KeyColumn (druid-processing 28.0.1 API)

java.lang.Object
- org.apache.druid.frame.key.KeyColumn

```
public class KeyColumn
extends Object
```
Represents a component of a hash or sorting key.

Constructor Summary

Constructors
Constructor Description

KeyColumn(String columnName, KeyOrder order)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`columnName()`
`boolean`	`equals(Object o)`
`int`	`hashCode()`
`KeyOrder`	`order()`
`String`	`toString()`

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

Constructor Detail

KeyColumn

public KeyColumn(String columnName,
                 KeyOrder order)

Method Detail

columnName
```
public String columnName()
```

order
```
public KeyOrder order()
```

equals
```
public boolean equals(Object o)
```
Overrides:

equals in class Object

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

hashCode in class Object

toString
```
public String toString()
```
Overrides:

toString in class Object