JavaRelImplementor (Apache Calcite API)

java.lang.Object
- org.apache.calcite.adapter.enumerable.JavaRelImplementor

All Implemented Interfaces:

RelImplementor

Direct Known Subclasses:

EnumerableRelImplementor, SparkRel.Implementor
```
public abstract class JavaRelImplementor
extends java.lang.Object
implements RelImplementor
```
Abstract base class for implementations of RelImplementor that generate java code.

Field Summary

Fields
Modifier and Type Field Description

private RexBuilder rexBuilder

Constructor Summary

Constructors
Constructor Description

JavaRelImplementor(RexBuilder rexBuilder)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`RexBuilder`	`getRexBuilder()`
`ParameterExpression`	`getRootExpression()`	Returns the expression used to access `DataContext`.
`JavaTypeFactory`	`getTypeFactory()`

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

Methods inherited from interface org.apache.calcite.plan.RelImplementor
getConformance

Field Detail
- rexBuilder
```
private final RexBuilder rexBuilder
```

Constructor Detail

JavaRelImplementor

public JavaRelImplementor(RexBuilder rexBuilder)

Method Detail
- getRexBuilder
```
public RexBuilder getRexBuilder()
```
- getTypeFactory
```
public JavaTypeFactory getTypeFactory()
```
- getRootExpression
```
public ParameterExpression getRootExpression()
```
  Returns the expression used to access DataContext.
  
  Returns:
  
  expression used to access DataContext.