Class DataToItemsSketchUDAF<T>

  • Type Parameters:
    T - type of item
    All Implemented Interfaces:
    org.apache.hadoop.hive.ql.udf.generic.GenericUDAFResolver, org.apache.hadoop.hive.ql.udf.generic.GenericUDAFResolver2
    Direct Known Subclasses:
    DataToStringsSketchUDAF

    public abstract class DataToItemsSketchUDAF<T>
    extends org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver
    This is a generic implementation to be specialized in subclasses
    • Constructor Detail

      • DataToItemsSketchUDAF

        public DataToItemsSketchUDAF()
    • Method Detail

      • getEvaluator

        public org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator getEvaluator​(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo info)
                                                                                throws org.apache.hadoop.hive.ql.parse.SemanticException
        Specified by:
        getEvaluator in interface org.apache.hadoop.hive.ql.udf.generic.GenericUDAFResolver2
        Overrides:
        getEvaluator in class org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver
        Throws:
        org.apache.hadoop.hive.ql.parse.SemanticException
      • createEvaluator

        public abstract org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator createEvaluator()