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How do the Proxy, Decorator, Adapter, and Bridge Patterns differ?
... but also abstraction. It adds one more indirection to the delegation. The extra delegation is the bridge. It decouples Adapter even from adapting interface. It increases complexity more than any other of the other wrapping patterns, so apply with care.
Differences in constructors
Pattern differen...
Why are Python's 'private' methods not actually private?
...
The name scrambling is used to ensure that subclasses don't accidentally override the private methods and attributes of their superclasses. It's not designed to prevent deliberate access from outside.
For example:
>>> class Foo(object):
... def __init__(self):
... self....
How Many Seconds Between Two Dates?
... you're correct so I deleted my comment.. one of my "dates" was actually a string. This works perfectly.
– user3344977
Oct 11 '16 at 21:42
add a comment
| ...
Determining 32 vs 64 bit in C++
...esentation. I prefer ENVIRONMENT64 / ENVIRONMENT32. Then I find out what all of the major compilers use for determining if it's a 64 bit environment or not and use that to set my variables.
// Check windows
#if _WIN32 || _WIN64
#if _WIN64
#define ENVIRONMENT64
#else
#define ENVIRONMENT32
#endif...
Storing DateTime (UTC) vs. storing DateTimeOffset
...t cast the DTO to a DT since the DT base is UTC (although this would be an extra step for everyone using the database, and is arguably no simpler than just using UTC time alone)
– iliketocode
Jan 23 '16 at 4:45
...
Combining “LIKE” and “IN” for SQL Server [duplicate]
...ple if your text was 'Hello World' it would find two matches and create an extra row in the results. The first line should be SELECT DISTINCT t.* to avoid this happening.
– Dave Sexton
Nov 16 '15 at 9:55
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Why can't I have “public static const string S = ”stuff"; in my Class?
When trying to compile my class I get an error:
6 Answers
6
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@Scope(“prototype”) bean scope not creating new bean
...nd value of the @Scope annotation.
With this trick you can avoid to write extra code or to inject the ApplicationContext every time that you need a prototype inside a singleton bean.
Example:
@Service
@Scope(value="prototype", proxyMode=ScopedProxyMode.TARGET_CLASS)
public class LoginAction {}...
How do I create a constant in Python?
.... This is the closest equivalent to Java's final. However, it does not actually prevent reassignment:
from typing import Final
a: Final = 1
# Executes fine, but mypy will report an error if you run mypy on this:
a = 2
sha...
Choosing Java vs Python on Google App Engine
...anced and better developed than the Java runtime -- the former has had one extra year to develop and mature, after all.
How things will proceed going forward is of course hard to predict -- demand is probably stronger on the Java side (especially since it's not just about Java, but other languages ...