What is this technique called?












2















public static List<Holiday> holidays {
get {
if(holidays == null)
holidays=[Select h.StartTimeInMinutes, h.Name, h.ActivityDate From Holiday h];
return holidays;
}
private set;
}


Reference links if possible.










share|improve this question





























    2















    public static List<Holiday> holidays {
    get {
    if(holidays == null)
    holidays=[Select h.StartTimeInMinutes, h.Name, h.ActivityDate From Holiday h];
    return holidays;
    }
    private set;
    }


    Reference links if possible.










    share|improve this question



























      2












      2








      2








      public static List<Holiday> holidays {
      get {
      if(holidays == null)
      holidays=[Select h.StartTimeInMinutes, h.Name, h.ActivityDate From Holiday h];
      return holidays;
      }
      private set;
      }


      Reference links if possible.










      share|improve this question
















      public static List<Holiday> holidays {
      get {
      if(holidays == null)
      holidays=[Select h.StartTimeInMinutes, h.Name, h.ActivityDate From Holiday h];
      return holidays;
      }
      private set;
      }


      Reference links if possible.







      apex apex-variable lazy-loading






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 9 at 13:48







      John Lima

















      asked Jan 8 at 13:35









      John LimaJohn Lima

      315




      315






















          2 Answers
          2






          active

          oldest

          votes


















          7














          It's called Lazy Loading or Lazy initialization




          Lazy loading is a design pattern to defer initialization until the point at which it is needed.




          Reference




          • Lazy Loading

          • Lazy initialization






          share|improve this answer

































            2














            Well its combination of few, As Robs mentioned its caled lazy loading. Also Its called as Singleton Pattern.



            Singleton pattern makes sure, you have a single instance of a particular instancein the whole transaction(in your case holidays).



            Src: https://developer.salesforce.com/page/Apex_Design_Patterns_-_Singleton






            share|improve this answer



















            • 4





              Singleton is generally used when you want a single instance of a class rather than a property value.

              – Robs
              Jan 8 at 15:17











            Your Answer








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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            7














            It's called Lazy Loading or Lazy initialization




            Lazy loading is a design pattern to defer initialization until the point at which it is needed.




            Reference




            • Lazy Loading

            • Lazy initialization






            share|improve this answer






























              7














              It's called Lazy Loading or Lazy initialization




              Lazy loading is a design pattern to defer initialization until the point at which it is needed.




              Reference




              • Lazy Loading

              • Lazy initialization






              share|improve this answer




























                7












                7








                7







                It's called Lazy Loading or Lazy initialization




                Lazy loading is a design pattern to defer initialization until the point at which it is needed.




                Reference




                • Lazy Loading

                • Lazy initialization






                share|improve this answer















                It's called Lazy Loading or Lazy initialization




                Lazy loading is a design pattern to defer initialization until the point at which it is needed.




                Reference




                • Lazy Loading

                • Lazy initialization







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Jan 8 at 16:59

























                answered Jan 8 at 13:36









                RobsRobs

                2,017530




                2,017530

























                    2














                    Well its combination of few, As Robs mentioned its caled lazy loading. Also Its called as Singleton Pattern.



                    Singleton pattern makes sure, you have a single instance of a particular instancein the whole transaction(in your case holidays).



                    Src: https://developer.salesforce.com/page/Apex_Design_Patterns_-_Singleton






                    share|improve this answer



















                    • 4





                      Singleton is generally used when you want a single instance of a class rather than a property value.

                      – Robs
                      Jan 8 at 15:17
















                    2














                    Well its combination of few, As Robs mentioned its caled lazy loading. Also Its called as Singleton Pattern.



                    Singleton pattern makes sure, you have a single instance of a particular instancein the whole transaction(in your case holidays).



                    Src: https://developer.salesforce.com/page/Apex_Design_Patterns_-_Singleton






                    share|improve this answer



















                    • 4





                      Singleton is generally used when you want a single instance of a class rather than a property value.

                      – Robs
                      Jan 8 at 15:17














                    2












                    2








                    2







                    Well its combination of few, As Robs mentioned its caled lazy loading. Also Its called as Singleton Pattern.



                    Singleton pattern makes sure, you have a single instance of a particular instancein the whole transaction(in your case holidays).



                    Src: https://developer.salesforce.com/page/Apex_Design_Patterns_-_Singleton






                    share|improve this answer













                    Well its combination of few, As Robs mentioned its caled lazy loading. Also Its called as Singleton Pattern.



                    Singleton pattern makes sure, you have a single instance of a particular instancein the whole transaction(in your case holidays).



                    Src: https://developer.salesforce.com/page/Apex_Design_Patterns_-_Singleton







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Jan 8 at 13:38









                    Pranay JaiswalPranay Jaiswal

                    15.3k32653




                    15.3k32653








                    • 4





                      Singleton is generally used when you want a single instance of a class rather than a property value.

                      – Robs
                      Jan 8 at 15:17














                    • 4





                      Singleton is generally used when you want a single instance of a class rather than a property value.

                      – Robs
                      Jan 8 at 15:17








                    4




                    4





                    Singleton is generally used when you want a single instance of a class rather than a property value.

                    – Robs
                    Jan 8 at 15:17





                    Singleton is generally used when you want a single instance of a class rather than a property value.

                    – Robs
                    Jan 8 at 15:17


















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