public class UsedVariableTracker extends Object implements VariableReplacedListener
| Type Params | Return Type | Name and description | 
|---|---|---|
 | 
                            public Set<String> | 
                            getUsedVariableNames() | 
                        
 | 
                            public void | 
                            variableReplaced(VariableExpression oldVar, VariableExpression newVar) |