GetObjectsByPropertyValue (Activity)
Revision as of 14:37, 29 July 2013 by JKN (Talk | contribs) (moved Activity GetObjectsByPropertyValue to GetObjectsByPropertyValue (Activity))
| Get Objects By Property Value | |
|---|---|
| Name | GetObjectsByPropertyValue |
| Purpose | Query obejcts by a property value |
| Category | Object Primitives |
| Returns | The result of the query |
| Version | 2.1.15+ |
The GetObjectsByPropertyValue queries object instances by comparing a named property to a given value.
Contents
Arguments
| Argument | Type | Direction | Purpose |
|---|---|---|---|
| MetaClass | MetaClass | In | The MetaClass to query |
| PropertyName | String | In | The MetaProperty to use for comparison |
| Operator | QuerySearchItemOperator | In | The compare method, valid operators are:
|
| PropertyValue | Object | In | The value to compare against |
| Index | Integer | In | The index if an indexed value is to be compared; set to -1 for regular value |
| FirstMatch | BaseClass | Out | The first object the query returned |
| Result | List<BaseClass> | Out | The result of the query |
Usage
This activity is used to find UBIK® instances during the execution of a workflow, by comparing a named property to a given value. Technically this activity creates a query for a single property on the fly and executes it.
Example
Load the MetaClass named PUMP and find all instances which have a POWER greater than 4 kilowatts:
| Argument | Value |
|---|---|
| MetaClass | UBIKObject.Environment _ .GetSystemMetaClass(SystemObjects.METACLASS) _ .AllInstances("PUMP") |
| PropertyName | "POWER" |
| Operator | QuerySearchItemOperator.GreaterThan |
| PropertyValue | 4 |
| Index | -1 |
