org.apache.hadoop.hive.ql.udf.generic

Class GenericUDFNextDay

java.lang.Object

org.apache.hadoop.hive.ql.udf.generic.GenericUDF

org.apache.hadoop.hive.ql.udf.generic.GenericUDFNextDay

All Implemented Interfaces:

Closeable, AutoCloseable

public class GenericUDFNextDay
extends GenericUDF

GenericUDFNextDay. Returns the first date which is later than start_date and named as indicated

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GenericUDFNextDay.DayOfWeek

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

GenericUDF.DeferredJavaObject, GenericUDF.DeferredObject

Constructor Summary

Constructors

Constructor and Description
GenericUDFNextDay()

Method Summary

Methods

Modifier and Type	Method and Description
Object	evaluate(GenericUDF.DeferredObject[] arguments) Evaluate the GenericUDF with the arguments.
String	getDisplayString(String[] children) Get the String to be displayed in explain.
protected String	getFuncName()
protected int	getIntDayOfWeek(String dayOfWeek)
ObjectInspector	initialize(ObjectInspector[] arguments) Initialize this GenericUDF.
protected Calendar	nextDay(Date date, int dayOfWeek)

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

checkArgGroups, checkArgPrimitive, checkArgsSize, close, configure, copyToNewInstance, flip, getArgOrder, getConstantIntValue, getConstantLongValue, getConstantStringValue, getDateValue, getDoubleValue, getIntValue, getLongValue, getRequiredFiles, getRequiredJars, getStandardDisplayString, getStandardDisplayString, getStringValue, getTimestampValue, getUdfName, initializeAndFoldConstants, negative, obtainDateConverter, obtainDoubleConverter, obtainIntConverter, obtainLongConverter, obtainStringConverter, obtainTimestampConverter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenericUDFNextDay

public GenericUDFNextDay()

Method Detail

initialize

public ObjectInspector initialize(ObjectInspector[] arguments)
                           throws UDFArgumentException

Description copied from class: GenericUDF

Initialize this GenericUDF. This will be called once and only once per GenericUDF instance.

Specified by:

initialize in class GenericUDF

Parameters:

arguments - The ObjectInspector for the arguments

Returns:

The ObjectInspector for the return value

Throws:

UDFArgumentException - Thrown when arguments have wrong types, wrong length, etc.

evaluate

public Object evaluate(GenericUDF.DeferredObject[] arguments)
                throws HiveException

Description copied from class: GenericUDF

Evaluate the GenericUDF with the arguments.

Specified by:

evaluate in class GenericUDF

Parameters:

arguments - The arguments as DeferedObject, use DeferedObject.get() to get the actual argument Object. The Objects can be inspected by the ObjectInspectors passed in the initialize call.

Returns:

The

Throws:

HiveException

getDisplayString

public String getDisplayString(String[] children)

Description copied from class: GenericUDF

Get the String to be displayed in explain.

Specified by:

getDisplayString in class GenericUDF

getFuncName

protected String getFuncName()

Overrides:

getFuncName in class GenericUDF

nextDay

protected Calendar nextDay(Date date,
               int dayOfWeek)

getIntDayOfWeek

protected int getIntDayOfWeek(String dayOfWeek)
                       throws UDFArgumentException

Throws:

UDFArgumentException