Difference between revisions of "Activity:CreateInstance (Activity)"
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! Argument !! Type !! Direction !! Purpose | ! Argument !! Type !! Direction !! Purpose | ||
|- align="left" | |- align="left" | ||
| − | | MetaClass|| BaseClass || In || The MetaClass to create the instance from | + | | MetaClass|| [[BaseClass]] || In || The MetaClass to create the instance from |
|- align="left" | |- align="left" | ||
| − | | Result|| RelationalObject|| Out || The created instance, null if creation failed | + | | Result|| [[RelationalObject]]|| Out || The created instance, null if creation failed |
|} | |} | ||
Revision as of 09:42, 7 January 2015
| Create Instance | |
|---|---|
| Name | CreateInstance |
| Purpose | Create a new instance of a MetaClass |
| Category | Object Primitives |
| Returns | The created instance |
| Version | 2.1+ |
The CreateInstance Activity creates a new Instance of a specified MetaClass.
Contents
Arguments
| Argument | Type | Direction | Purpose |
|---|---|---|---|
| MetaClass | BaseClass | In | The MetaClass to create the instance from |
| Result | RelationalObject | Out | The created instance, null if creation failed |
Usage
This activity is used to create new UBIK® objects during the execution of a workflow. Since it only needs to know the MetaClass to create objects from, it can be used to create regular content objects as well as properties or anything else.
 | This activity does not automatically save changes. If you want to persist the newly created instance, you need i.e. a subsequent SaveObject activity! |
Example
Load the MetaClass named PUMP, and create a new instance from it:
| Argument | Value |
|---|---|
| MetaClass | UBIKObject.Environment _ .GetSystemMetaClass(UBIK.Kernel.SystemObjects.METACLASS) _ .AllInstances("PUMP") |
