code: public void setPolarity(String v) {
      if (Event_Type.featOkTst && ((Event_Type)jcasType).casFeat_polarity == null)
        jcasType.jcas.throwFeatMissing("polarity", "de.julielab.jules.types.ace.Event");
      jcasType.ll_cas.ll_setStringValue(addr, ((Event_Type)jcasType).casFeatCode_polarity, v);}
docs: setter for polarity - sets
  @generated
  @param v value to set into the feature