程序包 org.apache.pulsar.client.api

接口 MessageListener<T>

  • 所有超级接口:
    java.io.Serializable
    @Public
@Stable
public interface MessageListener<T>
extends java.io.Serializable
    A listener that will be called in order for every message received.

    • 方法详细资料

      • received

        void received​(Consumer<T> consumer,
              Message<T> msg)
        This method is called whenever a new message is received.

        Messages are guaranteed to be delivered in order and from the same thread for a single consumer

        This method will only be called once for each message, unless either application or broker crashes.

        Application is responsible for acking message by calling any of consumer acknowledgement methods.

        Application is responsible of handling any exception that could be thrown while processing the message.

        参数:
        consumer - the consumer that received the message
        msg - the message object

      • reachedEndOfTopic

        default void reachedEndOfTopic​(Consumer<T> consumer)
        Get the notification when a topic is terminated.
        参数:
        consumer - the Consumer object associated with the terminated topic