Object1's Property has Object1












0














Is this bad practice?



Object1 is an instantiated version of Object.



Object1 has a property called "Example2" which is also an object. The Example2 object has an Object and that object is Object1.



E.g.



Example2 example = new Example2(this);


Where this is stored as an Object variable.



I'm sorry if I'm not explaining myself. This has made it really hard to google.



Thanks!










share|improve this question




















  • 1




    Please provide a complete code sample. In general - as always - "it depends".
    – daniu
    Nov 23 '18 at 7:41










  • No, this is quite common. A sub-component holding the reference of the main component isn't bad practice. Sometimes in MVC, sub-controllers do hold the reference of the main/parent controller.
    – Jai
    Nov 23 '18 at 7:42












  • @daniu I would love to provide a code sample, but I'm currently planning and as such don't have any.
    – Russell Bloxwich
    Nov 23 '18 at 7:43










  • You can provide a UML class diagram here as well
    – deHaar
    Nov 23 '18 at 7:52










  • "I'm sorry if I'm not explaining myself. This has made it really hard to google." - It is also making it impossible to produce a meaningful answer. If you can't explain yourself clearly, or provide an example, how are we supposed to know what you are asking?
    – Stephen C
    Nov 23 '18 at 7:52
















0














Is this bad practice?



Object1 is an instantiated version of Object.



Object1 has a property called "Example2" which is also an object. The Example2 object has an Object and that object is Object1.



E.g.



Example2 example = new Example2(this);


Where this is stored as an Object variable.



I'm sorry if I'm not explaining myself. This has made it really hard to google.



Thanks!










share|improve this question




















  • 1




    Please provide a complete code sample. In general - as always - "it depends".
    – daniu
    Nov 23 '18 at 7:41










  • No, this is quite common. A sub-component holding the reference of the main component isn't bad practice. Sometimes in MVC, sub-controllers do hold the reference of the main/parent controller.
    – Jai
    Nov 23 '18 at 7:42












  • @daniu I would love to provide a code sample, but I'm currently planning and as such don't have any.
    – Russell Bloxwich
    Nov 23 '18 at 7:43










  • You can provide a UML class diagram here as well
    – deHaar
    Nov 23 '18 at 7:52










  • "I'm sorry if I'm not explaining myself. This has made it really hard to google." - It is also making it impossible to produce a meaningful answer. If you can't explain yourself clearly, or provide an example, how are we supposed to know what you are asking?
    – Stephen C
    Nov 23 '18 at 7:52














0












0








0







Is this bad practice?



Object1 is an instantiated version of Object.



Object1 has a property called "Example2" which is also an object. The Example2 object has an Object and that object is Object1.



E.g.



Example2 example = new Example2(this);


Where this is stored as an Object variable.



I'm sorry if I'm not explaining myself. This has made it really hard to google.



Thanks!










share|improve this question















Is this bad practice?



Object1 is an instantiated version of Object.



Object1 has a property called "Example2" which is also an object. The Example2 object has an Object and that object is Object1.



E.g.



Example2 example = new Example2(this);


Where this is stored as an Object variable.



I'm sorry if I'm not explaining myself. This has made it really hard to google.



Thanks!







java oop object






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 23 '18 at 7:42









LuCio

2,7441823




2,7441823










asked Nov 23 '18 at 7:39









Russell BloxwichRussell Bloxwich

31




31








  • 1




    Please provide a complete code sample. In general - as always - "it depends".
    – daniu
    Nov 23 '18 at 7:41










  • No, this is quite common. A sub-component holding the reference of the main component isn't bad practice. Sometimes in MVC, sub-controllers do hold the reference of the main/parent controller.
    – Jai
    Nov 23 '18 at 7:42












  • @daniu I would love to provide a code sample, but I'm currently planning and as such don't have any.
    – Russell Bloxwich
    Nov 23 '18 at 7:43










  • You can provide a UML class diagram here as well
    – deHaar
    Nov 23 '18 at 7:52










  • "I'm sorry if I'm not explaining myself. This has made it really hard to google." - It is also making it impossible to produce a meaningful answer. If you can't explain yourself clearly, or provide an example, how are we supposed to know what you are asking?
    – Stephen C
    Nov 23 '18 at 7:52














  • 1




    Please provide a complete code sample. In general - as always - "it depends".
    – daniu
    Nov 23 '18 at 7:41










  • No, this is quite common. A sub-component holding the reference of the main component isn't bad practice. Sometimes in MVC, sub-controllers do hold the reference of the main/parent controller.
    – Jai
    Nov 23 '18 at 7:42












