Extension (DataNucleus Jakarta Persistence API plugin 6.0.1-SNAPSHOT API)

@Target({TYPE,FIELD,METHOD})
@Retention(RUNTIME)
@Repeatable(Extensions.class)
public @interface Extension

DataNucleus Extension to Jakarta Persistence.

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  String key
  The key for the extension.
  
  String value
  The value for the extension.
- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  String vendorName
  Vendor that the extension applies to.

- Element Detail
  - key
```
String key
```
    The key for the extension.
    
    Returns:
    
    The extension key
- - value
```
String value
```
    The value for the extension.
    
    Returns:
    
    Value for the extension
- - vendorName
```
String vendorName
```
    Vendor that the extension applies to. Provided for compatibility with JDO.
    
    Returns:
    
    The name of the vendor (DataNucleus).
    
    Default:
    
    "datanucleus"