public class AsyncLookupJoinWithCalcRunner extends AsyncLookupJoinRunner
preFilterCondition, rightRowSerializer
Constructor and Description |
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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) |
Modifier and Type | Method and Description |
---|---|
void |
close()
Tear-down method for the user code.
|
TableFunctionResultFuture<RowData> |
createFetcherResultFuture(Configuration parameters) |
void |
open(OpenContext openContext)
Initialization method for the function.
|
asyncInvoke, getAllResultFutures
setRuntimeContext
getIterationRuntimeContext, getRuntimeContext, open
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
timeout
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)
public void open(OpenContext openContext) throws Exception
RichFunction
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);
}
}
By default, this method does nothing.
1. If you implement open(OpenContext openContext)
, the open(OpenContext
openContext)
will be invoked and the open(Configuration parameters)
won't be
invoked. 2. If you don't implement open(OpenContext openContext)
, the open(Configuration parameters)
will be invoked in the default implementation of the open(OpenContext openContext)
.
open
in interface RichFunction
open
in class AsyncLookupJoinRunner
openContext
- The context containing information about the context in which the function
is opened.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.public TableFunctionResultFuture<RowData> createFetcherResultFuture(Configuration parameters) throws Exception
createFetcherResultFuture
in class AsyncLookupJoinRunner
Exception
public void close() throws Exception
RichFunction
This method can be used for clean up work.
close
in interface RichFunction
close
in class AsyncLookupJoinRunner
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.Copyright © 2014–2024 The Apache Software Foundation. All rights reserved.