code: public void setElementId(int v) {
      if (DocumentElement_Type.featOkTst && ((DocumentElement_Type)jcasType).casFeat_ElementId == null)
        jcasType.jcas.throwFeatMissing("ElementId", "ch.epfl.bbp.uima.types.DocumentElement");
      jcasType.ll_cas.ll_setIntValue(addr, ((DocumentElement_Type)jcasType).casFeatCode_ElementId, v);}
docs: setter for ElementId - sets
  @generated
  @param v value to set into the feature