  • @daniu I would love to provide a code sample, but I'm currently planning and as such don't have any.
    – Russell Bloxwich
    Nov 23 '18 at 7:43










  • You can provide a UML class diagram here as well
    – deHaar
    Nov 23 '18 at 7:52










  • "I'm sorry if I'm not explaining myself. This has made it really hard to google." - It is also making it impossible to produce a meaningful answer. If you can't explain yourself clearly, or provide an example, how are we supposed to know what you are asking?
    – Stephen C
    Nov 23 '18 at 7:52








1




1




Please provide a complete code sample. In general - as always - "it depends".
– daniu
Nov 23 '18 at 7:41




Please provide a complete code sample. In general - as always - "it depends".
– daniu
Nov 23 '18 at 7:41












No, this is quite common. A sub-component holding the reference of the main component isn't bad practice. Sometimes in MVC, sub-controllers do hold the reference of the main/parent controller.
– Jai
Nov 23 '18 at 7:42






No, this is quite common. A sub-component holding the reference of the main component isn't bad practice. Sometimes in MVC, sub-controllers do hold the reference of the main/parent controller.
– Jai
Nov 23 '18 at 7:42














@daniu I would love to provide a code sample, but I'm currently planning and as such don't have any.
– Russell Bloxwich
Nov 23 '18 at 7:43




@daniu I would love to provide a code sample, but I'm currently planning and as such don't have any.
– Russell Bloxwich
Nov 23 '18 at 7:43












You can provide a UML class diagram here as well
– deHaar
Nov 23 '18 at 7:52




You can provide a UML class diagram here as well
– deHaar
Nov 23 '18 at 7:52












"I'm sorry if I'm not explaining myself. This has made it really hard to google." - It is also making it impossible to produce a meaningful answer. If you can't explain yourself clearly, or provide an example, how are we supposed to know what you are asking?
– Stephen C
Nov 23 '18 at 7:52




"I'm sorry if I'm not explaining myself. This has made it really hard to google." - It is also making it impossible to produce a meaningful answer. If you can't explain yourself clearly, or provide an example, how are we supposed to know what you are asking?
– Stephen C
Nov 23 '18 at 7:52












1 Answer
1






active

oldest

votes


















1














It's not bad practice in general, but I would consider it a code smell worth looking into. My reasoning for this is that it sounds like it might break separation of concerns: your Example class clearly needs something from the class referred to by this, eg



class MyService {
private Controller controller;

public MyService() {
controller = new MyController(this);
}
}


A controller having a reference to a service is common, but the other way around much less so.



I'm sure there are valid examples, but I'd say a cyclic reference is not usually a good sign.






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    It's not bad practice in general, but I would consider it a code smell worth looking into. My reasoning for this is that it sounds like it might break separation of concerns: your Example class clearly needs something from the class referred to by this, eg



    class MyService {
    private Controller controller;

    public MyService() {
    controller = new MyController(this);
    }
    }


    A controller having a reference to a service is common, but the other way around much less so.



    I'm sure there are valid examples, but I'd say a cyclic reference is not usually a good sign.






    share|improve this answer


























      1














      It's not bad practice in general, but I would consider it a code smell worth looking into. My reasoning for this is that it sounds like it might break separation of concerns: your Example class clearly needs something from the class referred to by this, eg



      class MyService {
      private Controller controller;

      public MyService() {
      controller = new MyController(this);
      }
      }


      A controller having a reference to a service is common, but the other way around much less so.



      I'm sure there are valid examples, but I'd say a cyclic reference is not usually a good sign.






      share|improve this answer
























        1












        1








        1






        It's not bad practice in general, but I would consider it a code smell worth looking into. My reasoning for this is that it sounds like it might break separation of concerns: your Example class clearly needs something from the class referred to by this, eg



        class MyService {
        private Controller controller;

        public MyService() {
        controller = new MyController(this);
        }
        }


        A controller having a reference to a service is common, but the other way around much less so.



        I'm sure there are valid examples, but I'd say a cyclic reference is not usually a good sign.






        share|improve this answer












        It's not bad practice in general, but I would consider it a code smell worth looking into. My reasoning for this is that it sounds like it might break separation of concerns: your Example class clearly needs something from the class referred to by this, eg



        class MyService {
        private Controller controller;

        public MyService() {
        controller = new MyController(this);
        }
        }


        A controller having a reference to a service is common, but the other way around much less so.



        I'm sure there are valid examples, but I'd say a cyclic reference is not usually a good sign.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 23 '18 at 7:57









        daniudaniu

        7,30021635




        7,30021635






























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