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What is the difference between active and passive FTP?
... background, FTP actually uses two channels between client and server, the command and data channels, which are actually separate TCP connections.
The command channel is for commands and responses while the data channel is for actually transferring files.
This separation of command information and...
Why would finding a type's initializer throw a NullReferenceException?
...ere being no null values in my code. It only throws the exception when compiled with no debug information.
2 Answers
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Setting up maven dependency for SQL Server
...n repository with;
mvn install:install-file -Dfile=sqljdbc4.jar -DgroupId=com.microsoft.sqlserver -DartifactId=sqljdbc4 -Dversion=4.0 -Dpackaging=jar
Then add it to your project with;
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>sqljdbc4</arti...
Backing beans (@ManagedBean) or CDI Beans (@Named)?
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@MattBall Matt after you years, can you comment on this migration?
– Koray Tugay
May 6 '13 at 10:11
5
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Unignore subdirectories of ignored directories in Git
...tes the pattern; any matching file
excluded by a previous pattern will become included again. It is not
possible to re-include a file if a parent directory of that file is
excluded. Git doesn’t list excluded directories for performance
reasons, so any patterns on contained files have no ef...
Difference between class and type
...ype, and classes are a kind of a type.
More info here: http://docs.oracle.com/javase/specs/jls/se8/html/jls-4.html
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Is is possible to check if an object is already attached to a data context in Entity Framework?
...ey on the context makes sure it's nice and generic and will work even with composite keys with no further coding (because EF can already do that for us!).
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How to throw a C++ exception
...
Simple:
#include <stdexcept>
int compare( int a, int b ) {
if ( a < 0 || b < 0 ) {
throw std::invalid_argument( "received negative value" );
}
}
The Standard Library comes with a nice collection of built-in exception objects you can t...
Find XOR of all numbers in a given range
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NHibernate ISession Flush: Where and when to use it, and why?
...oughly confused is the use of session.Flush ,in conjunction with session.Commit , and session.Close .
4 Answers
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