io.axoniq.axonserver.connector.query.impl

Class SubscriptionQueryUpdateBuffer

java.lang.Object

io.axoniq.axonserver.connector.impl.FlowControlledStream<T,R>

io.axoniq.axonserver.connector.impl.FlowControlledBuffer<T,R>

io.axoniq.axonserver.connector.impl.AbstractBufferedStream<QueryUpdate,SubscriptionQueryRequest>

io.axoniq.axonserver.connector.query.impl.SubscriptionQueryUpdateBuffer

All Implemented Interfaces:

ResultStream<QueryUpdate>, io.grpc.stub.ClientResponseObserver<SubscriptionQueryRequest,QueryUpdate>, io.grpc.stub.StreamObserver<QueryUpdate>, AutoCloseable

public class SubscriptionQueryUpdateBuffer
extends AbstractBufferedStream<QueryUpdate,SubscriptionQueryRequest>

Buffer for SubscriptionQuery updates.

Constructor Summary

Constructors

Constructor and Description
SubscriptionQueryUpdateBuffer(String clientId, String subscriptionQueryId, int bufferSize, int refillBatch) Instantiates a SubscriptionQueryUpdateBuffer.

Method Summary

Modifier and Type	Method and Description
protected SubscriptionQueryRequest	buildFlowControlMessage(FlowControl flowControl) Build a flow control message of type OUT based on the given flowControl.
void	close() Requests the current stream to be closed.
void	onCompleted()
void	onError(Throwable t)
void	onNext(QueryUpdate value)
protected QueryUpdate	terminalMessage() Builds a terminal message of type T specifying when the this stream is closed.

Methods inherited from class io.axoniq.axonserver.connector.impl.AbstractBufferedStream

getError, isClosed, next, nextIfAvailable, nextIfAvailable, onAvailable, onCloseRequested, peek

Methods inherited from class io.axoniq.axonserver.connector.impl.FlowControlledBuffer

beforeStart, getErrorResult, take, tryTake, tryTake, tryTake, tryTakeNow

Methods inherited from class io.axoniq.axonserver.connector.impl.FlowControlledStream

buildInitialFlowControlMessage, enableFlowControl, markConsumed, outboundStream

Methods inherited from class java.lang.Object

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

Constructor Detail

SubscriptionQueryUpdateBuffer

public SubscriptionQueryUpdateBuffer(String clientId,
                                     String subscriptionQueryId,
                                     int bufferSize,
                                     int refillBatch)

Instantiates a SubscriptionQueryUpdateBuffer.

Parameters:

clientId - the identifier of the client initiating the subscription query

subscriptionQueryId - the identifier of the subscription query this buffer buffers for

bufferSize - the size of this buffer

refillBatch - the number of updates to be consumed prior to refilling this buffer

Method Detail

terminalMessage

protected QueryUpdate terminalMessage()

Description copied from class: FlowControlledBuffer

Builds a terminal message of type T specifying when the this stream is closed.

Specified by:

terminalMessage in class FlowControlledBuffer<QueryUpdate,SubscriptionQueryRequest>

Returns:

a terminal message of type T specifying when the this stream is closed

buildFlowControlMessage

protected SubscriptionQueryRequest buildFlowControlMessage(FlowControl flowControl)

Description copied from class: FlowControlledStream

Build a flow control message of type OUT based on the given flowControl.

Specified by:

buildFlowControlMessage in class FlowControlledStream<QueryUpdate,SubscriptionQueryRequest>

Parameters:

flowControl - the FlowControl message used to base this implementation's flow control message on

Returns:

the message used by this implementation to request new entries of type IN

onNext

public void onNext(QueryUpdate value)

Specified by:

onNext in interface io.grpc.stub.StreamObserver<QueryUpdate>

Overrides:

onNext in class AbstractBufferedStream<QueryUpdate,SubscriptionQueryRequest>

onError

public void onError(Throwable t)

Specified by:

onError in interface io.grpc.stub.StreamObserver<QueryUpdate>

Overrides:

onError in class AbstractBufferedStream<QueryUpdate,SubscriptionQueryRequest>

onCompleted

public void onCompleted()

Specified by:

onCompleted in interface io.grpc.stub.StreamObserver<QueryUpdate>

Overrides:

onCompleted in class AbstractBufferedStream<QueryUpdate,SubscriptionQueryRequest>

close

public void close()

Description copied from interface: ResultStream

Requests the current stream to be closed. It is up to the publishing end of the stream to honor the request.

Any elements received before closing are still available for reading.

Specified by:

close in interface ResultStream<QueryUpdate>

Specified by:

close in interface AutoCloseable

Overrides:

close in class AbstractBufferedStream<QueryUpdate,SubscriptionQueryRequest>