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What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
... it tells if the child is orphaned. it should also be removed from the database.
A child is orphaned when it can`t be accessed from its parent.
For example, if we remove the Person objects set (setting it to an empty set) or replace it with a new set then the parent can no longer access the childre...
Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
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Updated link: docs.microsoft.com/en-us/dotnet/standard/base-types/…
– Ohad Schneider
Oct 3 '18 at 21:40
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iPhone App Icons - Exact Radius?
...day) for your app and they can all have a different look - not necessarily based on the 512x512 image.
corner radius for the 512x512 icon = 80 (iTunesArtwork)
corner radius for the 1024x1024 icon = 180 (iTunesArtwork Retina)
corner radius for the 57x57 icon = 9 (iPhone/iPod Touch)
corner radius fo...
Specifying and saving a figure with exact size in pixels
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This worked for me, based on your code, generating a 93Mb png image with color noise and the desired dimensions:
import matplotlib.pyplot as plt
import numpy
w = 7195
h = 3841
im_np = numpy.random.rand(h, w)
fig = plt.figure(frameon=False)
f...
First-time database design: am I overengineering? [closed]
...doxy here. This is a reporting server you are building, not a transaction based application backend, which would have a much different profile with respect to the importance of performance or normalization. A database backing a live signup and scheduling application has to be mindful of queries th...
How do I write good/correct package __init__.py files
...t imports are good things, and I strong suggest reconsidering any approach based on systematically bypassing either or both concepts!-)
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Why is arr = [] faster than arr = new Array?
...on so you can understand how much more (or less) processing is required.
Based on the above tokens, we know as a fact ARRAY_INIT will always produce an array. We therefore simply create an array and populate it. As far as ambiguity, the lexical analysis stage has already distinguished ARRAY_INIT...
How do I add a tool tip to a span element?
...ning the tooltip, just use the attribute selector and change the placement based on the attribute's value.
Example here (with code) / Full screen example
Full CSS used in the example - customize this to your needs.
[data-tooltip] {
display: inline-block;
position: relative;
cursor: he...
How to avoid explicit 'self' in Python?
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One extreme example: you can write a class without any knowledge of what base classes it might have, and always know whether you are accessing a member or not:
class A(some_function()):
def f(self):
self.member = 42
self.method()
That's the complete code! (some_function returns the t...
Differences between Octave and MATLAB? [closed]
... management systems, report generation, a much larger community & user base, etc. etc. etc. MATLAB is only a small part of something much larger. Octave is...just Octave.
So, my advice:
Find out if your school will pay for MATLAB. Often they will.
If they don't, and if you can scrape togeth...