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What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?
...d you want to use one over the other?" part of your question.
Basics
The base interface you choose for your repository has two main purposes. First, you allow the Spring Data repository infrastructure to find your interface and trigger the proxy creation so that you inject instances of the interfa...
Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
... up multiple setting files (development, production, ..) that include some base settings. Cannot succeed though. When I try to run ./manage.py runserver I am getting the following error:
...
In C++, what is a virtual base class?
I want to know what a " virtual base class " is and what it means.
11 Answers
11
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C# Error: Parent does not contain a constructor that takes 0 arguments
...ct the situation, you need to add an explicit call:
public Child(int i) : base(i)
{
Console.WriteLine("child");
}
Or, you can just add a parameterless parent constructor:
protected Parent() { }
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Compare object instances for equality by their attributes
...le objects, and then compare results
from collections.abc import Iterable
BASE_TYPES = [str, int, float, bool, type(None)]
def base_typed(obj):
"""Recursive reflection method to convert any object property into a comparable form.
"""
T = type(obj)
from_numpy = T.__module__ == 'num...
Google Authenticator implementation in Python
...ected with incorrect value of secret key (it must be correct parameter for base64.b32decode() function).
Below I post full working solution with explanation on how to use it.
Code
The following code is enough. I have also uploaded it to GitHub as separate module called onetimepass (available here...
Asynchronously load images with jQuery
...here are actually two options to use AJAX style for this:
Solution 1
Use Base64 image data and a REST image service. If you have your own webservice, you can add a JSP/PHP REST script that offers images in Base64 encoding. Now how is that useful? I came across a cool new syntax for image encoding:...
How can I know if a branch has been already merged into master?
...
You can use the git merge-base command to find the latest common commit between the two branches. If that commit is the same as your branch head, then the branch has been completely merged.
Note that git branch -d does this sort of thing already b...
eclipse升级后启动失败：Heap堆内存不足 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...or
!STACK 1
java.lang.OutOfMemoryError: Java heap space
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.addWaiter(AbstractQueuedSynchronizer.java:651)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchron...
What is the difference between lemmatization vs stemming?
...nal forms and sometimes derivationally related forms of a word to a common base form.
However, the two words differ in their flavor. Stemming usually refers to a crude heuristic process that chops off the ends of words in the hope of achieving this goal correctly most of the time, and often includes...