Package org.apache.flink.connector.base.sink.writer

Class BufferedRequestState<RequestEntryT extends Serializable>

java.lang.Object

org.apache.flink.connector.base.sink.writer.BufferedRequestState<RequestEntryT>

Type Parameters:

RequestEntryT - request type.

All Implemented Interfaces:

Serializable

@PublicEvolving
public class BufferedRequestState<RequestEntryT extends Serializable>
extends Object
implements Serializable

Class holding state of AsyncSinkWriter needed at taking a snapshot. The state captures the bufferedRequestEntries buffer for the writer at snapshot to resume the requests. This guarantees at least once semantic in sending requests where restoring from a snapshot where buffered requests were flushed to the sink will cause duplicate requests.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
BufferedRequestState(Deque<RequestEntryWrapper<RequestEntryT>> bufferedRequestEntries)
BufferedRequestState(List<RequestEntryWrapper<RequestEntryT>> bufferedRequestEntries)

Method Summary

Modifier and Type	Method	Description
static <T extends Serializable> BufferedRequestState<T>	emptyState()
List<RequestEntryWrapper<RequestEntryT>>	getBufferedRequestEntries()
long	getStateSize()

Methods inherited from class java.lang.Object

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

Constructor Details

BufferedRequestState

public BufferedRequestState(Deque<RequestEntryWrapper<RequestEntryT>> bufferedRequestEntries)

BufferedRequestState

public BufferedRequestState(List<RequestEntryWrapper<RequestEntryT>> bufferedRequestEntries)

Method Details

getBufferedRequestEntries

public List<RequestEntryWrapper<RequestEntryT>> getBufferedRequestEntries()

getStateSize

public long getStateSize()

emptyState

public static <T extends Serializable>
BufferedRequestState<T> emptyState()