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What's is the difference between include and extend in use case diagram?
...lmkvist, Use Cases: Patterns and Blueprints. Addison-Wesley, 2004).
This reads to me as:
Include = reuse of functionality (i.e. the included
Java: Static Class?
...static methods.
But beware of what this does for testability, I recommend reading this article
Static Methods are Death to Testability
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Is there a naming convention for MySQL?
...ueries in a short amount of time is better having all simple to write (and read).
Avoid prefixes. Unless you are using the same database for tables of different applications, don't use prefixes. This only add more verbosity to your queries. There are situations when this could be useful, for example...
Casting vs using the 'as' keyword in the CLR
...It's possible for the "if" to pass but then the cast to fail, if another thread changes the value of randomObject between the two.
If randomObject really should be an instance of TargetType, i.e. if it's not, that means there's a bug, then casting is the right solution. That throws an exception imme...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...AaronDigulla everytime I have to go through a OneToMany mappings I came to read this answer, probably the best on the subject on SO.
– Eugene
Nov 2 '12 at 7:14
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How to find out if a Python object is a string?
..., the question actually says "either regular or Unicode". I guess I didn't read it properly.
– clacke
Jan 4 at 21:27
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Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?
.... Type '\c' to clear the current input statement.
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> update user set authentication_string=password('password') where ...
How to work with Git branches and Rails migrations
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If you have a large database that you can't readily reproduce, then I'd recommend using the normal migration tools. If you want a simple process, this is what I'd recommend:
Before switching branches, rollback (rake db:rollback) to the state before the branch point....
class
... I find the expression, "opens an object's singleton class"--which I've read many times before--vague. To my knowledge, nowhere in the Ruby docs is "opening" a class defined, even though we all have an idea of what it means. Does class << self mean anything more than the value of self is se...
Understanding Fragment's setRetainInstance(boolean)
...nts can be quite useful for propagating state information — especially thread management — across activity instances. For example, a fragment can serve as a host for an instance of Thread or AsyncTask, managing its operation. See my blog post on this topic for more information.
In general, I wo...