com.googlecode.n_orm

Annotation Type KeyMap

@Retention(value=RUNTIME)
 @Target(value=PARAMETER)
public @interface KeyMap

Annotation used for mapping constructor's parameters to key values. Its is often necessary to build a new object for its key values, for example when searching or activating a property whose type is an object. To do so, by default, the default constructor is used, then values for is keys are set. It is also possible to define the constructor to be used by explicitly stating which parameter correspond to which key. For instance:

  @Persisting class Storable {
         @Key(order=1) public String key1;
         @Key(order=2) public String key2;
 
        public Storable ( @KeyMap("key2") String val2,  @KeyMap("key1") String val1) {
                this.key1 = val1;
                this.key2 = val2;
        }
 }