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Hibernate openSession() vs getCurrentSession()
...ion() always opens a new session that you have to close once you are done with the operations. SessionFactory.getCurrentSession() returns a session bound to a context - you don't need to close this.
If you are using Spring or EJBs to manage transactions you can configure them to open / close sessio...
Difference between id and name attributes in HTML
...ols respond differently. For example, you may have several radio buttons with different id attributes, but the same name. When submitted, there is just the one value in the response - the radio button you selected.
Of course, there's more to it than that, but it will definitely get you thinking i...
Convert php array to Javascript
...
Spudley's answer is fine.
Security Notice: The following should not be necessary any longer for you
If you don't have PHP 5.2 you can use something like this:
function js_str($s)
{
return '"' . addcslashes($s, "\0..\37\"\\") . '"';
}
function js_ar...
Is there anything like inotify on Windows?
With the Linux OS, there is the ionotify subsystem which notifies an application of changes to the filesystem.
8 Answers
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ADT requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found
...e components for the SDK. I was able to get DDMS to install when selecting it by itself.
29 Answers
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.Net picking wrong referenced assembly version
...t copied an existing project to a brand new machine to start developing on it and have run into a problem with the version of one of my referenced assemblies (a telerik DLL as it happens).
...
Difference between String replace() and replaceAll()
... and replaceAll() methods,
other than later uses regex? For simple substitutions like, replace . with / ,
is there any difference?
...
Difference between Hive internal tables and external tables?
...
Hive has a relational database on the master node it uses to keep track of state.
For instance, when you CREATE TABLE FOO(foo string) LOCATION 'hdfs://tmp/';, this table schema is stored in the database.
If you have a partitioned table, the partitions are stored in the data...
Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
...-distinct values for the index are allowed, so the index may contain rows with identical values in all columns of the index. These indexes don't enforce any restraints on your data so they are used only for access - for quickly reaching certain ranges of records without scanning all records.
UNIQU...
Windows batch files: .bat vs .cmd?
As I understand it, .bat is the old 16-bit naming convention, and .cmd is for 32-bit Windows, i.e., starting with NT. But I continue to see .bat files everywhere, and they seem to work exactly the same using either suffix. Assuming that my code will never need to run on anything older than NT, d...