Package edu.tufts.hrilab.action.annotations

Annotation Interface Effect

@Retention(RUNTIME) @Target(METHOD) @Repeatable(EffectsContainer.class) public @interface Effect
Annotation used to specify an effect of an action. Can be repeated. The predicates in the effect array will be added to the StateMachine/Belief. A predicate can be specified as observable, by adding it to the observable array. In this case, it will first be observed that the effect does indeed apply by calling an observer, e.g. Vision. If the predicate cannot be observed, it will not be added to the StateMachine/Belief and the corresponding action will fail. An effect can retract a predicate by placing it withing a not() operator, e.g. not(on(table,mug)) will retract on(table,mug). Examples: - Standard effect. The free variables (?locA, ?locB) will be bound before assertion/retraction. \ @Effect(effect={"at(car,?locB), not(at(car,?locA))"}, type = EffectType.SUCCESS) - Same as above but at(car,?locB) has to be observed before assertion, e.g. through Vision. \ @Effect(effect={"at(car,?locB), not(at(car,?locA))"}, type = EffectType.SUCCESS, observable={"at(car,?locB)"})

  • Required Element Summary

    Required Elements
    Modifier and Type
    Required Element
    Description
    String[]
    effect
     
    EffectType
    type
     

  • Optional Element Summary

    Optional Elements
    Modifier and Type
    Optional Element
    Description
    String[]
    observable