Annotation Interface ListKey
Marks an element as being part of a list item key. All list items must have at least one key
(but a synthetic key will be generated if not declared).
This annotation is only used if the interface in which it appears is part of a List in a parent Configuration Object.
For example, the following is a valid use of the ListKey annotation which defines two keys
(name and identifier) for a list item (which makes the combination name-identifier unique between items of the list).
interface HasListItems extends Configuration {
List<ListItemElement> elements();
interface ListItemElement {
@ListKey
String name();
@ListKey
String identifier();
int value();
}
}