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These are the user uploaded subtitles that are being translated: 1 1 00:00:01,240 --> 00:00:02,905 Alright, so we're moving right along here. 2 2 00:00:02,905 --> 00:00:04,697 So, the next step in our dev process 3 3 00:00:04,697 --> 00:00:06,805 is to configure the dependency 4 4 00:00:06,805 --> 00:00:09,870 in our Spring configuration file. 5 5 00:00:09,870 --> 00:00:14,551 So, let's go ahead and open up our applicationContext.xml 6 6 00:00:14,551 --> 00:00:18,864 and we'll set up our dependency injection. 7 7 00:00:18,864 --> 00:00:22,176 So, I'll kinda expand the window here for this file 8 8 00:00:22,176 --> 00:00:25,163 and I'll move down to the bottom 9 9 00:00:25,163 --> 00:00:29,687 and we'll add a new bean entry here for our CricketCoach, 10 10 00:00:29,687 --> 00:00:33,854 So, bean ID, myCricketCoach and for the class, equals, 11 11 00:00:38,254 --> 00:00:41,807 I'll just kinda leave it empty for right now 12 12 00:00:41,807 --> 00:00:43,858 and then I'll come back and use that same technique 13 13 00:00:43,858 --> 00:00:44,691 that I used before, 14 14 00:00:44,691 --> 00:00:46,482 because I need the fully qualified class name 15 15 00:00:46,482 --> 00:00:48,242 of my cricket coach. 16 16 00:00:48,242 --> 00:00:50,109 So again, what I'll do is I'll just kinda 17 17 00:00:50,109 --> 00:00:52,274 move back to that class CricketCoach 18 18 00:00:52,274 --> 00:00:55,565 and I will select it and right click 19 19 00:00:55,565 --> 00:00:57,958 and choose, copy qualified name. 20 20 00:00:57,958 --> 00:00:59,557 So, that will give me the fully qualified name, 21 21 00:00:59,557 --> 00:01:03,607 which the package name dot the class name 22 22 00:01:03,607 --> 00:01:06,144 and then I'll move back over to my configuration file, 23 23 00:01:06,144 --> 00:01:08,569 and I'll just do a right click and choose paste. 24 24 00:01:08,569 --> 00:01:09,402 So there we go. 25 25 00:01:09,402 --> 00:01:13,569 So, that's our fully qualified class name for this example. 26 26 00:01:17,408 --> 00:01:19,103 Alright, so we're doing pretty good here. 27 27 00:01:19,103 --> 00:01:21,996 Now let's go through and actually set up 28 28 00:01:21,996 --> 00:01:23,746 our setter injection. 29 29 00:01:25,773 --> 00:01:28,663 Set up our setter injection 30 30 00:01:28,663 --> 00:01:31,542 and what I'll do here is I'll set up property, 31 31 00:01:31,542 --> 00:01:35,709 I'll say name equals and then I'll set ref equals 32 32 00:01:38,293 --> 00:01:40,340 and I'll go ahead and fill in some other values here. 33 33 00:01:40,340 --> 00:01:42,530 So the name, this is the actual property name here, 34 34 00:01:42,530 --> 00:01:45,064 so the property name is fortuneService 35 35 00:01:45,064 --> 00:01:46,660 and the ref is gonna be 36 36 00:01:46,660 --> 00:01:49,078 the name of myFortuneService 37 37 00:01:49,078 --> 00:01:51,882 and again, the ref of myFortuneService, 38 38 00:01:51,882 --> 00:01:54,474 that's the bean that was defined a little bit earlier 39 39 00:01:54,474 --> 00:01:55,572 in this configuration file, 40 40 00:01:55,572 --> 00:01:56,643 I'll kind of scroll up a bit 41 41 00:01:56,643 --> 00:01:57,801 so you can see it. 42 42 00:01:57,801 --> 00:02:02,193 So, up on line 13 that bean ID of myFortuneService, 43 43 00:02:02,193 --> 00:02:03,704 that's the actual same reference 44 44 00:02:03,704 --> 00:02:07,871 that we'll use when we inject it into our CricketCoach. 