Uses of Package
org.apache.hadoop.hive.ql.udf.generic

Packages that use org.apache.hadoop.hive.ql.udf.generic

org.apache.hadoop.hive.ql.exec	Hive QL execution tasks, operators, functions and other handlers.
org.apache.hadoop.hive.ql.exec.vector.udf
org.apache.hadoop.hive.ql.optimizer.index
org.apache.hadoop.hive.ql.plan
org.apache.hadoop.hive.ql.plan.ptf
org.apache.hadoop.hive.ql.udf.generic	Standard toolkit and framework for generic User-defined functions.
org.apache.hadoop.hive.ql.udf.xml
org.apache.hadoop.hive.ql.util

Classes in org.apache.hadoop.hive.ql.udf.generic used by org.apache.hadoop.hive.ql.exec

GenericUDAFEvaluator
A Generic User-defined aggregation function (GenericUDAF) for the use with Hive.

GenericUDAFEvaluator.AggregationBuffer
Deprecated. use GenericUDAFEvaluator.AbstractAggregationBuffer instead

GenericUDAFResolver
Deprecated. Use GenericUDAFResolver2 instead.

GenericUDF
A Generic User-defined function (GenericUDF) for the use with Hive.

GenericUDTF
A Generic User-defined Table Generating Function (UDTF) Generates a variable number of output rows for a single input row.

Classes in org.apache.hadoop.hive.ql.udf.generic used by org.apache.hadoop.hive.ql.exec.vector.udf

GenericUDF.DeferredObject
A Defered Object allows us to do lazy-evaluation and short-circuiting.

Classes in org.apache.hadoop.hive.ql.udf.generic used by org.apache.hadoop.hive.ql.optimizer.index

GenericUDAFEvaluator
A Generic User-defined aggregation function (GenericUDAF) for the use with Hive.

Classes in org.apache.hadoop.hive.ql.udf.generic used by org.apache.hadoop.hive.ql.plan

GenericUDAFEvaluator
A Generic User-defined aggregation function (GenericUDAF) for the use with Hive.

GenericUDAFEvaluator.Mode
Mode.

GenericUDF
A Generic User-defined function (GenericUDF) for the use with Hive.

GenericUDTF
A Generic User-defined Table Generating Function (UDTF) Generates a variable number of output rows for a single input row.

Classes in org.apache.hadoop.hive.ql.udf.generic used by org.apache.hadoop.hive.ql.plan.ptf

GenericUDAFEvaluator
A Generic User-defined aggregation function (GenericUDAF) for the use with Hive.

Classes in org.apache.hadoop.hive.ql.udf.generic used by org.apache.hadoop.hive.ql.udf.generic

AbstractGenericUDAFResolver
An abstract class to help facilitate existing implementations of GenericUDAFResolver to migrate towards the newly introduced interface GenericUDAFResolver2.

AbstractGenericUDFEWAHBitmapBop
An abstract class for a UDF that performs a binary operation between two EWAH-compressed bitmaps.

AbstractGenericUDFReflect
common class for reflective UDFs

Collector
Collector gets data from a source.

DecimalNumDistinctValueEstimator

DoubleNumDistinctValueEstimator

GenericUDAFAverage.AbstractGenericUDAFAverageEvaluator

GenericUDAFComputeStats.GenericUDAFDecimalStatsEvaluator.DecimalStatsAgg

GenericUDAFComputeStats.GenericUDAFDoubleStatsEvaluator.DoubleStatsAgg

GenericUDAFComputeStats.GenericUDAFLongStatsEvaluator.LongStatsAgg

GenericUDAFComputeStats.GenericUDAFStringStatsEvaluator.StringStatsAgg

GenericUDAFCovariance
Compute the covariance covar_pop(x, y), using the following one-pass method (ref.

