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When should I use RequestFactory vs GWT-RPC?
...ying, but if you have to create proxies anyway, then you'd rather have the extra help that RF gives you for managing those proxies. Not everybody wants to send the entire pojo to the client - for example, consider a poker game - your Player object might have information that everybody should see (n...
What does “Could not find or load main class” mean?
...with signature, return type and modifiers given by public static void main(String[]). (Note, the method argument's name is NOT part of the signature.)
Call that method passing it the command line arguments ("fred", "joe", "bert") as a String[].
Reasons why Java cannot find the class
When you get...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...a number being inserted into a varchar or text field, but inserting a text string into a field with a numeric data type would result in bad data.
– codewaggle
Dec 18 '12 at 11:02
2...
Git Cherry-pick vs Merge Workflow
...e. (As a minor secondary issue the new cherry-picked commits will take up extra space if someone else cherry-picks in the same commit again, as they will both be present in the history even if your working copies end up being identical.)
Ease of use. People tend to understand the merge workflow fa...
Adding iOS UITableView HeaderView (not section header)
...o do that, you need to be able to calculate the height of the cell given a string, and pass that value in for heightForRowAtIndexPath. You can use NSString's method sizeWithFont:constrainedToSize: function to figure out the height of the text when constrained to a size.
– Mark
...
How do popular apps authenticate user requests from their mobile app to their server?
...lly they hard-code in the code of their mobile app. Some developers go the extra mile and compute the key at run-time in the mobile app, thus it becomes a runtime secret as opposed to the former approach when a static secret is embedded in the code.
The above write-up was extracted from an article I...
Use of Finalize/Dispose method in C#
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as extra computing effort is needed in the CLR to keep track of classes with active finalizers. - Implementing a finalizer causes this to happen. Calling GC.SuppressFinalize means that the Finalizer should not be called by the r...
Why are joins bad when considering scalability?
...
@slolife regular sql views are like running an extra query in the background on the fly when you use a query that references the view. But you can also tell sql server to "materialize" some views. When you do this, sql server will keep an extra copy of the view's data, j...
When should I use Inline vs. External Javascript?
...d as <static> and <dynamic>. The static portion is basically a string constant which you shove down the response pipe as fast as you possibly can. This can be a little tricky if you use a lot of middleware that sets cookies (these need to be set before sending http content), but in princ...
What is the significance of 1/1/1753 in SQL Server?
... valid (because the Julian leap-year
rule applies). Why did Oracle go to extra trouble when the SQL
Standard doesn't seem to require it? The answer is that users might
require it. Historians and astronomers use this hybrid system instead
of a proleptic Gregorian calendar. (This is also the d...