KeyColumn (OpenJPA Parent POM 4.0.0 API)

@Target({METHOD,FIELD})
@Retention(RUNTIME)
public @interface KeyColumn

Map key column.

Since:: 0.4.0, 1.1.0
Author:: Abe White

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`java.lang.String`	`columnDefinition`
`boolean`	`insertable`
`int`	`length`
`java.lang.String`	`name`
`boolean`	`nullable`
`int`	`precision`
`int`	`scale`
`boolean`	`unique`
`boolean`	`updatable`

- Element Detail
  - name
```
java.lang.String name
```
    Default:
    
    ""
- - unique
```
boolean unique
```
    Default:
    
    false
- - nullable
```
boolean nullable
```
    Default:
    
    true
- - insertable
```
boolean insertable
```
    Default:
    
    true
- - updatable
```
boolean updatable
```
    Default:
    
    true
- - columnDefinition
```
java.lang.String columnDefinition
```
    Default:
    
    ""
- - length
```
int length
```
    Default:
    
    255
- - precision
```
int precision
```
    Default:
    
    0
- - scale
```
int scale
```
    Default:
    
    0