Nullable types

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Imported from previous forum

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Hello All,

Could you please clarify following question:
There is ‘Nullable types’ mentioned at FAST specification. Does ‘Nullability’ relate to the “Transfer encoding” topic only or FAST support NonNullable and Nullable types (Int32, Int63, String, etc)?

With all regards, Sergey.

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Nullability is a concept at the transfer encoding level. In a template, it is expressed through the presence attribute:

This field will use a non-nullable representation at the transfer encoding level:

and this field will use a nullable representation:

/David

Could you please clarify following question: There is ‘Nullable types’
mentioned at FAST specification. Does ‘Nullability’ relate to the
“Transfer encoding” topic only or FAST support NonNullable and Nullable
types (Int32, Int63, String, etc)?