O'Reilly - Java Message Service

More documents

Recommendations

Info

Java Message Service Figure 7.2. Using CLIENT_ACKNOWLEDGE, a JMS consumer can still ensure reliability when bridging to other protocols It is important to know that end-to-end quality of service may not be guaranteed when using bridges to other protocols. In Figure 7.2, the HTTP send may succeed, yet the acknowledge( ) may fail. 7.5 Bridging to Other Messaging Systems JMS does not provide for interoperability between JMS providers. A JMS client from one vendor cannot talk directly to a JMS server from another vendor. Interoperability between vendors was not a goal of the specification's creators, since the architecture of messaging vendors can be so vastly different. One solution to this problem is to build a connector process that is a client of both providers. Its sole purpose is to act as a pass-through mechanism between the two providers, as shown in Figure 7.3. This is one of the reasons why the message itself is required to be interoperable between vendors, as explained in Chapter 3. The message need not be recreated as it is passed along to the other JMS client. Figure 7.3. Connecting from one JMS provider to another is a simple pass-through process that is a client of both End-to-end quality of service should be a consideration when building or using such a bridge. The robustness of JMS vendor-provided bridges may vary in this respect. Since JMS is a standard, and it is easy enough to remove one vendor's implementation and swap in another one, you may ask "Why would anyone want to do this?" The main reason today is to bridge an IBM MQSeries legacy application with an application that is based on a more modern JMS provider. 120
Java Message Service In recognition of this need, most JMS vendors are providing bridges to MQSeries. It's in their best interest to do so, since MQSeries is a strong established player in the messaging market. 121
Page 2 and 3:
Java Message Service Richard Monson
Page 4 and 5:
Chapter 7. Deployment Consideration
Page 6 and 7:
Java Message Service Although this
Page 8 and 9:
Java Message Service Examples devel
Page 10 and 11:
Java Message Service Chapter 1. Und
Page 12 and 13:
Java Message Service Before we disc
Page 14 and 15:
Java Message Service to naming and
Page 16 and 17:
1.3.1 Enterprise Application Integr
Page 18 and 19:
Java Message Service Figure 1.5. Dy
Page 20 and 21:
Java Message Service With J2EE, JSP
Page 22 and 23:
Java Message Service recognition of
Page 24 and 25:
TopicConnectionFactory conFactory =
Page 26 and 27:
Java Message Service Before examini
Page 28 and 29:
Understanding JNDI Java Message Ser
Page 30 and 31:
Java Message Service The TopicConne
Page 32 and 33:
protected void writeMessage(String
Page 34 and 35:
Java Message Service When the Topic
Page 36 and 37:
Java Message Service publishing a m
Page 38 and 39:
Java Message Service Messages come
Page 40 and 41:
3.1.1.3 JMSMessageID Java Message S
Page 42 and 43:
3.2 Properties Java Message Service
Page 44 and 45:
Java Message Service The following
Page 46 and 47:
Notification of certain bids on inv
Page 48 and 49:
Java Message Service When a consume
Page 50 and 51:
UTF-8 Java Message Service UTF-8 en
Page 52 and 53:
Java Message Service Table 3.1 show
Page 54 and 55:
Java Message Service Essentially, M
Page 56 and 57:
3.4.9 Interoperability and Portabil
Page 58 and 59:
4.1.1 Running the B2B Application J
Page 60 and 61:
jne.printStackTrace( ); System.exit
Page 62 and 63:
try { Properties env = new Properti
Page 64 and 65:
Java Message Service Once the Retai
Page 66 and 67:
Java Message Service We can demonst
Page 68 and 69:
Java Message Service publish( ) met
Page 70 and 71:
Java Message Service The receive( )
Page 72 and 73:
4.7 Unsubscribing Java Message Serv
Page 74 and 75: Java Message Service multiple consu
Page 76 and 77: import javax.jms.TopicConnectionFac
Page 78 and 79: } } try { System.out.println("\nRet
Page 80 and 81: TopicConnectionFactory tFactory = n
Page 82 and 83: public QWholesaler(String broker, S
Page 84 and 85: Java Message Service have already p
Page 86 and 87: } if (message != null){ int orderQt
Page 88 and 89: Java Message Service Chapter 6. Gua
Page 90 and 91: 6.2.1 AUTO_ACKNOWLEDGE Java Message
Page 92 and 93: Java Message Service via publish-an
Page 94 and 95: Java Message Service message. If th
Page 96 and 97: Java Message Service QWholesaler an
Page 98 and 99: Java Message Service avoids process
Page 100 and 101: Figure 6.8. Transactional messages
Page 102 and 103: Java Message Service uses a JMS tra
Page 104 and 105: } return; session.commit(); } else
Page 106 and 107: Else, commit (that's what just happ
Page 108 and 109: XAResource jmsXA = session.getXARes
Page 110 and 111: ... } { try { Thread.sleep(10000);
Page 112 and 113: Chapter 7. Deployment Consideration
Page 114 and 115: Java Message Service A vendor may h
Page 116 and 117: Java Message Service that your memo
Page 118 and 119: Java Message Service only really vi
Page 120 and 121: 7.2.5 The Bottom Line Java Message
Page 122 and 123: Java Message Service There are two
Page 126 and 127: Chapter 8. J2EE, EJB, and JMS 8.1 J
Page 128 and 129: Java Message Service JNDI ENC. In a
Page 130 and 131: 8.3 The JMS Resource in J2EE Java M
Page 132 and 133: Java Message Service Although sessi
Page 134 and 135: Figure 8.3. Lifecycle of a message-
Page 136 and 137: Java Message Service With the messa
Page 138 and 139: Java Message Service It's also supp
Page 140 and 141: Java Message Service The FioranoMQ
Page 142 and 143: Java Message Service The iBus//Mobi
Page 144 and 145: 9.6.2 Next Version Java Message Ser
Page 146 and 147: A.1.2 Connection Java Message Servi
Page 148 and 149: A.1.8 JMSException Java Message Ser
Page 150 and 151: } public void setInt(String name, i
Page 152 and 153: } public Message receiveNoWait( ) t
Page 154 and 155: } public void writeInt(int value) t
Page 156 and 157: A.2.6 QueueSender Java Message Serv
Page 158 and 159: } throws JMSException; public Conne
Page 160 and 161: Appendix B. Message Headers Java Me
Page 162 and 163: Java Message Service are delivered
Page 164 and 165: Java Message Service JMSTimestamp P
Page 166 and 167: UTC Java Message Service UTC (Unive
Page 168 and 169: Java Message Service JMSReplyTo Pur
Page 170 and 171: Java Message Service JMSType Purpos
Page 172 and 173: } public void setByteProperty(Strin
Page 174 and 175:
Java Message Service Each of the ac
Page 176 and 177:
JMSXAppID Java Message Service This
Page 178 and 179:
Appendix D. Message Selectors Java
Page 180 and 181:
The BETWEEN operator can be used to
Page 182 and 183:
D.5 Declaring a Message Selector Ja
Page 184:
Colophon Java Message Service Our l
show all

O'Reilly - Java Message Service

Create successful ePaper yourself

Delete template?

Save as template?