Package org.apache.flink.streaming.examples.dsv2.windowing

Class CountProductSalesWindowing.CountSalesQuantity

java.lang.Object

org.apache.flink.streaming.examples.dsv2.windowing.CountProductSalesWindowing.CountSalesQuantity

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.datastream.api.extension.window.function.OneInputWindowStreamProcessFunction<CountProductSalesWindowing.Order,CountProductSalesWindowing.ProductSales>, org.apache.flink.datastream.api.extension.window.function.WindowProcessFunction, org.apache.flink.datastream.api.function.ProcessFunction

Enclosing class:

CountProductSalesWindowing

public static class CountProductSalesWindowing.CountSalesQuantity
extends Object
implements org.apache.flink.datastream.api.extension.window.function.OneInputWindowStreamProcessFunction<CountProductSalesWindowing.Order,CountProductSalesWindowing.ProductSales>

Count sales quantity per product.

We will obtain all orders and calculate the total sales quantity for each product when window trigger.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CountSalesQuantity()

Method Summary

Modifier and Type	Method	Description
void	onTrigger(org.apache.flink.datastream.api.common.Collector<CountProductSalesWindowing.ProductSales> output, org.apache.flink.datastream.api.context.PartitionedContext<CountProductSalesWindowing.ProductSales> ctx, org.apache.flink.datastream.api.extension.window.context.OneInputWindowContext<CountProductSalesWindowing.Order> windowContext)

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.datastream.api.extension.window.function.OneInputWindowStreamProcessFunction

onClear, onLateRecord, onRecord

Methods inherited from interface org.apache.flink.datastream.api.function.ProcessFunction

close, declareWatermarks, usesStates

Methods inherited from interface org.apache.flink.datastream.api.extension.window.function.WindowProcessFunction

useWindowStates

Constructor Details

CountSalesQuantity

public CountSalesQuantity()

Method Details

onTrigger

public void onTrigger(org.apache.flink.datastream.api.common.Collector<CountProductSalesWindowing.ProductSales> output,
 org.apache.flink.datastream.api.context.PartitionedContext<CountProductSalesWindowing.ProductSales> ctx,
 org.apache.flink.datastream.api.extension.window.context.OneInputWindowContext<CountProductSalesWindowing.Order> windowContext)
               throws Exception

Specified by:

onTrigger in interface org.apache.flink.datastream.api.extension.window.function.OneInputWindowStreamProcessFunction<CountProductSalesWindowing.Order,CountProductSalesWindowing.ProductSales>

Throws:

Exception