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icon	false
title	What is it for?

AQ_Aggregate_Update is used for updating an already created (=stored) aggregate

Creating and updating aggregates

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Name	Direction	Description	Type	Occurrence	Required
AggregateType	Input	Select the aggregate you want to update. This is a list of the aggregates definitions.	Aggregate	Single valued	trueYes
AggregateId	Input	The attribute that holds the ID of the aggregate you want to update.	Integer	Single valued	trueYes
CreateNewVersion	Input	Specifies whether the update creates a new version (true) or overwrites the existing version (false).	Boolean	Single valued	trueYes
VersionIDOutput	BiDirectional	The attribute on which you want to store the version Id of the update.	Attribute	Single valued	falseNo
TargetInsance	Input	The instance on which the Id of the version that is to be updated will be stored in the attribute mentioned in VersionIDOutput.	Expression resulting in an attribute	Single valued	falseNo
StoreInstances	Input	The starting point instance(s) for storing.	Expression(s) resulting in instance(s)	Multi valued	falseNo

User-set vs system-set

When updating an aggregate, only values that are user-set are stored, all system-set values are not stored. The data of the aggregate is stored in a xml blob.

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Below an example is given for an update service with versioning.

Aggregate definition

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Entity Relationship Diagram (ERD) Image Added	Service call definition Image Added
Aggregate definition Image Added		ER diagram Image Removed	Service definition Image Removed