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Cast Object

Last modified: August 2, 2022

This activity can only be used in microflows, not in nanoflows.

1 Introduction

The Cast Object activity can be used in a microflow after an inheritance split to change the type of object from the generalized object type to the specialized object type of the path out of the inheritance split.

To read more about specialization and generalization, see Entities.

For the properties that all the activities share (for example, a caption), see Microflow Element Common Properties. This page only describes the properties specific to the action.

2 Output Properties

2.1 Variable Name

This is the variable name for the result of the cast. It can be used by all activities that follow this activity.

3 Example

For example, there are three specializations of the Question object. Only an object of the specialized type MultipleChoiceQuestion needs to have some special actions performed on it. These will be done in a sub-microflow which has as the input type MultipleChoiceQuestion. Since an object of the type Question cannot get passed to the sub-microflow, the object first needs to be cast to the object type MultipleChoiceQuestion.