45 45 00:02:12,761 --> 00:02:14,710 Okay, great, and then also as a reminder here 46 46 00:02:14,710 --> 00:02:17,481 with that property, name equals fortuneService, 47 47 00:02:17,481 --> 00:02:18,431 the Spring framework 48 48 00:02:18,431 --> 00:02:21,179 will actually call setFortuneService, 49 49 00:02:21,179 --> 00:02:23,052 so again, they'll take that property name, 50 50 00:02:23,052 --> 00:02:25,061 the first character, they'll make it a cap 51 51 00:02:25,061 --> 00:02:28,152 and then they'll call setFortuneService. 52 52 00:02:28,152 --> 00:02:29,943 Alright, so we're pretty good here. 53 53 00:02:29,943 --> 00:02:30,776 Another thing I wanna do 54 54 00:02:30,776 --> 00:02:32,753 is create a new app class for this demo. 55 55 00:02:32,753 --> 00:02:34,893 So, just to kinda start from scratch 56 56 00:02:34,893 --> 00:02:37,440 just so we have a separate area to work in 57 57 00:02:37,440 --> 00:02:39,051 and you know, makes it a little bit simpler 58 58 00:02:39,051 --> 00:02:40,136 for us to work through it. 59 59 00:02:40,136 --> 00:02:43,178 So, I'll create a new class, 60 60 00:02:43,178 --> 00:02:45,087 and I'll call it SetterDemoApp 61 61 00:02:45,087 --> 00:02:47,806 and again, just a class that's gonna have a main method 62 62 00:02:47,806 --> 00:02:49,993 to read the Spring config 63 63 00:02:49,993 --> 00:02:52,001 and perform some operations. 64 64 00:02:52,001 --> 00:02:53,024 So, I'll check the box there 65 65 00:02:53,024 --> 00:02:55,006 for the main method 66 66 00:02:55,006 --> 00:02:57,148 and then I'll keep all the other defaults 67 67 00:02:57,148 --> 00:02:58,815 and I'll hit finish. 68 68 00:03:00,774 --> 00:03:03,193 Alright, so here's our SetterDemoApp. 69 69 00:03:03,193 --> 00:03:06,711 I'll go ahead and clear out this auto-generated stuff 70 70 00:03:06,711 --> 00:03:10,041 and I'll just quickly just write some comments here 71 71 00:03:10,041 --> 00:03:12,432 as far as what we need to do in this app. 72 72 00:03:12,432 --> 00:03:15,559 So again, we're kinda starting from scratch here. 73 73 00:03:15,559 --> 00:03:16,635 So, the first thing we'll do is load 74 74 00:03:16,635 --> 00:03:18,770 the Spring configuration file. 75 75 00:03:18,770 --> 00:03:22,937 We will retrieve the bean from the Spring container. 76 76 00:03:26,579 --> 00:03:30,044 Then we'll call methods on the bean of course, 77 77 00:03:30,044 --> 00:03:31,278 and then finally we'll be nice 78 78 00:03:31,278 --> 00:03:33,611 and we'll close the context. 79 79 00:03:35,517 --> 00:03:37,189 So, that's the basic game plan here 80 80 00:03:37,189 --> 00:03:38,671 for this demo app, 81 81 00:03:38,671 --> 00:03:41,112 and we've seen this before in some previous videos 82 82 00:03:41,112 --> 00:03:43,462 but we're just gonna kind of do it again from scratch 83 83 00:03:43,462 --> 00:03:45,879 just for this setter example. 