OneToOne

```
@Target({METHOD,FIELD})
@Retention(RUNTIME)
public @interface OneToOne
```
Version:

$Rev: 467742 $ $Date: 2006-10-25 21:30:38 +0200 (Wed, 25 Oct 2006) $

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`CascadeType[]`	`cascade`
`FetchType`	`fetch`
`java.lang.String`	`mappedBy`
`boolean`	`optional`
`java.lang.Class`	`targetEntity`

- Element Detail
  - targetEntity
```
java.lang.Class targetEntity
```
    Default:
    
    void.class
- - cascade
```
CascadeType[] cascade
```
    Default:
    
    {}
- - fetch
```
FetchType fetch
```
    Default:
    
    javax.persistence.FetchType.EAGER
- - optional
```
boolean optional
```
    Default:
    
    true
- - mappedBy
```
java.lang.String mappedBy
```
    Default:
    
    ""