code: public String getFirstIds(int i) {
      if (Cooccurrence_Type.featOkTst && ((Cooccurrence_Type)jcasType).casFeat_firstIds == null)
        jcasType.jcas.throwFeatMissing("firstIds", "ch.epfl.bbp.uima.types.Cooccurrence");
      jcasType.jcas.checkArrayBounds(jcasType.ll_cas.ll_getRefValue(addr, ((Cooccurrence_Type)jcasType).casFeatCode_firstIds), i);
      return jcasType.ll_cas.ll_getStringArrayValue(jcasType.ll_cas.ll_getRefValue(addr, ((Cooccurrence_Type)jcasType).casFeatCode_firstIds), i);}
docs: indexed getter for firstIds - gets an indexed value - A list of string ids to identify the first occurrence
  @generated
  @param i index in the array to get
  @return value of the element at index i