接口的使用
org.apache.pulsar.client.api.MessageId

使用MessageId的程序包

程序包	说明
org.apache.pulsar.client.api
org.apache.pulsar.client.internal

org.apache.pulsar.client.api中MessageId的使用

声明为MessageId的org.apache.pulsar.client.api中的字段

限定符和类型	字段和说明
static MessageId	MessageId.earliest MessageId that represents the oldest message available in the topic
static MessageId	MessageId.latest MessageId that represents the next message published in the topic

返回MessageId的org.apache.pulsar.client.api中的方法

限定符和类型	方法和说明
static MessageId	MessageId.fromByteArray(byte[] data) De-serialize a message id from a byte array
static MessageId	MessageId.fromByteArrayWithTopic(byte[] data, String topicName) De-serialize a message id from a byte array with its topic information attached.
MessageId	Message.getMessageId() Get the unique message ID associated with this message.
MessageId	TypedMessageBuilder.send() Send a message synchronously.
MessageId	Producer.send(T message) Sends a message.

返回变量类型为MessageId的类型的org.apache.pulsar.client.api中的方法

限定符和类型	方法和说明
CompletableFuture<MessageId>	TypedMessageBuilder.sendAsync() Send a message asynchronously This method returns a future that can be used to track the completion of the send operation and yields the MessageId assigned by the broker to the published message.
CompletableFuture<MessageId>	Producer.sendAsync(T message) Send a message asynchronously When the producer queue is full, by default this method will complete the future with an exception PulsarClientException.ProducerQueueIsFullError See ProducerBuilder.maxPendingMessages(int) to configure the producer queue size and ProducerBuilder.blockIfQueueFull(boolean) to change the blocking behavior.

参数类型为MessageId的org.apache.pulsar.client.api中的方法

限定符和类型	方法和说明
void	Consumer.acknowledge(MessageId messageId) Acknowledge the consumption of a single message, identified by its MessageId.
CompletableFuture<Void>	Consumer.acknowledgeAsync(MessageId messageId) Asynchronously acknowledge the consumption of a single message
void	Consumer.acknowledgeCumulative(MessageId messageId) Acknowledge the reception of all the messages in the stream up to (and including) the provided message.
CompletableFuture<Void>	Consumer.acknowledgeCumulativeAsync(MessageId messageId) Asynchronously Acknowledge the reception of all the messages in the stream up to (and including) the provided message.
void	Consumer.negativeAcknowledge(MessageId messageId) Acknowledge the failure to process a single message.
void	ConsumerInterceptor.onAcknowledge(Consumer<T> consumer, MessageId messageId, Throwable exception) This is called consumer sends the acknowledgment to the broker.
void	ConsumerInterceptor.onAcknowledgeCumulative(Consumer<T> consumer, MessageId messageId, Throwable exception) This is called consumer send the cumulative acknowledgment to the broker.
void	ProducerInterceptor.onSendAcknowledgement(Producer<T> producer, Message<T> message, MessageId msgId, Throwable exception) This method is called when the message sent to the broker has been acknowledged, or when sending the message fails.
void	Consumer.seek(MessageId messageId) Reset the subscription associated with this consumer to a specific message id.
void	Reader.seek(MessageId messageId) Reset the subscription associated with this reader to a specific message id.
CompletableFuture<Void>	Consumer.seekAsync(MessageId messageId) Reset the subscription associated with this consumer to a specific message id.
CompletableFuture<Void>	Reader.seekAsync(MessageId messageId) Reset the subscription associated with this reader to a specific message id.
ReaderBuilder<T>	ReaderBuilder.startMessageId(MessageId startMessageId) The initial reader positioning is done by specifying a message id.

类型变量类型为MessageId的org.apache.pulsar.client.api中的方法参数

限定符和类型	方法和说明
void	ConsumerInterceptor.onAckTimeoutSend(Consumer<T> consumer, Set<MessageId> messageIds) This method will be called when a redelivery from an acknowledge timeout occurs.
void	ConsumerInterceptor.onNegativeAcksSend(Consumer<T> consumer, Set<MessageId> messageIds) This method will be called when a redelivery from a negative acknowledge occurs.

org.apache.pulsar.client.internal中MessageId的使用

返回MessageId的org.apache.pulsar.client.internal中的方法

限定符和类型	方法和说明
static MessageId	DefaultImplementation.newMessageId(long ledgerId, long entryId, int partitionIndex)
static MessageId	DefaultImplementation.newMessageIdFromByteArray(byte[] data)
static MessageId	DefaultImplementation.newMessageIdFromByteArrayWithTopic(byte[] data, String topicName)