com.snowflake.snowpark_java

Class UserDefinedFunction

java.lang.Object

com.snowflake.snowpark_java.UserDefinedFunction

public class UserDefinedFunction
extends Object

Encapsulates a user defined lambda or function that is returned by UDFRegistration.registerTemporary, UDFRegistration.registerPermanent, or Functions.udf.

Use UserDefinedFunction.apply to generate Column expressions from an instance.

 import com.snowflake.snowpark_java.functions;
 import com.snowflake.snowpark_java.types.DataTypes;

 UserDefinedFunction myUdf = Functions.udf(
   (Integer x, Integer y) -> x + y,
   new DataType[]{DataTypes.IntegerType, DataTypes.IntegerType},
   DataTypes.IntegerType
 );
 df.select(myUdf.apply(df.col("col2"), df.col("col2")));
 

Since:

0.12.0

Method Summary

Modifier and Type	Method and Description
Column	apply(Column... exprs) Apply the UDF to one or more columns to generate a Column expression.

Methods inherited from class java.lang.Object

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

Method Detail

apply

public Column apply(Column... exprs)

Apply the UDF to one or more columns to generate a Column expression.

Parameters:

exprs - The list of expression.

Returns:

The result column

Since:

0.12.0