84 84 00:03:51,054 --> 00:03:51,887 Alrighty here. 85 85 00:03:51,887 --> 00:03:54,350 So, loading the Spring configuration file, 86 86 00:03:54,350 --> 00:03:57,785 so ClassPathXmlApplicationContext, 87 87 00:03:57,785 --> 00:04:01,139 context equals new 88 88 00:04:01,139 --> 00:04:03,151 and I use that big long class name, 89 89 00:04:03,151 --> 00:04:06,484 I'm just gonna do a copy, paste on that. 90 90 00:04:10,636 --> 00:04:13,074 And then I just pass in the actual name of the file 91 91 00:04:13,074 --> 00:04:15,687 that I'm reading in, applicationContext.xml, 92 92 00:04:15,687 --> 00:04:17,414 so there's my context 93 93 00:04:17,414 --> 00:04:19,070 and you can fix the imports here 94 94 00:04:19,070 --> 00:04:22,903 by hovering over the red arrow or the red line 95 95 00:04:23,883 --> 00:04:26,840 and say import and that'll take care of the imports for you. 96 96 00:04:26,840 --> 00:04:28,100 Alright, we're good there. 97 97 00:04:28,100 --> 00:04:31,354 Now let's retrieve the bean again 98 98 00:04:31,354 --> 00:04:33,403 on the white space at the bottom. 99 99 00:04:33,403 --> 00:04:37,570 I'll retrieve the bean by saying CricketCoach, theCoach, 100 100 00:04:40,514 --> 00:04:44,204 equals context.getBean 101 101 00:04:44,204 --> 00:04:48,666 and I give the name of the bean, myCricketCoach 102 102 00:04:48,666 --> 00:04:51,499 comma and then CricketCoach.class. 103 103 00:04:58,519 --> 00:05:00,954 Alright, so now when we retrieve this bean, 104 104 00:05:00,954 --> 00:05:03,301 they'll actually do all the setter injection work 105 105 00:05:03,301 --> 00:05:06,124 behind the scenes for us. 106 106 00:05:06,124 --> 00:05:08,163 And then actually this is kinda cool, 107 107 00:05:08,163 --> 00:05:09,302 let's do this real quick. 108 108 00:05:09,302 --> 00:05:11,689 So, let's do this context.close 109 109 00:05:11,689 --> 00:05:15,542 and that line here for calling methods on the bean, 110 110 00:05:15,542 --> 00:05:19,709 let's just say that we'll come back and do this later 111 111 00:05:21,619 --> 00:05:23,085 because what I wanna do is just check 112 112 00:05:23,085 --> 00:05:25,540 the basic operations here, 113 113 00:05:25,540 --> 00:05:28,166 what Spring is doing behind the scenes 114 114 00:05:28,166 --> 00:05:30,554 because we put some print line methods in there 115 115 00:05:30,554 --> 00:05:32,792 as far as the constructor and the setter 116 116 00:05:32,792 --> 00:05:35,581 and Spring should call those methods automatically 117 117 00:05:35,581 --> 00:05:36,935 and so we should see something 118 118 00:05:36,935 --> 00:05:39,288 when we actually run this program. 119 119 00:05:39,288 --> 00:05:40,513 So, let's go ahead and save this 120 120 00:05:40,513 --> 00:05:41,564 and let's do a right click 121 121 00:05:41,564 --> 00:05:44,397 and choose run as Java application 122 122 00:05:46,551 --> 00:05:48,488 and we beam up the console 123 123 00:05:48,488 --> 00:05:50,492 and oh yeah, looks really good. 124 124 00:05:50,492 --> 00:05:51,325 Look at that. 125 125 00:05:51,325 --> 00:05:52,660 So, we're loading that config file, 126 126 00:05:52,660 --> 00:05:53,973 so it reads the configs, 127 127 00:05:53,973 --> 00:05:57,325 and then here it says we're inside the no-arg constructor 128 128 00:05:57,325 --> 00:05:58,805 and we're inside the setter method 129 129 00:05:58,805 --> 00:06:00,522 and those are those little print line methods 130 130 00:06:00,522 --> 00:06:02,657 that we personally added, 131 131 00:06:02,657 --> 00:06:05,149 so we know that Spring is actually calling 132 132 00:06:05,149 --> 00:06:08,306 these methods for us behind the