Class UDFRegistration

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

Since

1.0.0

Constructors

constructor

Methods

registerJava

Constructors

constructor

Methods

registerJava

  • registerJava(
        name: string,
        className: string,
        returnType?: DataType,
    ): Promise<void>

    Register a Java user-defined function.

    Parameters

    • name: string

      The name of the UDF

    • className: string

      The fully qualified Java class name

    • OptionalreturnType: DataType

      Optional return type of the UDF. If undefined, the server will determine the type.

    Returns Promise<void>

    Promise

    Example

    spark.udf.registerJava("javaUdf", "com.example.MyUDF", DataTypes.IntegerType);
    // Or let server decide the return type:
    spark.udf.registerJava("javaUdf", "com.example.MyUDF");

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