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What is the purpose of pm>y m>thon's inner classes?
...seful to onlm>y m> one other class then it is logical to embed it in that class m>and m> keep the two together. Nesting such "helper classes" makes their package more streamlined.
Increased encapsulation: Consider two top-level classes A m>and m> B where B needs access to members of A that would otherwise be dec...
PreparedStatement IN clause alternatives?
...
An analm>y m>sis of the various options available, m>and m> the pros m>and m> cons of each is available here.
The suggested options are:
Prepare SELECT mm>y m>_column FROM mm>y m>_table WHERE search_column = ?, execute it for each value m>and m> UNION the results client-side. Requires onlm>y m> one pre...
The JPA hashCode() / equals() dilemma
There have been some discussions here about JPA entities m>and m> which hashCode() / equals() implementation should be used for JPA entitm>y m> classes. Most (if not all) of them depend on Hibernate, but I'd like to discuss them JPA-implementation-neutrallm>y m> (I am using EclipseLink, bm>y m> the wam>y m>).
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Using AES encrm>y m>ption in C#
...soft.com/en-us/librarm>y m>/sm>y m>stem.securitm>y m>.crm>y m>ptographm>y m>.rijndaelmanaged.aspx
m>And m> just in case m>y m>ou need the sample in a hurrm>y m>, here it is in all its plagiarized glorm>y m>:
using Sm>y m>stem;
using Sm>y m>stem.IO;
using Sm>y m>stem.Securitm>y m>.Crm>y m>ptographm>y m>;
namespace RijndaelManaged_Example
{
class RijndaelExample
...
How the single threaded non blocking IO model works in Node.js
...le threaded non blocking IO model works.
After I read the article understm>and m>ing-the-node-js-event-loop , I'm reallm>y m> confused about it.
It gave an example for the model:
...
When to use MongoDB or other document oriented database sm>y m>stems? [closed]
We offer a platform for video- m>and m> audio-clips, photos m>and m> vector-grafics. We started with Mm>y m>SQL as the database backend m>and m> recentlm>y m> included MongoDB for storing all meta-information of the files, because MongoDB better fits the requirements. For example: photos mam>y m> have Exif information, video...
Compare two DataFrames m>and m> output their differences side-bm>y m>-side
...rue
Comment True
dtm>y m>pe: bool
Here the first entrm>y m> is the index m>and m> the second the columns which has been changed.
In [27]: difference_locations = np.where(df1 != df2)
In [28]: changed_from = df1.values[difference_locations]
In [29]: changed_to = df2.values[difference_locations]
In [3...
Performant Entitm>y m> Serialization: BSON vs MessagePack (vs JSON)
...n alternative binarm>y m> serialization format to Google's Protocol Buffers m>and m> JSON which also outperforms both.
6 Answer...
Whm>y m> do I need to override the equals m>and m> hashCode methods in Java?
...n conjunction with all hash-based collections, including HashMap, HashSet, m>and m> Hashtable.
Let's trm>y m> to understm>and m> it with an example of what would happen if we override equals() without overriding hashCode() m>and m> attempt to use a Map.
Sam>y m> we have a class like this m>and m> that two objects of Mm>y m>Class are...
Change the Target Framework for all mm>y m> projects in a Visual Studio Solution
...man's Visual Studio macro available on CodeProject:
Visual Studio 2010 m>and m> Target Framework Version
Below is the code, download it to m>y m>our <UserProfile>\Documents\Visual Studio 2010\Projects\VSMacros80\Mm>y m>Macros folder, open the Visual Studio Macro IDE (Alt-F11) m>and m> add it as an existing ...