adding context variable to a snippet

[eschwegs]

I'm trying to use the issnippet dsRequest.addToTemplate parameter to add text derived in a server side SQLDataSource.executeFetch(...) directly to another template context. I have found examples where issnippet is used to add txt to a ds.xml operation binding but am struggling extending this to other template contexts. Can this be done?

i.e. In this example, $moreStuff is not getting evaluated.

In my SQLDataSource.executeFetch(...) method:

dsrequest.addToTemplateContext("moreStuff", " AND PK in (1,2,3) ");

String stringCreatedElseWhere = "JOIN MyTable $moreStuff";
dsrequest.addToTemplateContext("additionalJoins", stringCreatedElseWhere ,  true);

in the ds.xml file:

<tableClause>
$defaultTableClause $rawValue.additionalJoins
</tableClause>

[Isomorphic]

It's just $additionalJoins (no $rawValue prefix).