Inheritance Relationships

Inheritance relationship provide that a concept inherits all the properties of another concept, similar to Java, where a subclass inherits all the properties of the superclass that it extends.

You can define a hierarchy of inheritance, where each concept in the hierarchy extends the concept above it. The relationship is defined by the Inherits From field in the concept resource editor. In Legacy ActiveSpaces cluster, the child concepts also inherit the indexes defined in the parent concepts.

Concepts that are related to each other directly or indirectly by inheritance cannot have distinct properties that share a common name. Therefore, the following restrictions apply:

• If two concepts are related by inheritance, you cannot create a new property in one with a name that already exists in the other.
• If two unrelated concepts have properties that share a name, you cannot create an inheritance relationship between the two concepts.

TIBCO BusinessEvents does not allow you to create an inheritance loop; for example, if Concept A inherits from Concept B, Concept B cannot inherit from Concept A. At runtime, a rule on a parent concept also affects all its child concepts. For example, suppose the concept Coupe inherits from the concept Car. A rule on Car is therefore also a rule on Coupe.