Error In Committing Jms Session For Connector
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JMS can be roughly divided into two areas of functionality, namely the production and consumption of messages. The JmsTemplate class is used for message production and synchronous message reception. For asynchronous reception similar to Java EE's message-driven bean style, Spring provides a number of message listener containers that are used to create Message-Driven POJOs (MDPs). Spring also provides a declarative way of creating message listeners. The package org.springframework.jms.core provides the core functionality for using JMS. It contains JMS template classes that simplify the use of https://scn.sap.com/thread/2003417 the JMS by handling the creation and release of resources, much like the JdbcTemplate does for JDBC. The design principle common to Spring template classes is to provide helper methods to perform common operations and for more sophisticated usage, delegate the essence of the processing task to user implemented callback interfaces. The JMS template follows the same design. http://docs.spring.io/spring/docs/current/spring-framework-reference/html/jms.html The classes offer various convenience methods for the sending of messages, consuming a message synchronously, and exposing the JMS session and message producer to the user. The package org.springframework.jms.support provides JMSException translation functionality. The translation converts the checked JMSException hierarchy to a mirrored hierarchy of unchecked exceptions. If there are any provider specific subclasses of the checked javax.jms.JMSException, this exception is wrapped in the unchecked UncategorizedJmsException. The package org.springframework.jms.support.converter provides a MessageConverter abstraction to convert between Java objects and JMS messages. The package org.springframework.jms.support.destination provides various strategies for managing JMS destinations, such as providing a service locator for destinations stored in JNDI. The package org.springframework.jms.annotation provides the necessary infrastructure to support annotation-driven listener endpoints using @JmsListener. The package org.springframework.jms.config provides the parser implementation for the jms namespace as well the java config support to configure listener containers and create listener endpoints. Finally, the package org.springframework.jms.connection provides an implementation of the ConnectionFactory suitable for use in standalone applications. It also contains an implementation of Spring's PlatformTransactionManager for JMS (the cunningly named JmsTrans
Interface Connection All Superinterfaces: AutoCloseable All Known Subinterfaces: QueueConnection, TopicConnection, XAConnection, XAQueueConnection, XATopicConnection public interface Connection extends AutoCloseable A Connection https://docs.oracle.com/javaee/7/api/javax/jms/Connection.html object is a client's active connection to its JMS provider. It https://docs.oracle.com/cd/E19798-01/821-1796/gboyb/index.html typically allocates provider resources outside the Java virtual machine (JVM). Connections support concurrent use. A connection serves several purposes: It encapsulates an open connection with a JMS provider. It typically represents an open TCP/IP socket between a client and the service error in provider software. Its creation is where client authentication takes place. It can specify a unique client identifier. It provides a ConnectionMetaData object. It supports an optional ExceptionListener object. Because the creation of a connection involves setting up authentication and communication, a connection is a relatively heavyweight object. Most clients will do error in committing all their messaging with a single connection. Other more advanced applications may use several connections. The JMS API does not architect a reason for using multiple connections; however, there may be operational reasons for doing so. A JMS client typically creates a connection, one or more sessions, and a number of message producers and consumers. When a connection is created, it is in stopped mode. That means that no messages are being delivered. It is typical to leave the connection in stopped mode until setup is complete (that is, until all message consumers have been created). At that point, the client calls the connection's start method, and messages begin arriving at the connection's consumers. This setup convention minimizes any client confusion that may result from asynchronous message delivery while the client is still in the process of setting itself up. A connection can be started immediately, and the setup can be done a
for Java ClientsPrevious: ChapterĀ 6 Embedding a Message Queue Broker in a Java ClientWarning Messages and Error Codes TableA–1 Message Queue Warning Message Codes Code Message and Description W2000 Message Warning: Received unknown packet: mq-packet-dump. Cause The Message Queue client runtime received an unrecognized Message Queue packet, where mq-packet-dump is replaced with the specific Message Queue packet dump that caused this warning message. The Message Queue broker may not be fully compatible with the client runtime version. W2001 Message Warning: pkt not processed, no message consumer:mq-packet-dump. Cause The Message Queue client runtime received an unexpected Message Queue acknowledge message. The variable mq-packet-dump is replaced with the specific Message Queue packet dump that caused this warning message. W2003 Message Warning: Broker not responding X for Y seconds. Still trying.... Cause The Message Queue client runtime has not received a response from the broker for more than 2 minutes (default). In the actual message, the X variable is replaced with the Message Queue packet type that the client runtime is waiting for, and the Y variable is replaced with the number of seconds that the client runtime has been waiting for the packet. TableA–2 lists the error codes in numerical order. For each code listed, it supplies the error message and a probable cause. Each error message returned has the following format: [Code]: “Message -cause Root-cause-exception-message .” Message text provided for -cause is only appended to the message if there is an exception linked to the JMS exception. For example, a JMS exception with error code C4003 returns the following error message: [C4003]: Error occurred on connection creation [localhost:7676] -