Spring MVC Generics Object Binding/Type Conversion

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?

edited Nov 12 '18 at 19:03

asked Nov 12 '18 at 0:01

G. Medici

313

add a comment |

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?

edited Nov 12 '18 at 19:03

asked Nov 12 '18 at 0:01

G. Medici

313

add a comment |

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?

edited Nov 12 '18 at 19:03

asked Nov 12 '18 at 0:01

G. Medici

313

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

edited Nov 12 '18 at 19:03

asked Nov 12 '18 at 0:01

G. Medici

313

edited Nov 12 '18 at 19:03

asked Nov 12 '18 at 0:01

G. Medici

313

edited Nov 12 '18 at 19:03

asked Nov 12 '18 at 0:01

G. Medici

313

asked Nov 12 '18 at 0:01

G. Medici

313

asked Nov 12 '18 at 0:01

G. Medici

313

add a comment |

1 Answer
1

active

oldest

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

answered Nov 19 '18 at 22:17

John Thompson

32826

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

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

answered Nov 19 '18 at 22:17

John Thompson

32826

add a comment |

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

answered Nov 19 '18 at 22:17

John Thompson

32826

add a comment |

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

answered Nov 19 '18 at 22:17

John Thompson

32826

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

answered Nov 19 '18 at 22:17

John Thompson

32826

answered Nov 19 '18 at 22:17

John Thompson

32826

answered Nov 19 '18 at 22:17

John Thompson

32826

answered Nov 19 '18 at 22:17

John Thompson

32826

add a comment |

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