The KeyProperty annotation must be applied at field or method level.
This annotation should be used with Generic types, if the key property of the key element needs to be specified.
Parameters
Parameter
Required
Default
Description
value
no
id
The key property value.
Examples
// The key property for User objects within the users collection is the <code>userName</code> attribute.
@KeyProperty( value = "userName" )
protected List<User> users = null;