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

Class ResultRetryStrategy

java.lang.Object

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

All Implemented Interfaces:

Serializable, AsyncRetryStrategy<RowData>

public class ResultRetryStrategy
extends Object
implements AsyncRetryStrategy<RowData>

A utility class to wrap the data stream api AsyncRetryStrategy to support both sync and async retry in table module. The main consideration is making the class name not bind to async scope, and also highlight the retry predicate is only over the result (not exception).

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static ResultRetryStrategy	NO_RETRY_STRATEGY

Constructor Summary

Constructors

Constructor and Description
ResultRetryStrategy(AsyncRetryStrategy retryStrategy)

Method Summary

Modifier and Type	Method and Description
boolean	canRetry(int currentAttempts)
static ResultRetryStrategy	fixedDelayRetry(int maxAttempts, long backoffTimeMillis, Predicate<Collection<RowData>> resultPredicate) Create a fixed-delay retry strategy by given params.
long	getBackoffTimeMillis(int currentAttempts)
AsyncRetryPredicate<RowData>	getRetryPredicate()

Methods inherited from class java.lang.Object

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

Field Detail

NO_RETRY_STRATEGY

public static final ResultRetryStrategy NO_RETRY_STRATEGY

Constructor Detail

ResultRetryStrategy

@VisibleForTesting
public ResultRetryStrategy(AsyncRetryStrategy retryStrategy)

Method Detail

fixedDelayRetry

public static ResultRetryStrategy fixedDelayRetry(int maxAttempts,
                                                  long backoffTimeMillis,
                                                  Predicate<Collection<RowData>> resultPredicate)

Create a fixed-delay retry strategy by given params.

canRetry

public boolean canRetry(int currentAttempts)

Specified by:

canRetry in interface AsyncRetryStrategy<RowData>

Returns:

whether the next attempt can happen

getBackoffTimeMillis

public long getBackoffTimeMillis(int currentAttempts)

Specified by:

getBackoffTimeMillis in interface AsyncRetryStrategy<RowData>

Returns:

the delay time of next attempt

getRetryPredicate

public AsyncRetryPredicate<RowData> getRetryPredicate()

Specified by:

getRetryPredicate in interface AsyncRetryStrategy<RowData>

Returns:

the defined retry predicate AsyncRetryPredicate