org.apache.hive.hplsql.udf

Class Udf

java.lang.Object

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

org.apache.hive.hplsql.udf.Udf

All Implemented Interfaces:

Closeable, AutoCloseable

public class Udf
extends GenericUDF

Nested Class Summary

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

GenericUDF.DeferredJavaObject, GenericUDF.DeferredObject

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAME

Constructor Summary

Constructors

Constructor and Description
Udf()
Udf(Exec exec)

Method Summary

Modifier and Type	Method and Description
Object	evaluate(GenericUDF.DeferredObject[] arguments) Execute UDF
protected String	functionName(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector argument)
String	getDisplayString(String[] children)
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector	initialize(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector[] arguments) Initialize UDF
protected String	loadSource(SessionState sessionState, String functionName)

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

adapt, checkArgGroups, checkArgPrimitive, checkArgsSize, close, configure, copyToNewInstance, flip, getArgOrder, getConstantBooleanValue, getConstantIntValue, getConstantStringValue, getDateValue, getDoubleValue, getFuncName, getIntervalDayTimeValue, getIntervalYearMonthValue, 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

Field Detail

NAME

public static String NAME

Constructor Detail

Udf

public Udf()

Udf

public Udf(Exec exec)

Method Detail

initialize

public org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector initialize(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector[] arguments)
                                                                         throws UDFArgumentException

Initialize UDF

Specified by:

initialize in class GenericUDF

Throws:

UDFArgumentException

loadSource

protected String loadSource(SessionState sessionState,
                            String functionName)
                     throws UDFArgumentException

Throws:

UDFArgumentException

functionName

protected String functionName(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector argument)

evaluate

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

Execute UDF

Specified by:

evaluate in class GenericUDF

Throws:

HiveException

getDisplayString

public String getDisplayString(String[] children)

Specified by:

getDisplayString in class GenericUDF