code: public void setCasId(String v) {
      if (ProcessingStep_Type.featOkTst && ((ProcessingStep_Type)jcasType).casFeat_casId == null)
        jcasType.jcas.throwFeatMissing("casId", "edu.cmu.lti.oaqa.framework.types.ProcessingStep");
      jcasType.ll_cas.ll_setStringValue(addr, ((ProcessingStep_Type)jcasType).casFeatCode_casId, v);}
docs: setter for casId - sets
  @generated