VarNameCollector (Eclipse RDF4J 4.2.4)

java.lang.Object
- org.eclipse.rdf4j.query.algebra.helpers.AbstractSimpleQueryModelVisitor<RuntimeException>
- - org.eclipse.rdf4j.query.algebra.helpers.collectors.VarNameCollector

All Implemented Interfaces:

QueryModelVisitor<RuntimeException>
```
public class VarNameCollector
extends AbstractSimpleQueryModelVisitor<RuntimeException>
```
A QueryModelVisitor that collects the names of (non-constant) variables that are used in a query model.

Constructor Summary

Constructors
Constructor Description

VarNameCollector()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Set<String>`	`getVarNames()`
`void`	`meet(Var var)`
`static Set<String>`	`process(QueryModelNode node)`

Methods inherited from class org.eclipse.rdf4j.query.algebra.helpers.AbstractSimpleQueryModelVisitor
meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meetBinaryTupleOperator, meetBinaryValueOperator, meetCompareSubQueryValueOperator, meetNAryValueOperator, meetOther, meetSubQueryValueOperator, meetUnaryTupleOperator, meetUnaryValueOperator, meetUnsupported, meetUpdateExpr

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - VarNameCollector
```
public VarNameCollector()
```
- Method Detail
  - process
```
public static Set<String> process(QueryModelNode node)
```
  - getVarNames
```
public Set<String> getVarNames()
```
  - meet
```
public void meet(Var var)
```
    Specified by:
    
    meet in interface QueryModelVisitor<RuntimeException>
    
    Overrides:
    
    meet in class AbstractSimpleQueryModelVisitor<RuntimeException>