Class Summary |
GenericUDAFAverage |
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GenericUDAFAverage.GenericUDAFAverageEvaluator |
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GenericUDAFBridge |
This class is a bridge between GenericUDAF and UDAF. |
GenericUDAFBridge.GenericUDAFBridgeEvaluator |
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GenericUDAFCount |
This class implements the COUNT aggregation function as in SQL. |
GenericUDAFCount.GenericUDAFCountEvaluator |
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GenericUDAFEvaluator |
A Generic User-defined aggregation function (GenericUDAF) for the use with
Hive. |
GenericUDAFStd |
Compute the standard deviation by extending GenericUDAFVariance and
overriding the terminate() method of the evaluator. |
GenericUDAFStd.GenericUDAFStdEvaluator |
Compute the standard deviation by extending GenericUDAFVarianceEvaluator
and overriding the terminate() method of the evaluator. |
GenericUDAFStdSample |
Compute the sample standard deviation by extending GenericUDAFVariance and
overriding the terminate() method of the evaluator. |
GenericUDAFStdSample.GenericUDAFStdSampleEvaluator |
Compute the sample standard deviation by extending
GenericUDAFVarianceEvaluator and overriding the terminate() method of the
evaluator |
GenericUDAFSum |
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GenericUDAFSum.GenericUDAFSumDouble |
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GenericUDAFSum.GenericUDAFSumLong |
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GenericUDAFVariance |
Compute the variance. |
GenericUDAFVariance.GenericUDAFVarianceEvaluator |
Evaluate the variance using the following modification of the formula from
The Art of Computer Programming, vol. |
GenericUDAFVarianceSample |
Compute the sample variance by extending GenericUDAFVariance and
overriding the terminate() method of the evaluator. |
GenericUDAFVarianceSample.GenericUDAFVarianceSampleEvaluator |
Compute the sample variance by extending
GenericUDAFVarianceEvaluator and overriding the terminate() method of the
evaluator |
GenericUDF |
A Generic User-defined function (GenericUDF) for the use with Hive. |
GenericUDFCase |
GenericUDF Class for SQL construct "CASE WHEN a THEN b WHEN c THEN d [ELSE f] END". |
GenericUDFCoalesce |
GenericUDF Class for SQL construct "COALESCE(a, b, c)". |
GenericUDFElt |
Generic UDF for string function ELT(N,str1,str2,str3,...) . |
GenericUDFHash |
GenericUDF Class for computing hash values. |
GenericUDFIf |
IF(expr1,expr2,expr3)
If expr1 is TRUE (expr1 <> 0 and expr1 <> NULL) then IF() returns expr2; otherwise it returns expr3. |
GenericUDFIndex |
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GenericUDFInstr |
Generic UDF for string function INSTR(str,substr) . |
GenericUDFLocate |
Generic UDF for string function LOCATE(substr, str) , LOCATE(substr, str, start) . |
GenericUDFOPNotNull |
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GenericUDFOPNull |
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GenericUDFSize |
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GenericUDFSplit |
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GenericUDFUtils |
Util functions for GenericUDF classes. |
GenericUDFUtils.PrimitiveConversionHelper |
Convert primitive parameters between Java and Writable when needed. |
GenericUDFUtils.ReturnObjectInspectorResolver |
This class helps to find the return ObjectInspector for a GenericUDF. |
GenericUDFWhen |
GenericUDF Class for SQL construct "CASE a WHEN b THEN c [ELSE f] END". |