Package org.apache.hadoop.hive.ql.udf

Interface Summary

Interface	Description
SettableUDF	THIS INTERFACE IS UNSTABLE AND SHOULD NOT BE USED BY 3RD PARTY UDFS.

Class Summary

Class	Description
GenericUDFDecode
GenericUDFEncode
TestGenericUDFDecode
TestGenericUDFEncode
TestToInteger
TestUDFBase64
TestUDFDateAdd	JUnit test for UDFDateAdd.
TestUDFDateDiff	JUnit test for UDFDateDiff.
TestUDFDateSub	JUnit test for UDFDateSub.
TestUDFHex
TestUDFUnbase64
TestUDFUnhex
UDAFPercentile	UDAF for calculating the percentile values.
UDAFPercentile.MyComparator	A comparator to sort the entries in order.
UDAFPercentile.PercentileLongArrayEvaluator	The evaluator for percentile computation based on long for an array of percentiles.
UDAFPercentile.PercentileLongEvaluator	The evaluator for percentile computation based on long.
UDAFPercentile.State	A state class to store intermediate aggregation results.
UDAFTestMax	UDAFTestMax.
UDAFTestMax.MaxDoubleEvaluator	MaxDoubleEvaluator.
UDAFTestMax.MaxFloatEvaluator	MaxFloatEvaluator.
UDAFTestMax.MaxIntEvaluator	MaxIntEvaluator.
UDAFTestMax.MaxLongEvaluator	MaxLongEvaluator.
UDAFTestMax.MaxShortEvaluator	MaxShortEvaluator.
UDAFTestMax.MaxStringEvaluator	MaxStringEvaluator.
UDAFWrongArgLengthForTestCase	UDAFWrongArgLengthForTestCase.
UDAFWrongArgLengthForTestCase.UDAFWrongArgLengthForTestCaseEvaluator	UDAFWrongArgLengthForTestCaseEvaluator.
UDFAbs	UDFAbs.
UDFAcos	UDFAcos.
UDFAscii	UDFAscii.
UDFAsin	UDFAsin.
UDFAtan
UDFBase64
UDFBaseBitOP	Base class for numeric operators like +, -, / etc.
UDFBaseNumericOp	Base class for numeric operators like +, -, / etc.
UDFBaseNumericUnaryOp	Base class for numeric operators like +, -, / etc.
UDFBin	UDFBin.
UDFCeil	UDFCeil.
UDFConv	UDFConv.
UDFCos	UDFCos.
UDFDate	UDFDate.
UDFDateAdd	UDFDateAdd.
UDFDateDiff	UDFDateDiff.
UDFDateSub	UDFDateSub.
UDFDayOfMonth	UDFDayOfMonth.
UDFDegrees
UDFE
UDFExp	UDFExp.
UDFFindInSet	UDFFindInSet.
UDFFloor	UDFFloor.
UDFFromUnixTime	UDFFromUnixTime.
UDFHex	UDFHex.
UDFHour	UDFHour.
UDFJson	UDFJson.
UDFLength	UDFLength.
UDFLike	UDFLike.
UDFLn	UDFLn.
UDFLog	UDFLog.
UDFLog10	UDFLog10.
UDFLog2	UDFLog2.
UDFLpad	UDFLpad.
UDFLTrim	UDFLTrim.
UDFMinute	UDFMinute.
UDFMonth	UDFMonth.
UDFOPBitAnd	UDFOPBitAnd.
UDFOPBitNot	UDFOPBitNot.
UDFOPBitOr	UDFOPBitOr.
UDFOPBitXor	UDFOPBitXor.
UDFOPDivide	UDFOPDivide.
UDFOPLongDivide	UDFOPLongDivide.
UDFOPMinus	UDFOPMinus.
UDFOPMod	UDFOPMod.
UDFOPMultiply	UDFOPMultiply.
UDFOPNegative	UDFOPNegative.
UDFOPPlus	The reason that we list evaluate methods with all numeric types is for both better performance and type checking (so we know int + int is still an int instead of a double); otherwise a single method that takes (Number a, Number b) and use a.doubleValue() == b.doubleValue() is enough.
UDFOPPositive	UDFOPPositive.
UDFParseUrl	UDF to extract specfic parts from URL For example, parse_url('http://facebook.com/path/p1.php?query=1', 'HOST') will return 'facebook.com' For example, parse_url('http://facebook.com/path/p1.php?query=1', 'PATH') will return '/path/p1.php' parse_url('http://facebook.com/path/p1.php?query=1', 'QUERY') will return 'query=1' parse_url('http://facebook.com/path/p1.php?query=1#Ref', 'REF') will return 'Ref' parse_url('http://facebook.com/path/p1.php?query=1#Ref', 'PROTOCOL') will return 'http' Possible values are HOST,PATH,QUERY,REF,PROTOCOL,AUTHORITY,FILE,USERINFO Also you can get a value of particular key in QUERY, using syntax QUERY: eg: QUERY:k1.
UDFPI
UDFPosMod	class for computing positive modulo.
UDFPower	UDFPower.
UDFRadians
UDFRand	UDFRand.
UDFRegExp	UDFRegExp.
UDFRegExpExtract	UDF to extract a specific group identified by a java regex.
UDFRegExpReplace	UDFRegExpReplace.
UDFRepeat	UDFRepeat.
UDFReverse	UDFReverse.
UDFRound	UDFRound.
UDFRpad	UDFRpad.
UDFRTrim	UDFRTrim.
UDFSecond	UDFSecond.
UDFSign
UDFSin	UDFSin.
UDFSpace	UDFSpace.
UDFSqrt	Implementation of the SQRT UDF found in many databases.
UDFSubstr	UDFSubstr.
UDFTan
UDFTestErrorOnFalse	A UDF for testing, which throws RuntimeException if the length of a string.
UDFTestLength	A UDF for testing, which evaluates the length of a string.
UDFTestLength2	A UDF for testing, which evaluates the length of a string.
UDFToBoolean	UDFToBoolean.
UDFToByte	UDFToByte.
UDFToDouble	UDFToDouble.
UDFToFloat	UDFToFloat.
UDFToInteger	UDFToInteger.
UDFToLong	UDFToLong.
UDFToShort	UDFToShort.
UDFToString	UDFToString.
UDFTrim	UDFTrim.
UDFUnbase64
UDFUnhex	UDFUnhex.
UDFWeekOfYear	UDFWeekOfYear.
UDFYear	UDFYear.

Annotation Types Summary

Annotation Type	Description
UDFType	UDFType.