Examples of ptolemy.data.expr.Variable.validate()

• ptolemy.data.expr.Variable.validate()
  If this variable is not lazy (the default) then evaluate the expression contained in this variable, and notify any value dependents. If those are not lazy, then they too will be evaluated. Also, if the variable is not lazy, then notify its container, if there is one, by calling its attributeChanged() method.

  If this variable is lazy, then mark this variable and any of its value dependents as needing evaluation and for any value dependents that are not lazy, evaluate them. Note that if there are no value dependents, or if they are all lazy, then this will not result in evaluation of this variable, and hence will not ensure that the expression giving its value is valid. Call getToken() or getType() to accomplish that. @return The current list of value listeners, which are evaluatedas a consequence of this call to validate(). @exception IllegalActionException If this variable or avariable dependent on this variable cannot be evaluated (and is not lazy) and the model error handler throws an exception. Also thrown if the change is not acceptable to the container.