pyspark.sql.functions.reflect#
- pyspark.sql.functions.reflect(*cols)[source]#
Calls a method with reflection.
New in version 3.5.0.
- Parameters
- cols
Column
or column name 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.
- cols
Examples
>>> import pyspark.sql.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) +--------------------------------------+ |reflect(java.util.UUID, fromString, a)| +--------------------------------------+ |a5cf6c42-0c85-418f-af6c-3e4e5b1328f2 | +--------------------------------------+