public class ToDate extends EvalFunc<org.joda.time.DateTime>
ToDate converts the ISO or the customized string or the Unix timestamp to the DateTime object.
ToDate is overloaded.
DateTime ToDate(Long millis).the milliseconds.the DateTime object.DateTime ToDate(String dtStr).the ISO format date time string.the DateTime object.DateTime ToDate(String dtStr, String format).dtStr: the string that represents a date time.format: the format string.the DateTime object.DateTime ToDate(String dtStr, String format, String timezone).dtStr: the string that represents a date time.format: the format string.timezone: the timezone string.the DateTime object.EvalFunc.SchemaTypelog, pigLogger, reporter, returnType| Constructor and Description |
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ToDate() |
| Modifier and Type | Method and Description |
|---|---|
boolean |
allowCompileTimeCalculation()
Whether the UDF should be evaluated at compile time if all inputs are constant.
|
org.joda.time.DateTime |
exec(Tuple input)
This callback method must be implemented by all subclasses.
|
static org.joda.time.DateTime |
extractDateTime(String dtStr) |
static org.joda.time.DateTimeZone |
extractDateTimeZone(String dtStr) |
List<FuncSpec> |
getArgToFuncMapping()
Allow a UDF to specify type specific implementations of itself.
|
Schema |
outputSchema(Schema input)
Report the schema of the output of this UDF.
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finish, getCacheFiles, getInputSchema, getLoadCaster, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warnpublic org.joda.time.DateTime exec(Tuple input) throws IOException
EvalFuncexec in class EvalFunc<org.joda.time.DateTime>input - the Tuple to be processed.IOExceptionpublic Schema outputSchema(Schema input)
EvalFunc
The default implementation interprets the OutputSchema annotation,
if one is present. Otherwise, it returns null (no known output schema).
outputSchema in class EvalFunc<org.joda.time.DateTime>input - Schema of the inputpublic List<FuncSpec> getArgToFuncMapping() throws FrontendException
EvalFuncgetArgToFuncMapping in class EvalFunc<org.joda.time.DateTime>FrontendExceptionpublic static org.joda.time.DateTimeZone extractDateTimeZone(String dtStr)
public static org.joda.time.DateTime extractDateTime(String dtStr)
public boolean allowCompileTimeCalculation()
EvalFuncallowCompileTimeCalculation in class EvalFunc<org.joda.time.DateTime>Copyright © 2007-2017 The Apache Software Foundation