Converting a pair RDD JavaPairRDD to JavaPairRDD





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}







0















Is there a way to create or convert a pair RDD from one type to another.



Example :



if we wanted to convert



JavaPairRDD<String, Double> to JavaPairRDD<Integer, Double>



here the task is just to change the type of the key.






apache-spark







share|improve this question





























    0















    Is there a way to create or convert a pair RDD from one type to another.



    Example :



    if we wanted to convert



    JavaPairRDD<String, Double> to JavaPairRDD<Integer, Double>



    here the task is just to change the type of the key.






    apache-spark







    share|improve this question

























      0












      0








      0








      Is there a way to create or convert a pair RDD from one type to another.



      Example :



      if we wanted to convert



      JavaPairRDD<String, Double> to JavaPairRDD<Integer, Double>



      here the task is just to change the type of the key.






      apache-spark







      share|improve this question














      Is there a way to create or convert a pair RDD from one type to another.



      Example :



      if we wanted to convert



      JavaPairRDD<String, Double> to JavaPairRDD<Integer, Double>



      here the task is just to change the type of the key.






      apache-spark




      apache-spark






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 24 '18 at 17:13









      unnikunnik

      46711126




      46711126
























          1 Answer
          1






          active

          oldest

          votes


















          1














          U can convert like below



          JavaRDD<String> words = sc.parallelize(Arrays.asList("1","2"));
          

          
JavaPairRDD<String, Double> pairRDD = words.mapToPair(s -> new Tuple2<>(s, 1.0));
          

          
JavaPairRDD<Integer, Double> pairRDD1 = pairRDD.mapToPair(f->new Tuple2<>(Integer.parseInt(f._1), 1.0));





          share|improve this answer
























          • I completely missed that _1 & _2 are the variables. Thank you.

            – unnik
            Nov 24 '18 at 18:12












          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53460561%2fconverting-a-pair-rdd-javapairrddstring-double-to-javapairrddinteger-double%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          U can convert like below



          JavaRDD<String> words = sc.parallelize(Arrays.asList("1","2"));
          

          
JavaPairRDD<String, Double> pairRDD = words.mapToPair(s -> new Tuple2<>(s, 1.0));
          

          
JavaPairRDD<Integer, Double> pairRDD1 = pairRDD.mapToPair(f->new Tuple2<>(Integer.parseInt(f._1), 1.0));





          share|improve this answer
























          • I completely missed that _1 & _2 are the variables. Thank you.

            – unnik
            Nov 24 '18 at 18:12
















          1














          U can convert like below



          JavaRDD<String> words = sc.parallelize(Arrays.asList("1","2"));
          

          
JavaPairRDD<String, Double> pairRDD = words.mapToPair(s -> new Tuple2<>(s, 1.0));
          

          
JavaPairRDD<Integer, Double> pairRDD1 = pairRDD.mapToPair(f->new Tuple2<>(Integer.parseInt(f._1), 1.0));





          share|improve this answer
























          • I completely missed that _1 & _2 are the variables. Thank you.

            – unnik
            Nov 24 '18 at 18:12














          1












          1








          1







          U can convert like below



          JavaRDD<String> words = sc.parallelize(Arrays.asList("1","2"));
          

          
JavaPairRDD<String, Double> pairRDD = words.mapToPair(s -> new Tuple2<>(s, 1.0));
          

          
JavaPairRDD<Integer, Double> pairRDD1 = pairRDD.mapToPair(f->new Tuple2<>(Integer.parseInt(f._1), 1.0));





          share|improve this answer













          U can convert like below



          JavaRDD<String> words = sc.parallelize(Arrays.asList("1","2"));
          

          
JavaPairRDD<String, Double> pairRDD = words.mapToPair(s -> new Tuple2<>(s, 1.0));
          

          
JavaPairRDD<Integer, Double> pairRDD1 = pairRDD.mapToPair(f->new Tuple2<>(Integer.parseInt(f._1), 1.0));






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 24 '18 at 18:05









          NareshNaresh

          456




          456













          • I completely missed that _1 & _2 are the variables. Thank you.

            – unnik
            Nov 24 '18 at 18:12



















          • I completely missed that _1 & _2 are the variables. Thank you.

            – unnik
            Nov 24 '18 at 18:12

















          I completely missed that _1 & _2 are the variables. Thank you.

          – unnik
          Nov 24 '18 at 18:12





          I completely missed that _1 & _2 are the variables. Thank you.

          – unnik
          Nov 24 '18 at 18:12




















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid …



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53460561%2fconverting-a-pair-rdd-javapairrddstring-double-to-javapairrddinteger-double%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          -

          這個網誌中的熱門文章

          Xamarin.form Move up view when keyboard appear

          圖片
          .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 0 I'm trying to build a Chat app UI, the idea of the Layout was pretty simple: When the input bar is focused, keyboard show up and "push" up the chat bar, as it's a grid, the ListView will resize to fit the screen: I update the input bar's margin to "push" it up: NSValue result = (NSValue)args.Notification.UserInfo.ObjectForKey(new NSString(UIKeyboard.FrameEndUserInfoKey)); CGSize keyboardSize = result.RectangleFValue.Size; if (Element != null){ Element.Margin = new Thickness(0, 0, 0,keyboardSize.Height); //push the entry up to keyboard height when keyboard is activated } And this is ...
          閱讀完整內容

          Post-Redirect-Get with Spring WebFlux and Thymeleaf

          圖片
          .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box; } 2 Can someone explain to me how to implement the post-redirect-get pattern in Spring WebFlux and Thymeleaf? What subscribes on the database save method? @GetMapping("/register") public String showRegisterForm(Model model) { model.addAttribute("user", new User()); return "register"; } @PostMapping public String processRegisterForm(@Valid User user, BindingResult bindingResult) { if (bindingResult.hasErrors()) { return "register"; } else { userRepository.save(user); //what subscribes on this? //how to redirect on e.g. "/login"? ...
          閱讀完整內容

          Anylogic : not able to use stopDelay()

          圖片
          -2 I am building a railway station model. I want a train to depart when I click a button. I want to call stopDelay() for that but I am not sure how to do that and from which place. anylogic share | improve this question asked Nov 23 '18 at 10:12 Anupam Singh Anupam Singh 1 Hi Anupam, welcome to SOF. Please check how to ask good questions, see link below. Your question is...
          閱讀完整內容