public class DateExtractor extends EvalFunc<String>
EvalFunc.SchemaTypelog, pigLogger, reporter, returnType| Constructor and Description |
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DateExtractor()
forms the formats based on default incomingDateFormat and default outgoingDateFormat
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DateExtractor(String outgoingDateString)
forms the formats based on passed outgoingDateString and the default incomingDateFormat
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DateExtractor(String incomingDateString,
String outgoingDateString)
forms the formats based on passed incomingDateString and outgoingDateString
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DateExtractor(String incomingDateString,
String outgoingDateString,
String timeZoneID)
forms the formats based on passed incomingDateString and outgoingDateString
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| Modifier and Type | Method and Description |
|---|---|
String |
exec(Tuple input)
This callback method must be implemented by all subclasses.
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List<FuncSpec> |
getArgToFuncMapping()
Allow a UDF to specify type specific implementations of itself.
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allowCompileTimeCalculation, finish, getCacheFiles, getInputSchema, getLoadCaster, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, outputSchema, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warnpublic DateExtractor()
outgoingDateString - outgoingDateFormat is based on outgoingDateStringpublic DateExtractor(String outgoingDateString)
outgoingDateString - outgoingDateFormat is based on outgoingDateStringpublic DateExtractor(String incomingDateString, String outgoingDateString)
incomingDateString - incomingDateFormat is based on incomingDateStringoutgoingDateString - outgoingDateFormat is based on outgoingDateStringpublic DateExtractor(String incomingDateString, String outgoingDateString, String timeZoneID)
incomingDateString - incomingDateFormat is based on incomingDateStringoutgoingDateString - outgoingDateFormat is based on outgoingDateStringtimeZoneID - time zone id in which dates should be expressed.public String exec(Tuple input) throws IOException
EvalFuncexec in class EvalFunc<String>input - the Tuple to be processed.IOExceptionpublic List<FuncSpec> getArgToFuncMapping() throws FrontendException
EvalFuncgetArgToFuncMapping in class EvalFunc<String>FrontendExceptionCopyright © 2007-2017 The Apache Software Foundation