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Google Guice vs. PicoContainer for Dependency Injection
...tion is kept to a minimum.
Spring - Relatively easy to configure but most examples use Spring XML as the method for configuration. Spring XML files can become very large and complex over time and take time to load. Consider using a mix of Spring and hand cranked Dependency Injection to overcome this...
When to use AtomicReference in Java?
...amework rather than bare Atomic* unless you know what you're doing.
Two excellent dead-tree references which will introduce you to this topic:
Herlihy's excellent Art of Multiprocessor Programming
Java Concurrency in Practice
Note that (I don't know if this has always been true) reference as...
Python group by
Assume that I have a set of data pair where index 0 is the value and index 1 is the type:
6 Answers
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What can you use Python generator functions for?
...ors give you lazy evaluation. You use them by iterating over them, either explicitly with 'for' or implicitly by passing it to any function or construct that iterates. You can think of generators as returning multiple items, as if they return a list, but instead of returning them all at once they re...
SQL Server dynamic PIVOT query?
...nto temp values ('3/1/2012', 'ABC', 1100.00)
DECLARE @cols AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX);
SET @cols = STUFF((SELECT distinct ',' + QUOTENAME(c.category)
FROM temp c
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @q...
Using git repository as a database backend
... some structured form (I'd prefer YAML, but it may just as well be JSON or XML).
5 Answers
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Are there legitimate uses for JavaScript's “with” statement?
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What are Runtime.getRuntime().totalMemory() and freeMemory()?
I've been wondering what the exact meaning of Runtime.getRuntime().totalMemory() , Runtime.getRuntime().freeMemory() , and Runtime.getRuntime().maxMemory() is.
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Difference between 'python setup.py install' and 'pip install'
I have an external package I want to install into my python virtualenv from a tar file.
What is the best way to install the package?
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What is the use for Task.FromResult in C#
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@StephenCleary hmhm, thanks for explaining that. I had assumed that await would spawn, but I tried it and I see it doesn't. Only Task.Run does. Therefore, x = await Task.FromResult(0); is equivalent to saying x = 0; that's confusing, but good to know!
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