Package org.apache.spark.sql

Class UDFRegistration

Object

org.apache.spark.sql.api.UDFRegistration

org.apache.spark.sql.UDFRegistration

All Implemented Interfaces:

org.apache.spark.internal.Logging

public class UDFRegistration
extends UDFRegistration
implements org.apache.spark.internal.Logging

Functions for registering user-defined functions. Use SparkSession.udf to access this:

   spark.udf
 

Since:

1.3.0

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.spark.internal.Logging

org.apache.spark.internal.Logging.LogStringContext, org.apache.spark.internal.Logging.SparkShellLoggingFilter

Method Summary

Modifier and Type	Method	Description
UserDefinedAggregateFunction	register(String name, UserDefinedAggregateFunction udaf)	Deprecated. this method and the use of UserDefinedAggregateFunction are deprecated.

Methods inherited from class org.apache.spark.sql.api.UDFRegistration

register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register, register

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.spark.internal.Logging

initializeForcefully, initializeLogIfNecessary, initializeLogIfNecessary, initializeLogIfNecessary$default$2, isTraceEnabled, log, logDebug, logDebug, logDebug, logDebug, logError, logError, logError, logError, logInfo, logInfo, logInfo, logInfo, logName, LogStringContext, logTrace, logTrace, logTrace, logTrace, logWarning, logWarning, logWarning, logWarning, org$apache$spark$internal$Logging$$log_, org$apache$spark$internal$Logging$$log__$eq, withLogContext

Method Details

register

public UserDefinedAggregateFunction register(String name,
 UserDefinedAggregateFunction udaf)

Deprecated.

this method and the use of UserDefinedAggregateFunction are deprecated. Aggregator[IN, BUF, OUT] should now be registered as a UDF via the functions.udaf(agg) method.

Registers a user-defined aggregate function (UDAF).

Parameters:

name - the name of the UDAF.

udaf - the UDAF needs to be registered.

Returns:

the registered UDAF.

Since:

1.5.0