ElasticsearchRules.ElasticsearchProjectRule (Apache Calcite API)

java.lang.Object
- org.apache.calcite.plan.RelOptRule
- - org.apache.calcite.rel.convert.ConverterRule
  - - org.apache.calcite.adapter.elasticsearch.ElasticsearchRules.ElasticsearchConverterRule
    - - org.apache.calcite.adapter.elasticsearch.ElasticsearchRules.ElasticsearchProjectRule

Enclosing class:: ElasticsearchRules

private static class ElasticsearchRules.ElasticsearchProjectRule
extends ElasticsearchRules.ElasticsearchConverterRule

Rule to convert a LogicalProject to an ElasticsearchProject.

Field Summary

Fields
Modifier and Type Field Description

private static ElasticsearchRules.ElasticsearchProjectRule INSTANCE
- Fields inherited from class org.apache.calcite.adapter.elasticsearch.ElasticsearchRules.ElasticsearchConverterRule
  out
- Fields inherited from class org.apache.calcite.plan.RelOptRule
  description, operands, relBuilderFactory

Constructor Summary

Constructors
Modifier Constructor Description

private ElasticsearchProjectRule()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`RelNode`	`convert(RelNode relNode)`	Converts a relational expression to the target trait(s) of this rule.

Methods inherited from class org.apache.calcite.rel.convert.ConverterRule
getInTrait, getOutConvention, getOutTrait, getTraitDef, isGuaranteed, onMatch

Methods inherited from class org.apache.calcite.plan.RelOptRule
any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, hashCode, matches, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered

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

- Field Detail
  - INSTANCE
```
private static final ElasticsearchRules.ElasticsearchProjectRule INSTANCE
```
- Constructor Detail
  - ElasticsearchProjectRule
```
private ElasticsearchProjectRule()
```
- Method Detail
  - convert
```
public RelNode convert(RelNode relNode)
```
    Description copied from class: ConverterRule
    
    Converts a relational expression to the target trait(s) of this rule.
    Returns null if conversion is not possible.
    
    Specified by:
    
    convert in class ConverterRule