@Override
  @Deprecated
  public TypeInfo[] getParameters() {
    TypeInfo[] result = new TypeInfo[parameters.length];
    for (int ii = 0; ii < parameters.length; ++ii) {
      result[ii] =
        TypeInfoUtils.getTypeInfoFromObjectInspector(parameters[ii]);
    }
    return result;
  }
A simple implementation of <pre>GenericUDAFParameterInfo</pre>.
ql/src/java/org/apache/hadoop/hive/ql/udf/generic/SimpleGenericUDAFParameterInfo.java