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AWS Difference between a snapshot and AMI
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The major difference is between the type of service referred to. A snapshot is of an EBS volume where you are able to save state and reboot with the same data at a certain point in time.
An AMI is similar, but its for the EC2 instances themselves. You cannot take a sn...
Which timestamp type should I choose in a PostgreSQL database?
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How to move Jenkins from one PC to another
...n Target Jenkins go to ThinBackup --> Restore, and then restart Jenkins service.
If some Plugins or Jobs are missing, copy the backup content directly to the target JENKINS_HOME.
If you had user authentication on the source Jenkins, and now locked out on the target Jenkins, then edit Jenkins conf...
Changing the background drawable of the searchview widget
..._menu, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
MenuItem searchMenuItem = menu.findItem(R.id.action_search);
SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchMenuItem);
searchView.setSearchableInfo(searchM...
Difference between WAIT and BLOCKED thread states
...g for a lock; that thread still counts as something the scheduler needs to service, possibly getting factored into the scheduler's decisions about how much time to give running threads (so that it can give the threads blocking on the lock a chance).
Once a thread is in the wait state the stress it ...
How and where are Annotations used in Java?
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to describe the "nature" of an element, e.g. @Entity, @TestCase, @WebService
to describe the behavior of an element: @Statefull, @Transaction
to describe how to process the element: @Column, @XmlElement
In all cases, an annotation is used to describe the element and clarify its meaning.
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to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
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CharSequence VS String in Java?
...mance issues. The implementation may even be retrieving text from a remote service, and therefore has latency implications.
and converting from one to another?
You generally won't be converting back and forth. A String is a CharSequence. If your method declares that it takes a CharSequence, t...
Java EE web development, where do I start and what skills do I need? [closed]
... is a great way to learn Java.
If you need/want to build RESTful web sites/services/applications, Restlet is a fantastic framework — I'm a big fan. It's simple, straightforward, and yet flexible. Great community too.
Google's App Engine is an interesting option as well. It's hosted, which may or m...
Why use the INCLUDE clause when creating an index?
...tional columns which takes more time, and adds more load to the SQL Server service, the disks, and the memory (buffer cache to be specific) as new data pages are loaded into memory, potentially pushing other more often needed data out of the buffer cache.
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