void performAssignmentDelegation(Delegation assignmentDelegation, Assignable assignable, ExecutionContext executionContext) throws Exception {
// instantiate the assignment handler
AssignmentHandler assignmentHandler = (AssignmentHandler) assignmentDelegation.instantiate();
// invoke the assignment handler
assignmentHandler.assign(assignable, executionContext);
}
void performAssignmentActorIdExpr(String actorIdExpression, Assignable assignable, ExecutionContext executionContext) {
Object result = null;
String actorId = null;