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These are the user uploaded subtitles that are being translated: 1 1 00:00:03,474 --> 00:00:06,132 JMS, for Java Message Service, 2 2 00:00:06,132 --> 00:00:08,967 allows you to send messages to a message queue 3 3 00:00:08,967 --> 00:00:11,000 in an asynchronous fashion. 4 4 00:00:11,000 --> 00:00:13,500 That's a core part of JAVA EE. 5 5 00:00:14,400 --> 00:00:16,718 Here, they basically provide helper classes 6 6 00:00:16,718 --> 00:00:19,783 to allow you to make use of the Java Message Service, 7 7 00:00:19,783 --> 00:00:22,857 and again, you can reduce your code by over 50% 8 8 00:00:22,857 --> 00:00:26,574 by making use of Spring's JMS integration. 9 9 00:00:26,574 --> 00:00:28,000 And then also, Spring has support 10 10 00:00:28,000 --> 00:00:31,234 for a transaction manager or supporting transactions, 11 11 00:00:31,234 --> 00:00:34,499 and you can do this in a very lightweight fashion. 12 12 00:00:34,499 --> 00:00:36,857 So you can make use of transactions on methods, 13 13 00:00:36,857 --> 00:00:39,519 on database calls, and pretty much anything you want. 14 14 00:00:39,519 --> 00:00:40,700 It's very flexible. 15 15 00:00:40,700 --> 00:00:44,659 And a lot of other projects in the world or on the web, 16 16 00:00:44,659 --> 00:00:48,242 make use of the Spring transaction manager. 17 17 00:00:52,058 --> 00:00:55,299 This is basically the home for the Spring MVC framework. 18 18 00:00:55,299 --> 00:00:57,308 So you can build web applications 19 19 00:00:57,308 --> 00:01:00,472 using the Spring Core, and also making use 20 20 00:01:00,472 --> 00:01:03,749 of Spring Controllers and Spring View, 21 21 00:01:03,749 --> 00:01:06,425 so you have a full MVC layout here, 22 22 00:01:06,425 --> 00:01:10,017 and we'll cover this a good deal later on in the course. 23 23 00:01:10,017 --> 00:01:11,999 They also have other modules here 24 24 00:01:11,999 --> 00:01:13,517 where you can actually interface 25 25 00:01:13,517 --> 00:01:16,958 with other web technologies, like maybe JSF or Struts, 26 26 00:01:16,958 --> 00:01:19,633 you can do that, but pretty much, 27 27 00:01:19,633 --> 00:01:20,691 if you're using Spring already, 28 28 00:01:20,691 --> 00:01:23,125 then it makes sense to just go ahead and use Spring MVC. 29 29 00:01:23,125 --> 00:01:25,775 No need to pull in any other APIs, 30 30 00:01:25,775 --> 00:01:27,975 but you can do that if you want. 31 31 00:01:27,975 --> 00:01:29,783 They also have support from remoting here, 32 32 00:01:29,783 --> 00:01:32,849 so you can actually make use of web remoting, 33 33 00:01:32,849 --> 00:01:34,967 where you can have external clients 34 34 00:01:34,967 --> 00:01:37,672 make calls into the Spring container. 35 35 00:01:37,672 --> 00:01:38,932 Think of this like a way 36 36 00:01:38,932 --> 00:01:41,974 of doing remote procedure calls or RPC, 37 37 00:01:41,974 --> 00:01:44,074 or also doing distributed computed. 38 38 00:01:44,074 --> 00:01:47,741 So that's available also in this web module. 39 39 00:01:49,732 --> 00:01:50,716 Then moving down here, 40 40 00:01:50,716 --> 00:01:53,424 there's this other item here, Instrumentation. 41 41 00:01:53,424 --> 00:01:55,957 So basically, Spring has a lot of sophisticated, 42 42 00:01:55,957 --> 00:01:57,508 fancy technology behind the scenes, 43 43 00:01:57,508 --> 00:01:59,742 and so here, you can actually make use 44 44 00:01:59,742 --> 00:02:02,292 of class loader implementations 45 45 00:02:02,292 --> 00:02:04,743 to work with different apps service. 46 46 00:02:04,743 --> 00:02:07,217 For example, it can be used to create a Java agent, 47 47 00:02:07,217 --> 00:02:08,733 so you can remotely monitor 48 48 00:02:08,733 --> 00:02:12,257 and instrument your application using JMX. 49 49 00:02:12,257 --> 00:02:13,387 As a developer, 50 50 00:02:13,387 --> 00:02:15,630 you wouldn't normally build an agent yourself. 51 51 00:02:15,630 --> 00:02:16,708 You would simply use the agents 52 52 00:02:16,708 --> 00:02:20,625 provided by the Spring team or your app server vendor. 53 53 00:02:20,625 --> 00:02:21,567 But the nice thing about it 54 54 00:02:21,567 --> 00:02:22,717 is to know that behind the scenes, 55 55 00:02:22,717 --> 00:02:24,749 it's making use of some really cool technologies, 56 56 00:02:24,749 --> 00:02:28,243 such as AOP coding, bytecode manipulation, and so on. 57 57 00:02:28,243 --> 00:02:32,410 So that's what you get in the instrumentation model. 58 58 00:02:34,904 --> 00:02:37,324 Spring has support for test-driven development, 59 59 00:02:37,324 --> 00:02:39,199 so the framework includes mock objects 60 60 00:02:39,199 --> 00:02:42,924 for mocking out servlets, JNDI access, and so on. 61 61 00:02:42,924 --> 00:02:45,916 And you can do all of this outside of the container. 62 62 00:02:45,916 --> 00:02:47,766 You can also make use of integration test 63 63 00:02:47,766 --> 00:02:50,830 by creating an application context 64 64 00:02:50,830 --> 00:02:52,358 and wiring up your desired object. 65 65 00:02:52,358 --> 00:02:54,774 So testing is a first-class citizen here 66 66 00:02:54,774 --> 00:02:56,216 when making use of the Spring framework, 67 67 00:02:56,216 --> 00:03:00,341 so there's a lot of good support for it. 68 68 00:03:00,341 --> 00:03:01,174 So that's basically it. 69 69 00:03:01,174 --> 00:03:03,024 So that's a high-level discussion here 70 70 00:03:03,024 --> 00:03:04,682 of the Spring framework. 71 71 00:03:04,682 --> 00:03:06,908 In some of the following videos, we're gonna move forward 72 72 00:03:06,908 --> 00:03:07,924 and we're gonna focus on the work 73 73 00:03:07,924 --> 00:03:09,941 with the Spring Core container. 74 74 00:03:09,941 --> 00:03:13,017 We'll also make use of the Spring Web for doing Spring MVC. 75 75 00:03:13,017 --> 00:03:14,156 And then we'll also make use 76 76 00:03:14,156 --> 00:03:16,157 of Spring Data Access and Integration. 77 77 00:03:16,157 --> 00:03:17,191 So those are the key items 78 78 00:03:17,191 --> 00:03:20,244 that we'll take a look at in this course. 6751