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What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
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This may help to understand:
public class Customer {
// This field doesn't exist in the database
// It is simulated with a SQL query
// "OO speak": Customer owns the orders
private List<Order> orders;
}
public class Order {
// This field actually exists in the DB
...
Simple explanation of clojure protocols
... understand clojure protocols and what problem they are supposed to solve. Does anyone have a clear explanation of the whats and whys of clojure protocols?
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Capture Image from Camera and Display in Activity
... Also note that Bitmap photo = (Bitmap) data.getExtras().get("data"); does not grab the image that was taken. It grabs a thumbnail of the image that was taken.
– Billy Coover
Feb 4 '14 at 6:19
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What is Hindley-Milner?
... length of the list independent of the type of the elements, or a function does a binary-tree lookup independent of the type of keys stored in the tree.
Sometimes a function or value can have more than one type, as in the example of the length function: it can be "list of integers to integer", "list...
Simple Digit Recognition OCR in OpenCV-Python
...his).
To prepare the data for training, I made a small code in OpenCV. It does following things:
It loads the image.
Selects the digits ( obviously by contour finding and applying constraints on area and height of letters to avoid false detections).
Draws the bounding rectangle around one letter ...
Java to Clojure rewrite
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What aspects of Java does your current project include? Logging, Database transactions, Declarative transactions/EJB, web layer (you mentioned JSP, servlets) etc. I have noticed the Clojure eco-system has various micro-frameworks and libraries wi...
Rebasing a Git merge commit
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I tried the -p option, and it does indeed leave the commit history as I wanted, but it forces me to resolve the conflicts again, even in files which were not edited in origin/master. As of your first suggestion, which would be the precise sequence of comm...
Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
...nd of renders it useless since your alternate approach is much simpler and does not require tuples.
– chiccodoro
Nov 13 '14 at 11:47
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Async/await vs BackgroundWorker
...nded to be non-blocking operations. An await expression in an async method doesn’t block the current thread while the awaited task is running. Instead, the expression signs up the rest of the method as a continuation and returns control to the caller of the async method.
The async and await keywor...
How to find the operating system version using JavaScript?
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Nice solution, but unfortunately doesn't work correctly for Opera Next (en.wikipedia.org/wiki/…). It is detected as Chrome. In order to check for it, get index of 'OPR' in user agent.
– Eadel
Oct 29 '14 at 8:35
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