reflect

Calls a method with reflection.

Syntax

Python

from pyspark.sql import functions as sf

sf.reflect(*cols)

Parameters

Parameter	Type	Description
cols	pyspark.sql.Column or str	The first element should be a Column representing literal string for the class name, and the second element should be a Column representing literal string for the method name, and the remaining are input arguments (Columns or column names) to the Java method.

Examples

Example 1: Reflecting a method call

Python

from pyspark.sql import functions as sf
df = spark.createDataFrame([('a5cf6c42-0c85-418f-af6c-3e4e5b1328f2',)], ['a'])
df.select(
    sf.reflect(sf.lit('java.util.UUID'), sf.lit('fromString'), 'a')
).show(truncate=False)

Output

+--------------------------------------+
|reflect(java.util.UUID, fromString, a)|
+--------------------------------------+
|a5cf6c42-0c85-418f-af6c-3e4e5b1328f2  |
+--------------------------------------+