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Spring Data JPA find by embedded object property
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According to me, Spring doesn't handle all the cases with ease. In your case
the following should do the trick
Page<QueuedBook> findByBookIdRegion(Region region, Pageable pageable);
or
Page<QueuedBook> findByBookId_Region(Region region, Pageable ...
Git - Undo pushed commits
...lution that keeps no traces of the "undo".
NOTE: don't do this if someone allready pulled your change
(I would use this only on my personal repo)
do:
git reset <previous label or sha1>
this will re-checkout all the updates locally (so git status will list all updated files)
then you "do ...
Difference between Divide and Conquer Algo and Dynamic Programming
... there are two key attributes that divide and conquer problem must have in order for dynamic programming to be applicable:
Optimal substructure — optimal solution can be constructed from optimal solutions of its subproblems
Overlapping sub-problems — problem can be broken down into sub...
Adding elements to object
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Your element is not an array, however your cart needs to be an array in order to support many element objects. Code example:
var element = {}, cart = [];
element.id = id;
element.quantity = quantity;
cart.push(element);
If you want cart to be an array of objects in the form { element: { id: 10...
What is the difference between concurrency, parallelism and asynchronous methods?
...lit up into units (units essentially being threads) that can be ran in any order and have a determinate outcome. Parallel means these units/threads are being ran literally at the same time on multiple processors.
– user7917402
Apr 26 '17 at 9:23
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Best Practices for securing a REST API / web service [closed]
...en authentication process.
User own resource ID should be avoided. Use /me/orders instead of /user/654321/orders.
Don't auto-increment IDs. Use UUID instead.
If you are parsing XML files, make sure entity parsing is not enabled to avoid XXE (XML external entity attack).
If you are parsing XML files,...
How To Check If A Key in **kwargs Exists?
...efix variable. If it is given, then its value is being used.
This is generally a compact and readable recipe for writing wrappers for any kind of function: Always just pass-through arguments you don't understand, and don't even know if they exist. If you always pass through *args and **kwargs you m...
Android: Bitmaps loaded from gallery are rotated in ImageView
When I load an image from the media gallery into a Bitmap, everything is working fine, except that pictures that were shot with the camera while holding the phone vertically, are rotated so that I always get a horizontal picture even though it appears vertical in the gallery.
Why is that and how can...
How to convert Strings to and from UTF8 byte arrays in Java
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US-ASCII is actually not a very common encoding nowadays. Windows-1252 and ISO-8859-1 (which are supersets of ASCII) are far more widespread.
– Michael Borgwardt
Oct 9 '09 at 13:26
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Choosing between std::map and std::unordered_map [duplicate]
Now that std has a real hash map in unordered_map , why (or when) would I still want to use the good old map over unordered_map on systems where it actually exists? Are there any obvious situations that I cannot immediately see?
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