RexMultisetUtil.RexCallMultisetOperatorCounter (Apache Calcite API)

java.lang.Object
- org.apache.calcite.rex.RexVisitorImpl<java.lang.Void>
- - org.apache.calcite.rex.RexMultisetUtil.RexCallMultisetOperatorCounter

All Implemented Interfaces:

RexVisitor<java.lang.Void>

Enclosing class:

RexMultisetUtil
```
private static class RexMultisetUtil.RexCallMultisetOperatorCounter
extends RexVisitorImpl<java.lang.Void>
```
A RexShuttle that traverse all RexNode and counts total number of RexCalls traversed and number of multiset calls traversed.
totalCount ≥ multisetCount always holds true.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  (package private) int multisetCount
  
  (package private) int totalCount
  - Fields inherited from class org.apache.calcite.rex.RexVisitorImpl
    deep
- Constructor Summary
  
  Constructors
  Constructor Description
  
  RexCallMultisetOperatorCounter()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  (package private) void reset()
  
  java.lang.Void visitCall(RexCall call)
  - Methods inherited from class org.apache.calcite.rex.RexVisitorImpl
    visitArrayAnd, visitArrayOr, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitInputRef, visitLiteral, visitLocalRef, visitOver, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - totalCount
```
int totalCount
```
  - multisetCount
```
int multisetCount
```
- Constructor Detail
  - RexCallMultisetOperatorCounter
```
RexCallMultisetOperatorCounter()
```
- Method Detail
  - reset
```
void reset()
```
  - visitCall
```
public java.lang.Void visitCall(RexCall call)
```
    Specified by:
    
    visitCall in interface RexVisitor<java.lang.Void>
    
    Overrides:
    
    visitCall in class RexVisitorImpl<java.lang.Void>