RexVariable (Apache Calcite API)

java.lang.Object
- org.apache.calcite.rex.RexNode
- - org.apache.calcite.rex.RexVariable

Direct Known Subclasses:

RexCorrelVariable, RexDynamicParam, RexSlot
```
public abstract class RexVariable
extends RexNode
```
A row-expression which references a field.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected java.lang.String name
  
  protected RelDataType type
  - Fields inherited from class org.apache.calcite.rex.RexNode
    digest
- Constructor Summary
  
  Constructors
  Modifier Constructor Description
  
  protected RexVariable(java.lang.String name, RelDataType type)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  java.lang.String getName()
  Returns the name of this variable.
  
  RelDataType getType()
  - Methods inherited from class org.apache.calcite.rex.RexNode
    accept, accept, equals, getKind, hashCode, isA, isA, isAlwaysFalse, isAlwaysTrue, toString
  - Methods inherited from class java.lang.Object
    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

name
```
protected final java.lang.String name
```

type
```
protected final RelDataType type
```

Constructor Detail

RexVariable

protected RexVariable(java.lang.String name,
                      RelDataType type)

Method Detail
- getType
```
public RelDataType getType()
```
  Specified by:
  
  getType in class RexNode
- getName
```
public java.lang.String getName()
```
  Returns the name of this variable.