How to generate serialVersionUID for Serializable?

Question

I have a class A that extends another class B that implements Serializable interface. I want to automatically generate the serialVersionUID for class A using the Eclipse.

If class A was the class that implements Serializable Eclipse will have a error compilation. Please help me generate it automatically.

class A

public class QueryOptionModel extends BaseModelData {



}

class b - gxt api

public class BaseModelData implements ModelData, Serializable

Solution

If you have a class which implements Serializable interface but doesn't specify a serialVersionUID, you'll get a warning. You can automatically ask Eclipse to fix that warning by clicking on the balloon which pops up on that line. Make sure you don't generate a random but a logical serialVersionUID i.e. 0 or 1 if this is the first draft of your serilizable class.

Comments

[home]

Please provide some further details - which error do you receive?

[Adi Mor]

i don't receive that's the prob

[tartak]

When your class's parent class extends a serializable class, |Eclipse asks you (warning) to provide a serialVersionUID. I don't get your problem

[Adi Mor]

the problem is that eclipse didn't ask me to provide a serialVersionUID

[Adi Mor]

but my class extent a class that implement a the Serializable, and don't show the warning

[Sanjay T. Sharma]

I think you should post the code you are using. I do get a warning on my stock Eclipse installation.

[Uli]

Probably your compiler settings ignore this. You can change this in Eclipse: Open the properties of your project, select Java Compiler => Errors/Warnings and set the item Serializable class without serialVersionUID to Warning or Error.