VaadinConfigurable (DellRoad Stuff Vaadin 7.x Classes 2.5.10 API)

```
@Retention(RUNTIME)
@Target(TYPE)
@Documented
@Inherited
public @interface VaadinConfigurable
```
Indicates that the class is a candidate for configuration using the VaadinConfigurableAspect aspect.
Analogous to Spring's @Configurable annotation, but causes beans to be autowired into the Spring application context associated with the current VaadinSession (aka "Vaadin application") by SpringVaadinSessionListener instead of the Spring application context associated with the servlet context.
For an extra safety check, consider setting ifSessionNotLocked() where appropriate.
For the this annotation to function properly, @VaadinConfigurable classes must be woven (either at build time or runtime) using the AspectJ compiler with the VaadinConfigurableAspect aspect (included in the dellroad-stuff JAR file), and the SpringVaadinServlet must be used.

See Also:

org.dellroad.stuff.vaadin7, SpringVaadinServlet, SpringVaadinSessionListener, Example Code on GitHub

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`Autowire`	`autowire`	Whether and how to automatically autowire dependencies.
`boolean`	`dependencyCheck`	Whether to enable dependency checking.
`ErrorAction`	`ifSessionNotLocked`	What to do when we discover that the `VaadinSession` is not locked when the annotated bean is constructed.
`boolean`	`preConstruction`	Whether to inject dependencies prior to constructor execution.
`String`	`value`	Configuration bean definition template name, if any.

- Element Detail
  - value
```
String value
```
    Configuration bean definition template name, if any.
    
    Returns:
    
    bean definition template name, or empty string for none
    
    Default:
    
    ""
- - autowire
```
Autowire autowire
```
    Whether and how to automatically autowire dependencies.
    
    Returns:
    
    true to autowire
    
    Default:
    
    org.springframework.beans.factory.annotation.Autowire.NO
- - dependencyCheck
```
boolean dependencyCheck
```
    Whether to enable dependency checking.
    
    Returns:
    
    true for dependency checking
    
    Default:
    
    false
- - preConstruction
```
boolean preConstruction
```
    Whether to inject dependencies prior to constructor execution.
    
    Returns:
    
    true for pre-construction dependency injection
    
    Default:
    
    false
- - ifSessionNotLocked
```
ErrorAction ifSessionNotLocked
```
    What to do when we discover that the VaadinSession is not locked when the annotated bean is constructed. For beans that are (or will interact with) Vaadin widgets, containers, etc., this typically indicates a programming error. In such cases, this property configures what to do, if anything.
    
    Returns:
    
    action to take if session is not locked
    
    See Also:
    
    VaadinSession.getLockInstance()
    
    Default:
    
    org.dellroad.stuff.java.ErrorAction.EXCEPTION