DefaultValue (ObjectBox Java 3.1.3 API)

```
@Retention(CLASS)
@Target(FIELD)
public @interface DefaultValue
```
Defines the Java code of the default value to use for a property, when getting an existing entity and the database value for the property is null.
Currently only @DefaultValue("") is supported.

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  java.lang.String value

- Element Detail
  - value
```
java.lang.String value
```