Workflow variables are declared within a workflow definition. They contain references to
resources or other values. There are single-valued variables
(atomic variables) and list-valued variables
(aggregation variables) of a given type.
Workflow variables are the main connection between the workflow server and the
Content Management Server. By assigning
resources to workflow variables, these resources may easily be accessed in later tasks of
the same workflow instance. Workflow variables provide the context in which a task has to be
carried out. If a workflow variable is defined in a task, it can be accessed by another task
using the dot syntax name-of-task.name-of-variable.
Each Variable is typed. A variable can only be bound to a value of the corresponding type or subtype. There is a fixed amount of types for workflow variables:
basic value types: Boolean, blob, Integer, String, Date, Timer
CoreMedia resource related types: Content[Folder, Document], ContentType
CoreMedia-user-manager-related types: Group, User
If a variable should be shown or edited in the client GUI, it must be mentioned in a client view (see Section 4.1.4.2, “User Tasks”). Please note, that for aggregation variables there exists only an editor for resource variables. So by default, you can only edit resource aggregation variables in the variable view.
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