RexUtil.FixNullabilityShuttle (Apache Calcite API)

java.lang.Object
- org.apache.calcite.rex.RexShuttle
- - org.apache.calcite.rex.RexUtil.FixNullabilityShuttle

All Implemented Interfaces:

RexVisitor<RexNode>

Enclosing class:

RexUtil
```
public static class RexUtil.FixNullabilityShuttle
extends RexShuttle
```
Shuttle that fixes up an expression to match changes in nullability of input fields.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  private RexBuilder rexBuilder
  
  private java.util.List<RelDataType> typeList
- Constructor Summary
  
  Constructors
  Constructor Description
  
  FixNullabilityShuttle(RexBuilder rexBuilder, java.util.List<RelDataType> typeList)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  RexNode visitInputRef(RexInputRef ref)
  - Methods inherited from class org.apache.calcite.rex.RexShuttle
    apply, apply, apply, mutate, visitArray, visitCall, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitFieldCollations, visitList, visitList, visitLiteral, visitLocalRef, visitOver, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef, visitWindow
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

typeList

private final java.util.List<RelDataType> typeList

rexBuilder
```
private final RexBuilder rexBuilder
```

Constructor Detail

FixNullabilityShuttle

public FixNullabilityShuttle(RexBuilder rexBuilder,
                             java.util.List<RelDataType> typeList)

Method Detail
- visitInputRef
```
public RexNode visitInputRef(RexInputRef ref)
```
  Specified by:
  
  visitInputRef in interface RexVisitor<RexNode>
  
  Overrides:
  
  visitInputRef in class RexShuttle