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@Retention(value=RUNTIME)
@Target(value={FIELD,TYPE})
public @interface SinceAn annotation that indicates the version number since a member or a type has been present. This annotation is useful to manage versioning of your Json classes for a web-service.
 This annotation has no effect unless you build Gson with a
 GsonBuilder and invoke
 GsonBuilder.setVersion(double) method.
 
Here is an example of how this annotation is meant to be used:
 public class User {
   private String firstName;
   private String lastName;
   @Since(1.0) private String emailAddress;
   @Since(1.0) private String password;
   @Since(1.1) private Address address;
 }
 
 If you created Gson with new Gson(), the toJson() and fromJson()
 methods will use all the fields for serialization and deserialization. However, if you created
 Gson with Gson gson = new GsonBuilder().setVersion(1.0).create() then the
 toJson() and fromJson() methods of Gson will exclude the address field
 since it's version number is set to 1.1.
| Required Element Summary | |
|---|---|
|  double | valuethe value indicating a version number since this member or type has been present. | 
| Element Detail | 
|---|
public abstract double value
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