Package org.apache.flink.table.runtime.operators.join.lookup

Class AsyncLookupJoinWithCalcRunner

java.lang.Object

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

org.apache.flink.streaming.api.functions.async.RichAsyncFunction<RowData,RowData>

org.apache.flink.table.runtime.operators.join.lookup.AsyncLookupJoinRunner

org.apache.flink.table.runtime.operators.join.lookup.AsyncLookupJoinWithCalcRunner

All Implemented Interfaces:

Serializable, Function, RichFunction, AsyncFunction<RowData,RowData>

public class AsyncLookupJoinWithCalcRunner
extends AsyncLookupJoinRunner

The async join runner with an additional calculate function on the dimension table.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.table.runtime.operators.join.lookup.AsyncLookupJoinRunner

preFilterCondition, rightRowSerializer

Constructor Summary

Constructors

Constructor

Description

AsyncLookupJoinWithCalcRunner(GeneratedFunction<AsyncFunction<RowData,Object>> generatedFetcher, DataStructureConverter<RowData,Object> fetcherConverter, GeneratedFunction<FlatMapFunction<RowData,RowData>> generatedCalc, GeneratedResultFuture<TableFunctionResultFuture<RowData>> generatedResultFuture, GeneratedFunction<FilterCondition> generatedPreFilterCondition, RowDataSerializer rightRowSerializer, boolean isLeftOuterJoin, int asyncBufferCapacity)

Method Summary

Modifier and Type	Method	Description
void	close()	Tear-down method for the user code.
TableFunctionResultFuture<RowData>	createFetcherResultFuture(Configuration parameters)
void	open(OpenContext openContext)	Initialization method for the function.

Methods inherited from class org.apache.flink.table.runtime.operators.join.lookup.AsyncLookupJoinRunner

asyncInvoke, getAllResultFutures

Methods inherited from class org.apache.flink.streaming.api.functions.async.RichAsyncFunction

setRuntimeContext

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

getIterationRuntimeContext, getRuntimeContext

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.async.AsyncFunction

timeout

Constructor Detail

AsyncLookupJoinWithCalcRunner

public AsyncLookupJoinWithCalcRunner(GeneratedFunction<AsyncFunction<RowData,Object>> generatedFetcher,
                                     DataStructureConverter<RowData,Object> fetcherConverter,
                                     GeneratedFunction<FlatMapFunction<RowData,RowData>> generatedCalc,
                                     GeneratedResultFuture<TableFunctionResultFuture<RowData>> generatedResultFuture,
                                     GeneratedFunction<FilterCondition> generatedPreFilterCondition,
                                     RowDataSerializer rightRowSerializer,
                                     boolean isLeftOuterJoin,
                                     int asyncBufferCapacity)

Method Detail

open

public void open(OpenContext openContext)
          throws Exception

Description copied from interface: RichFunction

Initialization method for the function. It is called before the actual working methods (like map or join) and thus suitable for one time setup work. For functions that are part of an iteration, this method will be invoked at the beginning of each iteration superstep.

The openContext object passed to the function can be used for configuration and initialization. The openContext contains some necessary information that were configured on the function in the program composition.

 public class MyFilter extends RichFilterFunction<String> {

     private String searchString;

     public void open(OpenContext openContext) {
         // initialize the value of searchString
     }

     public boolean filter(String value) {
         return value.equals(searchString);
     }
 }
 

Specified by:

open in interface RichFunction

Overrides:

open in class AsyncLookupJoinRunner

Parameters:

openContext - The context containing information about the context in which the function is opened.

Throws:

Exception - Implementations may forward exceptions, which are caught by the runtime. When the runtime catches an exception, it aborts the task and lets the fail-over logic decide whether to retry the task execution.

createFetcherResultFuture

public TableFunctionResultFuture<RowData> createFetcherResultFuture(Configuration parameters)
                                                             throws Exception

Overrides:

createFetcherResultFuture in class AsyncLookupJoinRunner

Throws:

Exception

close

public void close()
           throws Exception

Description copied from interface: RichFunction

Tear-down method for the user code. It is called after the last call to the main working methods (e.g. map or join). For functions that are part of an iteration, this method will be invoked after each iteration superstep.

This method can be used for clean up work.

Specified by:

close in interface RichFunction

Overrides:

close in class AsyncLookupJoinRunner

Throws:

Exception - Implementations may forward exceptions, which are caught by the runtime. When the runtime catches an exception, it aborts the task and lets the fail-over logic decide whether to retry the task execution.