RelDecorrelator.CorRef (Apache Calcite API)

java.lang.Object
- org.apache.calcite.sql2rel.RelDecorrelator.CorRef

All Implemented Interfaces:

java.lang.Comparable<RelDecorrelator.CorRef>

Enclosing class:

RelDecorrelator
```
static class RelDecorrelator.CorRef
extends java.lang.Object
implements java.lang.Comparable<RelDecorrelator.CorRef>
```
A unique reference to a correlation field.
For instance, if a RelNode references emp.name multiple times, it would result in multiple CorRef objects that differ just in uniqueKey.

Field Summary

Fields
Modifier and Type Field Description

CorrelationId corr

int field

int uniqueKey

Constructor Summary

Constructors
Constructor Description

CorRef(CorrelationId corr, int field, int uniqueKey)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`compareTo(RelDecorrelator.CorRef o)`
`RelDecorrelator.CorDef`	`def()`
`boolean`	`equals(java.lang.Object o)`
`int`	`hashCode()`
`java.lang.String`	`toString()`

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

Field Detail

uniqueKey
```
public final int uniqueKey
```

corr
```
public final CorrelationId corr
```

field
```
public final int field
```

Constructor Detail

CorRef

CorRef(CorrelationId corr,
       int field,
       int uniqueKey)

Method Detail

toString
```
public java.lang.String toString()
```
Overrides:

toString in class java.lang.Object

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:: equals in class java.lang.Object

compareTo

public int compareTo(@Nonnull
                     RelDecorrelator.CorRef o)

Specified by:: compareTo in interface java.lang.Comparable<RelDecorrelator.CorRef>

def
```
public RelDecorrelator.CorDef def()
```