WeiZhong94 commented on a change in pull request #9766: [FLINK-14018][python]
Add Python building blocks to make sure the basic functionality of Python
ScalarFunction could work
URL: https://github.com/apache/flink/pull/9766#discussion_r328465489
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File path: flink-python/pyflink/table/table_environment.py
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@@ -542,6 +542,24 @@ def register_java_function(self, name,
function_class_name):
.loadClass(function_class_name).newInstance()
self._j_tenv.registerFunction(name, java_function)
+ def register_function(self, name, function):
+ """
+ Registers a python user-defined function under a unique name. Replaces
already existing
+ user-defined function under this name.
+
+ Example:
+ ::
+
+ >>> table_env.register_function(
+ ... "add_one", udf(lambda i: i + 1, DataTypes.BIGINT(),
DataTypes.BIGINT()))
+
+ :param name: The name under which the function is registered.
+ :type name: str
+ :param function: The python user-defined function to register.
+ :type function: UserDefinedFunctionWrapper
+ """
+ self._j_tenv.registerFunction(name, function.judf)
Review comment:
Maybe we should rename the property to "_judf"?
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