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Spring - @Transactional - What happens in background?
...pic. The Spring reference doc devotes multiple chapters to it. I recommend reading the ones on Aspect-Oriented Programming and Transactions, as Spring's declarative transaction support uses AOP at its foundation.
But at a very high level, Spring creates proxies for classes that declare @Transaction...
How do I limit the number of results returned from grep?
...m 10 PATTERN [FILE]
From man grep:
-m NUM, --max-count=NUM
Stop reading a file after NUM matching lines. If the input is
standard input from a regular file, and NUM matching lines are
output, grep ensures that the standard input is positioned to
just after...
Why does 'continue' behave like 'break' in a Foreach-Object?
...lines of code preceding my if statement into a single long line of hard to read code. However, that would work for me in other situations.
– Justin Dearing
Oct 13 '11 at 21:07
...
NOT using repository pattern, use the ORM as is (EF)
... syntax?
LINQ and EF were developed so you could do neat stuff with it to read and traverse object graphs. Creating and maintain a repository that can give you the same flexibility to do that is a monstrous task. In my experience any time I've created a repository I've ALWAYS had business logic lea...
Extracting the last n characters from a ruby string
...
+1... I think this way is easier to read than string.reverse[0..n].reverse, which gives me a second of "wait, why is he doing that?" (or would if I weren't reading it in the context of this question)
– Arkaaito
Feb 1 '10 a...
What exactly is Spring Framework for? [closed]
...r;
This way when the view is created it magically will have a UserLister ready to work.
List<User> users = userLister.getUsers(); // This will actually work
// without adding any line of code
It is great! Isn't it?
What if you want to use anot...
Difference between a user and a schema in Oracle?
... or privileges to create objects.
Next, we create some roles to allow read-write and read-only access.
CREATE ROLE schema_rw_role;
CREATE ROLE schema_ro_role;
We want to give our application user read-write access to the schema
objects, so we grant the relevant role.
GRANT schema_rw_r...
Print new output on same line [duplicate]
...ks for the quick response and update. That makes so much more sense now. I read the help function a dozen times and wasn't obviously paying attention. :)
– onxx
Aug 20 '12 at 4:39
...
urllib2.HTTPError: HTTP Error 403: Forbidden
... page = urllib2.urlopen(req)
except urllib2.HTTPError, e:
print e.fp.read()
content = page.read()
print content
Actually, it works with just this one additional header:
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
...
ImageConvertor 扩展：免费图像转换器，支持JPG/PNG/WEBP格式转换和图像处...
...
属性
ImageWidth 图像宽度(路径) {:.number .read-only}
获取指定图像文件的宽度（像素）。
路径：文本类型，图像文件路径
返回值：数字类型，图像宽度
ImageHeight 图像高度(路径) {:.number .read-only...