Specifying the POPSPEC Parameter for Array Properties
For a property that is an array of literals or objects, you can use the following variation:
POPSPEC="basicspec:MaxNo:KeySpecMethod"
Where:
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basicspec is one of the basic variations shown earlier. Leave basicspec empty if the property is a array of objects.
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MaxNo is the maximum number of items in the array. The default is 10.
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KeySpecMethod is the specification of the method that generates values to use for the keys of the array. The default is String(), which means that InterSystems IRIS invokes the String() method of %PopulateUtilsOpens in a new tab.
The following examples show arrays of several types of data and different kinds of keys:
Property Tix As array of %Integer(POPSPEC="Integer():20:Date()");
Property Reviews As array of Review(POPSPEC=":3:Date()");
Property Actors As array of Actor(POPSPEC=":15:Name()");
The Tix property has its data generated using the Integer() method of the PopulateUtils class; its keys are generated using the Date() method of the PopulateUtils class. The Reviews property has no specified method, which results in automatically generated references, and has its keys also generated using the Date() method. The Actors property has no specified method, which results in automatically generated references, and has its keys generated using the Name() method of the PopulateUtils class.
