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sorting the serialized objects in xml [message #1741633]

Fri, 26 August 2016 09:17

Eclipse User

Hi,
I have designed an ecore model which has the class Student which contains the parameter student-name .Now I have around 10 student instances and when i serialize the objects into xml i want the nodes to be sorted based on the student-name. So how can we sort the xml serialized object based on student-name in xml.

OR If the xml has serialized object how can we sort based on the name and save the xml file.

Re: sorting the serialized objects in xml [message #1741639 is a reply to message #1741633]

Fri, 26 August 2016 09:41

Eclipse User

Hello,

During serialization, the order of the list is kept. So I think you just have to use a simple Java comparator to sort the EList that contains your students :

Collections.sort(lesson.getStudents(), new Comparator<Student>()
{
	@Override
	public int compare(Student o1, Student o2)
	{
		return o1.getName().compareTo(o2.getName());
	}
});

Now the question is : when do you want the sort append ? Automatically when you add a student, or when you execute a command ? Or just before a save ?

Re: sorting the serialized objects in xml [message #1741640 is a reply to message #1741639]

Fri, 26 August 2016 09:46

Eclipse User

when we execute the command .Also we are using transaction editing domain and for sorting we are using Ecollection.sort but it is throwing unsupported operation exception.

Re: sorting the serialized objects in xml [message #1741641 is a reply to message #1741640]

Fri, 26 August 2016 10:00

Eclipse User

I never used ECollections.sort, but I suppose the use is the same than Collections.sort

I don't now why you got an UnsuportedOperationException, you should post your code here, and the stack trace if relevant.

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