Version

```
@Target(TYPE)
@Retention(RUNTIME)
public @interface Version
```
Annotation for the versioning of the class. Corresponds to the xml element "version" of the "class" and "property" elements.

Since:

2.1

Version:

2.1

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`java.lang.String`	`column`	Name of the column for the version.
`Column[]`	`columns`	The column(s) making up the version.
`java.lang.String`	`customStrategy`	Custom strategy for versioning of objects of this class.
`Extension[]`	`extensions`	Vendor extensions.
`java.lang.String`	`indexed`	Whether the version column(s) is(are) indexed.
`VersionStrategy`	`strategy`	Strategy for versioning of objects of this class.

- Element Detail
  - strategy
```
VersionStrategy strategy
```
    Strategy for versioning of objects of this class.
    
    Returns:
    
    the strategy for versioning objects of this class
    
    Default:
    
    javax.jdo.annotations.VersionStrategy.UNSPECIFIED
- - customStrategy
```
java.lang.String customStrategy
```
    Custom strategy for versioning of objects of this class. If customStrategy is non-empty, strategy must be UNSPECIFIED.
    
    Returns:
    
    the custom strategy for versioning objects of this class
    
    Default:
    
    ""
- - column
```
java.lang.String column
```
    Name of the column for the version.
    
    Returns:
    
    the name of the column for the version
    
    Default:
    
    ""
- - indexed
```
java.lang.String indexed
```
    Whether the version column(s) is(are) indexed.
    
    Returns:
    
    whether the version column(s) is(are) indexed
    
    Default:
    
    ""
- - columns
```
Column[] columns
```
    The column(s) making up the version.
    
    Returns:
    
    the column(s) making up the version
    
    Default:
    
    {}
- - extensions
```
Extension[] extensions
```
    Vendor extensions.
    
    Returns:
    
    the vendor extensions
    
    Default:
    
    {}