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FAST Protocol
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Re: Fast encoding with multiple templates
Dale Wilson / Object Computing, Inc
24 Apr 2009 4:19PM ET Satish,
The answer to your questions can be find in section "6.3.1 Dictionaries and Previous Values" in the FAST Specification 1.x.1. You need to understand this standard if you are planning to implement the FAST protocol.
Dale
> Dale Wilson & Rolf Anderson,
>
> Thanks for your effort to clarify my doubts. I am first time using
> the multiple template Ids for the encoding/decoding, I am having some
> doubts. Let me explain the above discussed with a example.,
>
> Template 1 This template has the following different fields Field1 -
> Symbol Field2 - Price1 Field3 - Size1 Field4 - Price2 Field5 - Size2
> Field6 - Price3 Field7 - Size3 Field8 - Price4 Field8 - Size4
>
> Template 2 This template has the following different fields. Field1 -
> Symbol Field2 - Price1 Field3 - Price2 Field4 - Price3 Field5 - Price4
>
> All above field operators are COPY_CODE
>
> Here I have the following questions in mind If the template Id is
> global, what about the rest of the fields? Whether they will be global
> acros the two templates, if field name is same? What about the PMAP ? is
> it common for both the templates?. If the field Price1 of template 1 is
> same as Price1 of template 2, shouldnt it be sent again on the wire?
> Whether Price3 across templates occupy the same slot in the PMAP array ?
>
> My initial understanding was that the values of the fields are
> maintained in the context of templates( Template1 and Template2). I
> assumed same field across two templates ex, price3 will occupy
> different slots in PMAP in both templates.
>
> Please throw some light on this.
>
> Thanks Satish
Re: Fast encoding with multiple templates
Dale Wilson / Object Computing, Inc 24 Apr 2009 4:19PM ET
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