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What issues should be considered when overriding equals and hashCode in Java?
...store. These proxies are implemented as subclasses of your own class. This means thatthis.getClass() == o.getClass() will return false. For example:
Person saved = new Person("John Doe");
Long key = dao.save(saved);
dao.flush();
Person retrieved = dao.retrieve(key);
saved.getClass().equals(retrieve...
When should I use h:outputLink instead of h:commandLink?
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@BalusC What exactly you mean by "fullworthy HTML" in the first line of your answer ?
– Geek
Oct 25 '12 at 13:54
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Rendering HTML inside textarea
...te (there's an inherit state as well as true and false) , and I think that means that specifying a value is mandatory, although I can't find a definitive bit of the spec to confirm this. MDN seems to agree though.
– Tim Down
Jul 9 '13 at 14:10
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How to override the copy/deepcopy operations for a Python object?
... Why self.foo = deepcopy(self.foo, memo)... ? Don't you really mean newone.foo = ...?
– Alois Mahdal
Sep 13 '13 at 13:36
4
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Database, Table and Column Naming Conventions? [closed]
... be shortened to "Invoices," which is what I prefer. You probably instead meant "InvoiceTable," which makes sense to shorten "Invoice."
– Derek
Mar 5 '13 at 14:53
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Why are dashes preferred for CSS selectors / HTML attributes?
...plains it comprehensively.
CSS is a hyphen-delimited syntax. By this I mean we write things like font-size, line-height, border-bottom etc.
So:
You just shouldn’t mix syntaxes: it’s inconsistent.
share
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registerForRemoteNotificationTypes: is not supported in iOS 8.0 and later
...id technique and results in far fewer annoyed developers. Apple's attitude means it's a pain to support iOS apps, where the effort required to keep the same level of functionality over as little as 2 years is non-trivial.
– robbie_c
Nov 7 '14 at 11:55
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Why use symbols as hash keys in Ruby?
...ly stored once.
Symbols in Ruby are basically "immutable strings" .. that means that they can not be changed, and it implies that the same symbol when referenced many times throughout your source code, is always stored as the same entity, e.g. has the same object id.
Strings on the other hand are...
Proper Repository Pattern Design in PHP?
...and mockable.
The controller should have no idea where the data is stored (meaning it can be changed).
Example to show a SQL implementation (most common).
For maximum performance, controllers should only receive the data they need—no extra fields.
Implementation should leverage some type of data m...
Use numpy array in shared memory for multiprocessing
... the parent's memory space. In the context of Python multiprocessing, this means it shares all module-level variables; note that this does not hold for arguments that you explicitly pass to your child processes or to the functions you call on a multiprocessing.Pool or so.
A simple example:
import ...