VariableUsagePopper (Apache Jena ARQ)

java.lang.Object
- org.apache.jena.sparql.algebra.OpVisitorBase
- - org.apache.jena.sparql.algebra.optimize.VariableUsageVisitor
  - - org.apache.jena.sparql.algebra.optimize.VariableUsagePopper

All Implemented Interfaces:

OpVisitor
```
public class VariableUsagePopper
extends VariableUsageVisitor
```
An after visitor for tracking variable usage

- Constructor Summary
  
  Constructors
  Constructor Description
  
  VariableUsagePopper(VariableUsageTracker tracker)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  void visit(OpProject opProject)
  - Methods inherited from class org.apache.jena.sparql.algebra.optimize.VariableUsageVisitor
    visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit
  - Methods inherited from class org.apache.jena.sparql.algebra.OpVisitorBase
    visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit
  - Methods inherited from class java.lang.Object
    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  - Methods inherited from interface org.apache.jena.sparql.algebra.OpVisitor
    visit

- Constructor Detail
  - VariableUsagePopper
```
public VariableUsagePopper(VariableUsageTracker tracker)
```
- Method Detail
  - visit
```
public void visit(OpProject opProject)
```
    Specified by:
    
    visit in interface OpVisitor
    
    Overrides:
    
    visit in class VariableUsageVisitor