com.googlecode.n_orm

Annotation Type Incrementing

@Retention(value=RUNTIME)
 @Target(value=FIELD)
public @interface Incrementing

This annotation may be placed either on a number property, or on a Map of numbers. By default, the property is only allowed to increment over time. For maps, it's the element at a given key that must not decrement. Regarding storage, it's not the actual value that is sent when invoking PersistingElement.store(), but the difference. The situation is illustrated by the following example:
@Persisting public class MyClass {@Incrementing public int anInt;}

MyClass mc1 = new MyClass(); mc1.anInt = 3; mc1.store();
MyClass mc2 = new MyClass(); mc2.anInt = 2; mc2.store();
MyClass mc3 = new MyClass(); mc3.activate(); assert mc3.anInt == 5;

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
Incrementing.Mode	mode Whether the incrementing property is allowed to increment or decrement over time.

Element Detail

mode

public abstract Incrementing.Mode mode

Whether the incrementing property is allowed to increment or decrement over time. For non free modes, a IncrementException is thrown if constraint set by mode is not enforced. As there is no mean to state a default value, Incrementing.Mode.IncrementOnly properties must be positive and Incrementing.Mode.IncrementOnly must be negative.

Default:

com.googlecode.n_orm.Incrementing.Mode.IncrementOnly