription>
</subscriptions>

This example configures the adapter to publish some columns from stream1 on Event Stream Processor using the name subscription1.