@Override
  public GenericUDAFEvaluator getEvaluator(GenericUDAFParameterInfo info) throws SemanticException {
    return new GenericUDAFBloomFilterEvaluator();
  }
Generic UDF to generate Bloom Filter
ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFBloomFilter.java