Question
· Aug 18

Is there a way to drop/remove an inherited setting (from the SETTINGS class parameter) in an interoperability business host?

#Business Operation #Interoperability #InterSystems IRIS

Given:
class Foo.Bar extends Ens.BusinessOperation
{
Parameter SETTINGS = "Whatever:Basic";
}

class Foo.Baz extends Foo.Bar

I want to somehow drop "Whatever" as a setting from Foo.Baz. How can I do this?

Product version: IRIS 2025.2
Discussion (3)2
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Timothy Leavitt · Aug 18

Found the answer:
class Foo.Baz extends Foo.Bar
{
Parameter SETTINGS = "-Whatever";
}

Thought I'd seen that syntax once, but was looking at a class further down the hierarchy and also needed to recompile it to have the change in the intermediate class take effect.

This query was helpful to identify settings behavior in built-in interop classes:

select parent,_default from %Dictionary.ParameterDefinition where name = 'SETTINGS'

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Jeffrey Drumm · Aug 18

Include the setting in the SETTINGS string, but prefix it with a dash (-) character:

Parameter SETTINGS = "-Whatever,DSN:Basic:selector?context={Ens.ContextSearch/DSNs},..."

EDIT: Was apparently typing that while you were reading the documentation 😁

And for competeness' sake, the actual documentation:

Adding and Removing Settings

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