GenericUDAFCovariance.GenericUDAFCovarianceEvaluator
Evaluate the variance using the algorithm described in http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance, presumably by Pébay, Philippe (2008), in "Formulas for Robust, One-Pass Parallel Computation of Covariances and Arbitrary-Order Statistical Moments", Technical Report SAND2008-6212, Sandia National Laboratories, http://infoserve.sandia.gov/sand_doc/2008/086212.pdf Incremental: n : mx_n = mx_(n-1) + [x_n - mx_(n-1)]/n : my_n = my_(n-1) + [y_n - my_(n-1)]/n : c_n = c_(n-1) + (x_n - mx_(n-1))*(y_n - my_n) : Merge: c_X = c_A + c_B + (mx_A - mx_B)*(my_A - my_B)*n_A*n_B/n_X This one-pass algorithm is stable.

GenericUDAFEvaluator
A Generic User-defined aggregation function (GenericUDAF) for the use with Hive.

GenericUDAFEvaluator.AbstractAggregationBuffer

GenericUDAFEvaluator.AggregationBuffer
Deprecated. use GenericUDAFEvaluator.AbstractAggregationBuffer instead

GenericUDAFEvaluator.AggregationType

GenericUDAFEvaluator.Mode
Mode.

GenericUDAFFirstValue.GenericUDAFFirstValueEvaluator

GenericUDAFLastValue.GenericUDAFLastValueEvaluator

GenericUDAFLeadLag
abstract class for Lead & lag UDAFs GenericUDAFLeadLag.

GenericUDAFLeadLag.GenericUDAFLeadLagEvaluator

GenericUDAFParameterInfo
A callback interface used in conjunction with GenericUDAFResolver2 interface that allows for a more extensible and flexible means of discovering the parameter types provided for UDAF invocation.

GenericUDAFPercentileApprox.GenericUDAFPercentileApproxEvaluator
Construct a histogram using the algorithm described by Ben-Haim and Tom-Tov, and then use it to compute an approximate percentile value.

GenericUDAFRank

GenericUDAFRank.GenericUDAFRankEvaluator

GenericUDAFResolver
Deprecated. Use GenericUDAFResolver2 instead.

GenericUDAFResolver2
This interface extends the GenericUDAFResolver interface and provides more flexibility in terms of discovering the parameter types supplied to the UDAF.

GenericUDAFVariance
Compute the variance.

GenericUDAFVariance.GenericUDAFVarianceEvaluator
Evaluate the variance using the algorithm described by Chan, Golub, and LeVeque in "Algorithms for computing the sample variance: analysis and recommendations" The American Statistician, 37 (1983) pp.

GenericUDF
A Generic User-defined function (GenericUDF) for the use with Hive.

GenericUDF.DeferredObject
A Defered Object allows us to do lazy-evaluation and short-circuiting.

GenericUDFBaseCompare
GenericUDF Base Class for operations.

GenericUDFBaseCompare.CompareType

GenericUDFBaseNumeric
GenericUDF Base Class for operations.

GenericUDFBasePad

GenericUDFBaseTrim

GenericUDFBaseUnary

GenericUDFFloorCeilBase

GenericUDFFromUtcTimestamp

GenericUDFLeadLag

GenericUDFOPEqual
GenericUDF Class for operation EQUAL.

GenericUDFToUnixTimeStamp
deterministic version of UDFUnixTimeStamp.

GenericUDFUtils.ReturnObjectInspectorResolver
This class helps to find the return ObjectInspector for a GenericUDF.

GenericUDTF
A Generic User-defined Table Generating Function (UDTF) Generates a variable number of output rows for a single input row.

LongNumDistinctValueEstimator

NumDistinctValueEstimator

StringNumDistinctValueEstimator

Classes in org.apache.hadoop.hive.ql.udf.generic used by org.apache.hadoop.hive.ql.udf.xml

GenericUDF
A Generic User-defined function (GenericUDF) for the use with Hive.

GenericUDF.DeferredObject
A Defered Object allows us to do lazy-evaluation and short-circuiting.

Classes in org.apache.hadoop.hive.ql.udf.generic used by org.apache.hadoop.hive.ql.util

NumDistinctValueEstimator

NumericHistogram
A generic, re-usable histogram class that supports partial aggregations.