Spring MVC Generics Object Binding/Type Conversion












0














I'm looking for a way to wrap my models or DTOs with a generic class to add a 'selected' Boolean property and be able to bind the object in my POST method controller.



Like this:



public class RowForm<T> implements Serializable {

private static final long serialVersionUID = 1L;
private T model;
private Boolean selected=false;

public RowForm() {
super();
}

public RowForm(T model) {
super();
this.model = model;
}

public T getModel() {
return model;
}

public void setModel(T model) {
this.model = model;
}

public Boolean getSelected() {
return selected;
}

public void setSelected(Boolean selected) {
this.selected = selected;
}

}


public class ProductsForm implements Serializable{

private static final long serialVersionUID = 1L;
private RowForm<Product> row;

//...other stuff and getters/setters
}


and use it like this:



    @PostMapping ("/postProduct")
public String POSTproduct(Model model, @ModelAttribute ProductsForm pf)
{
....
}


But I'm stuck with the conversion...



When I call pf.getRow() it returns a plain Object, not a RowForm<Product>.



How can I implement a ConversionService/PropertyEditor to bind my posted data to my extended generic object?










share|improve this question





























    0














    I'm looking for a way to wrap my models or DTOs with a generic class to add a 'selected' Boolean property and be able to bind the object in my POST method controller.



    Like this:



    public class RowForm<T> implements Serializable {

    private static final long serialVersionUID = 1L;
    private T model;
    private Boolean selected=false;

    public RowForm() {
    super();
    }

    public RowForm(T model) {
    super();
    this.model = model;
    }

    public T getModel() {
    return model;
    }

    public void setModel(T model) {
    this.model = model;
    }

    public Boolean getSelected() {
    return selected;
    }

    public void setSelected(Boolean selected) {
    this.selected = selected;
    }

    }


    public class ProductsForm implements Serializable{

    private static final long serialVersionUID = 1L;
    private RowForm<Product> row;

    //...other stuff and getters/setters
    }


    and use it like this:



        @PostMapping ("/postProduct")
    public String POSTproduct(Model model, @ModelAttribute ProductsForm pf)
    {
    ....
    }


    But I'm stuck with the conversion...



    When I call pf.getRow() it returns a plain Object, not a RowForm<Product>.



    How can I implement a ConversionService/PropertyEditor to bind my posted data to my extended generic object?










    share|improve this question



























      0












      0








      0







      I'm looking for a way to wrap my models or DTOs with a generic class to add a 'selected' Boolean property and be able to bind the object in my POST method controller.



      Like this:



      public class RowForm<T> implements Serializable {

      private static final long serialVersionUID = 1L;
      private T model;
      private Boolean selected=false;

      public RowForm() {
      super();
      }

      public RowForm(T model) {
      super();
      this.model = model;
      }

      public T getModel() {
      return model;
      }

      public void setModel(T model) {
      this.model = model;
      }

      public Boolean getSelected() {
      return selected;
      }

      public void setSelected(Boolean selected) {
      this.selected = selected;
      }

      }


      public class ProductsForm implements Serializable{

      private static final long serialVersionUID = 1L;
      private RowForm<Product> row;

      //...other stuff and getters/setters
      }


      and use it like this:



          @PostMapping ("/postProduct")
      public String POSTproduct(Model model, @ModelAttribute ProductsForm pf)
      {
      ....
      }


      But I'm stuck with the conversion...



      When I call pf.getRow() it returns a plain Object, not a RowForm<Product>.



      How can I implement a ConversionService/PropertyEditor to bind my posted data to my extended generic object?










      share|improve this question















      I'm looking for a way to wrap my models or DTOs with a generic class to add a 'selected' Boolean property and be able to bind the object in my POST method controller.



      Like this:



      public class RowForm<T> implements Serializable {

      private static final long serialVersionUID = 1L;
      private T model;
      private Boolean selected=false;

      public RowForm() {
      super();
      }

      public RowForm(T model) {
      super();
      this.model = model;
      }

      public T getModel() {
      return model;
      }

      public void setModel(T model) {
      this.model = model;
      }

      public Boolean getSelected() {
      return selected;
      }

      public void setSelected(Boolean selected) {
      this.selected = selected;
      }

      }


      public class ProductsForm implements Serializable{

      private static final long serialVersionUID = 1L;
      private RowForm<Product> row;

      //...other stuff and getters/setters
      }


      and use it like this:



          @PostMapping ("/postProduct")
      public String POSTproduct(Model model, @ModelAttribute ProductsForm pf)
      {
      ....
      }


      But I'm stuck with the conversion...



      When I call pf.getRow() it returns a plain Object, not a RowForm<Product>.



      How can I implement a ConversionService/PropertyEditor to bind my posted data to my extended generic object?







      spring spring-mvc generics type-conversion






      share|improve this question















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      edited Nov 12 '18 at 19:03

























      asked Nov 12 '18 at 0:01









      G. Medici

      313




      313
























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          Why not use a abstract base class with the selected property, and extend it for your DTOs?






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            1 Answer
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            0














            Why not use a abstract base class with the selected property, and extend it for your DTOs?






            share|improve this answer


























              0














              Why not use a abstract base class with the selected property, and extend it for your DTOs?






              share|improve this answer
























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                0






                Why not use a abstract base class with the selected property, and extend it for your DTOs?






                share|improve this answer












                Why not use a abstract base class with the selected property, and extend it for your DTOs?







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 19 '18 at 22:17









                John Thompson

                32826




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