org.apache.flink.streaming.python.api.functions

Class PythonSinkFunction

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.streaming.python.api.functions.AbstractPythonUDF<org.apache.flink.streaming.api.functions.sink.SinkFunction<org.python.core.PyObject>>

org.apache.flink.streaming.python.api.functions.PythonSinkFunction

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, org.apache.flink.streaming.api.functions.sink.SinkFunction<org.python.core.PyObject>

public class PythonSinkFunction
extends AbstractPythonUDF<org.apache.flink.streaming.api.functions.sink.SinkFunction<org.python.core.PyObject>>
implements org.apache.flink.streaming.api.functions.sink.SinkFunction<org.python.core.PyObject>

The PythonSinkFunction is a thin wrapper layer over a Python UDF SinkFunction. It receives a SinkFunction as an input and keeps it internally in a serialized form. It is then delivered, as part of the job graph, up to the TaskManager, then it is opened and becomes a sort of mediator to the Python UDF SinkFunction.

This function is used internally by the Python thin wrapper layer over the streaming data functionality

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.streaming.api.functions.sink.SinkFunction

org.apache.flink.streaming.api.functions.sink.SinkFunction.Context<T>

Field Summary

Fields inherited from class org.apache.flink.streaming.python.api.functions.AbstractPythonUDF

fun, log

Constructor Summary

Constructors

Constructor and Description
PythonSinkFunction(org.apache.flink.streaming.api.functions.sink.SinkFunction<org.python.core.PyObject> fun)

Method Summary

Modifier and Type	Method and Description
void	invoke(org.python.core.PyObject value, org.apache.flink.streaming.api.functions.sink.SinkFunction.Context context)

Methods inherited from class org.apache.flink.streaming.python.api.functions.AbstractPythonUDF

close, open

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.streaming.api.functions.sink.SinkFunction

invoke

Constructor Detail

PythonSinkFunction

public PythonSinkFunction(org.apache.flink.streaming.api.functions.sink.SinkFunction<org.python.core.PyObject> fun)
                   throws IOException

Throws:

IOException

Method Detail

invoke

public void invoke(org.python.core.PyObject value,
                   org.apache.flink.streaming.api.functions.sink.SinkFunction.Context context)
            throws Exception

Specified by:

invoke in interface org.apache.flink.streaming.api.functions.sink.SinkFunction<org.python.core.PyObject>

Throws:

Exception