How can we maintain insertion order for set when using spring mvc and hibernate with annotation

Asked Apr 23 '18 at 06:03

Active Apr 23 '18 at 06:21

Viewed 113 times

My requirement is to convert an image to thumbnail, the first image selected by user should get converted to thumbnail, but as of now since i am using set it is not happening. How can i implement this with spring mvc and hibernate. I tried using like the code mentioned below; but it threw error.

Set<UserDefinedClass> object = new LinkedHashSet<UserDefinedClass>

this is done in POJO.

edited Apr 23 '18 at 06:21

asked Apr 23 '18 at 06:03

user3292629

thanks for the reply but this is not my issue. i want to know how to take the first image selected by user for converting into thumbnail. Thumbnail conversion code already i have and working fine. – user3292629 Apr 23 '18 at 06:17
updated your code in question. The question seems to be about choosing right data structure. – Sangam Belose Apr 23 '18 at 06:17
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You should update the relevant code inside the question. What kind exception you get.? – Sangam Belose Apr 23 '18 at 06:23
For maintaing insertion order you have chosen the LinkedHashset .Now what do you exactly want from your frameworks? – this_is_om_vm Apr 23 '18 at 06:23
i have put LinkedHashSet but it is not taking the first image still. – user3292629 Apr 23 '18 at 06:35
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What error do you get exactly? – dunni Apr 23 '18 at 09:08
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And how does the code look like where you try to retrieve the first image? You should post all relevant information, otherwise it's not possible to help you. – dunni Apr 23 '18 at 09:09

How can we maintain insertion order for set when using spring mvc and hibernate with annotation

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