ReferenceCollectorVisitor (Teiid 15.0.0 API)

java.lang.Object
- org.teiid.query.sql.LanguageVisitor
- - org.teiid.query.sql.visitor.ReferenceCollectorVisitor

```
public class ReferenceCollectorVisitor
extends LanguageVisitor
```
This visitor class will traverse a language object tree and collect all references it finds.
The easiest way to use this visitor is to call the static methods which create the visitor (and possibly the collection), run the visitor, and return the collection. The public visit() methods should NOT be called directly.

Constructor Summary

Constructors
Constructor Description

ReferenceCollectorVisitor()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`List<Reference>`	`getReferences()`	Get the references collected by the visitor.
`static List<Reference>`	`getReferences(LanguageObject obj)`	Helper to quickly get the references from obj in a collection.
`void`	`visit(Reference obj)`	Visit a language object and collect symbols.

Methods inherited from class org.teiid.query.sql.LanguageVisitor
setAbort, shouldAbort, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

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

- Constructor Detail
  - ReferenceCollectorVisitor
```
public ReferenceCollectorVisitor()
```
- Method Detail
  - getReferences
```
public List<Reference> getReferences()
```
    Get the references collected by the visitor. This should best be called after the visitor has been run on the language object tree.
    
    Returns:
    
    Collection of ElementSymbol
  - visit
```
public void visit(Reference obj)
```
    Visit a language object and collect symbols. This method should NOT be called directly.
    
    Overrides:
    
    visit in class LanguageVisitor
    
    Parameters:
    
    obj - Language object
  - getReferences
```
public static List<Reference> getReferences(LanguageObject obj)
```
    Helper to quickly get the references from obj in a collection.
    
    Parameters:
    
    obj - Language object
    
    Returns:
    
    List of Reference