scenes 133 133 00:06:08,306 --> 00:06:10,314 when they're processing that config file, 134 134 00:06:10,314 --> 00:06:11,619 so this all kinda works out 135 135 00:06:11,619 --> 00:06:14,285 with everything that we've been learning here 136 136 00:06:14,285 --> 00:06:15,118 in the video, 137 137 00:06:15,118 --> 00:06:15,951 so this looks really good. 138 138 00:06:15,951 --> 00:06:18,383 I'm confident now going forward 139 139 00:06:18,383 --> 00:06:20,601 with how this part works out. 140 140 00:06:20,601 --> 00:06:23,541 Alright, so now we can move back into our SetterDemoApp 141 141 00:06:23,541 --> 00:06:25,330 and then we can go ahead and actually write some code 142 142 00:06:25,330 --> 00:06:26,283 for doing this stuff. 143 143 00:06:26,283 --> 00:06:29,355 So, let's go ahead and call the methods now. 144 144 00:06:29,355 --> 00:06:31,638 So, I'm just gonna do a print line on the workout 145 145 00:06:31,638 --> 00:06:32,809 and the fortune. 146 146 00:06:32,809 --> 00:06:34,642 So, sysout print line. 147 147 00:06:35,875 --> 00:06:39,125 Here I'll say theCoach.getDailyFortune, 148 148 00:06:41,411 --> 00:06:43,306 I'm sorry, actually getDailyWorkout 149 149 00:06:43,306 --> 00:06:47,473 and then a similar thing here for theCoach.getDailyFortune. 150 150 00:06:48,597 --> 00:06:52,683 There we go, that's my fortune, alright. 151 151 00:06:52,683 --> 00:06:54,139 Alright, good stuff. 152 152 00:06:54,139 --> 00:06:55,253 So, these are the methods here 153 153 00:06:55,253 --> 00:06:57,337 that we're calling on our coach 154 154 00:06:57,337 --> 00:07:00,358 and we should see again, some information being displayed 155 155 00:07:00,358 --> 00:07:02,775 to the screen when we run it. 156 156 00:07:05,696 --> 00:07:06,797 Alright, so again, we save it, 157 157 00:07:06,797 --> 00:07:09,823 right click, run as Java application 158 158 00:07:09,823 --> 00:07:11,896 and we look at the console window here 159 159 00:07:11,896 --> 00:07:14,602 and oh yeah, looking good. 160 160 00:07:14,602 --> 00:07:16,980 So, those are our diagnostic messages up top 161 161 00:07:16,980 --> 00:07:18,617 and then that's our daily workout, 162 162 00:07:18,617 --> 00:07:20,351 practice fast bowling, 163 163 00:07:20,351 --> 00:07:24,024 and then the item here is our fortune, 164 164 00:07:24,024 --> 00:07:25,326 today is your lucky day. 165 165 00:07:25,326 --> 00:07:26,159 So, this is great, 166 166 00:07:26,159 --> 00:07:29,000 so everything kind of works out as desired. 167 167 00:07:29,000 --> 00:07:31,464 Spring is making use of setter injection, 168 168 00:07:31,464 --> 00:07:33,768 they're injecting that fortune service 169 169 00:07:33,768 --> 00:07:35,074 and then we can use our coach 170 170 00:07:35,074 --> 00:07:37,629 and call methods just like we could do before 171 171 00:07:37,629 --> 00:07:39,527 with all the other coaches like baseball coach 172 172 00:07:39,527 --> 00:07:41,543 and track coach, so again, 173 173 00:07:41,543 --> 00:07:42,749 really good example here. 174 174 00:07:42,749 --> 00:07:44,927 We're just making use of another technique in Spring 175 175 00:07:44,927 --> 00:07:47,523 as far doing setter injection. 176 176 00:07:47,523 --> 00:07:50,291 So again, great job, pat yourself on the back 177 177 00:07:50,291 --> 00:07:51,791 and we're moving. 14971