[midPoint] fire-and-forget action to update attribute in resource

[Pavol Mederly]

Hello Markus,

I'd prefer direct creation of the delta, avoiding cloning and diffing, like

1. If you know the resource (ResourceType), object class name, and 
shadow OID

Resource.of(...)
     .deltaFor(objectClassName)
     .item(ShadowType.F_ATTRIBUTES.append(attrName))
     .replace(value)
     .asObjectDelta(shadowOid);

Resource is in com.evolveum.midpoint.schema.util package.

(Or) 2. If you have the original shadow - which is probably your 
situation - I am sorry but we don't have nicer API for this in already 
released versions:

var objectDefinition = ShadowUtil.getResourceObjectDefinition(shadow)
var delta = PrismContext.get().deltaFor(ShadowType.class, new 
Resource.ResourceItemDefinitionResolver(objectDefinition))
                 .item(ShadowType.F_ATTRIBUTES.append(attrName))
                 .replace(value)
                 .asObjectDelta(shadowOid);

This second variant is not tested, but it should work.

Note that after 
https://github.com/Evolveum/midpoint/commit/177c011fdbc74b45615d103c1bd0451c29524ffc it 
could be written like this

var objectDefinition = ShadowUtil.getResourceObjectDefinition(shadow)
var delta = objectDefinition.deltaFor()
                 .item(ShadowType.F_ATTRIBUTES.append(attrName))
                 .replace(value)
                 .asObjectDelta(shadowOid);

Best regards,

-- 
Pavol Mederly
Interim Chief Product Officer
evolveum.com

On 09/02/2026 14:53, Markus Calmius via midPoint wrote:
> Hi Pavol,
>
> thank you for the pointer.
>
> It looks like it's working.
> Ended up doing it like this... not sure whether or not there are 
> better ways though
>
> shadowBefore = shadow.clone()
> shadowPrism = shadow.asPrismObject() ipath = 
> ItemPath.create(ShadowType.F_ATTRIBUTES, attrQname) 
> shadowPrism.findOrCreateProperty(ipath).addRealValue(setAttrValue) 
> delta = shadowBefore.asPrismObject().diff(shadowPrism) 
> midpoint.executeChanges(delta)
> Kind regards,
> Markus
> On Saturday, 7 February 2026 at 18:40, Pavol Mederly via midPoint 
> <midpoint at lists.evolveum.com> wrote:
>>
>> Hi Markus,
>>
>> certainly. All you need to do is to execute a change against a shadow 
>> object, modifying specified attribute directly. The property path to 
>> be used is composed from "attributes" and the attribute name, e.g. 
>> "attributes/dn".
>>
>> Best regards,
>>
>> --
>> Pavol Mederly
>> Interim Chief Product Officer
>> evolveum.com
>> On 23/01/2026 13:12, Markus Calmius via midPoint wrote:
>>> Hi,
>>> Is it possible to create a task or groovy script to modify a 
>>> particular attribute directly on a resource, in the same way as when 
>>> editing a user’s projection?
>>> Even without an outbound mapping, the attribute is updated on the 
>>> resource. I would like to do this via a task/script without defining 
>>> an outbound mapping, so that changes made by the resource are not 
>>> overwritten by midpoint during reconciliations.
>>>
>>> Kind regards,
>>>
>>> Markus
>>>
>>> _______________________________________________
>>> midPoint mailing list
>>> midPoint at lists.evolveum.com
>>> https://lists.evolveum.com/mailman/listinfo/midpoint
>
>
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