org.apache.flink.streaming.runtime.operators.windowing.functions

Class InternalSingleValueAllWindowFunction<IN,OUT,W extends Window>

java.lang.Object

org.apache.flink.streaming.runtime.operators.windowing.functions.InternalWindowFunction<IN,OUT,Byte,W>

org.apache.flink.streaming.runtime.operators.windowing.functions.InternalSingleValueAllWindowFunction<IN,OUT,W>

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, OutputTypeConfigurable<OUT>

public final class InternalSingleValueAllWindowFunction<IN,OUT,W extends Window>
extends InternalWindowFunction<IN,OUT,Byte,W>
implements org.apache.flink.api.common.functions.RichFunction

Internal window function for wrapping an AllWindowFunction that takes an Iterable when the window state is a single value.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected AllWindowFunction<IN,OUT,W>	wrappedFunction

Constructor Summary

Constructors

Constructor and Description
InternalSingleValueAllWindowFunction(AllWindowFunction<IN,OUT,W> wrappedFunction)

Method Summary

Modifier and Type	Method and Description
void	apply(Byte key, W window, IN input, org.apache.flink.util.Collector<OUT> out) Evaluates the window and outputs none or several elements.
void	close()
org.apache.flink.api.common.functions.IterationRuntimeContext	getIterationRuntimeContext()
org.apache.flink.api.common.functions.RuntimeContext	getRuntimeContext()
void	open(org.apache.flink.configuration.Configuration parameters)
void	setOutputType(org.apache.flink.api.common.typeinfo.TypeInformation<OUT> outTypeInfo, org.apache.flink.api.common.ExecutionConfig executionConfig) Is called by the StreamGraph.addOperator(Integer, String, StreamOperator, TypeInformation, TypeInformation, String) method when the StreamGraph is generated.
void	setRuntimeContext(org.apache.flink.api.common.functions.RuntimeContext t)

Methods inherited from class java.lang.Object

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

Field Detail

wrappedFunction

protected AllWindowFunction<IN,OUT,W extends Window> wrappedFunction

Constructor Detail

InternalSingleValueAllWindowFunction

public InternalSingleValueAllWindowFunction(AllWindowFunction<IN,OUT,W> wrappedFunction)

Method Detail

apply

public void apply(Byte key,
                  W window,
                  IN input,
                  org.apache.flink.util.Collector<OUT> out)
           throws Exception

Description copied from class: InternalWindowFunction

Evaluates the window and outputs none or several elements.

Specified by:

apply in class InternalWindowFunction<IN,OUT,Byte,W extends Window>

Parameters:

key - The key for which this window is evaluated.

window - The window that is being evaluated.

input - The elements in the window being evaluated.

out - A collector for emitting elements.

Throws:

Exception - The function may throw exceptions to fail the program and trigger recovery.

open

public void open(org.apache.flink.configuration.Configuration parameters)
          throws Exception

Specified by:

open in interface org.apache.flink.api.common.functions.RichFunction

Throws:

Exception

close

public void close()
           throws Exception

Specified by:

close in interface org.apache.flink.api.common.functions.RichFunction

Throws:

Exception

setRuntimeContext

public void setRuntimeContext(org.apache.flink.api.common.functions.RuntimeContext t)

Specified by:

setRuntimeContext in interface org.apache.flink.api.common.functions.RichFunction

getRuntimeContext

public org.apache.flink.api.common.functions.RuntimeContext getRuntimeContext()

Specified by:

getRuntimeContext in interface org.apache.flink.api.common.functions.RichFunction

getIterationRuntimeContext

public org.apache.flink.api.common.functions.IterationRuntimeContext getIterationRuntimeContext()

Specified by:

getIterationRuntimeContext in interface org.apache.flink.api.common.functions.RichFunction

setOutputType

public void setOutputType(org.apache.flink.api.common.typeinfo.TypeInformation<OUT> outTypeInfo,
                          org.apache.flink.api.common.ExecutionConfig executionConfig)

Description copied from interface: OutputTypeConfigurable

Is called by the StreamGraph.addOperator(Integer, String, StreamOperator, TypeInformation, TypeInformation, String) method when the StreamGraph is generated. The method is called with the output TypeInformation which is also used for the StreamTask output serializer.

Specified by:

setOutputType in interface OutputTypeConfigurable<OUT>

Parameters:

outTypeInfo - Output type information of the StreamTask

executionConfig - Execution configuration