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Reusing a PreparedStatement multiple times
...d way is a tad more efficient, but a much better way is to execute them in batches:
public void executeBatch(List<Entity> entities) throws SQLException {
try (
Connection connection = dataSource.getConnection();
PreparedStatement statement = connection.prepareStatement(SQ...
Check if my app has a new version on AppStore
...hread, if the connection is slow it can block the current thread.
DispatchQueue.global().async {
do {
let update = try self.isUpdateAvailable()
DispatchQueue.main.async {
// show alert
}
} catch {
print(error)
}
}
Update
Using URLSession:
...
Real World Use of Zookeeper [closed]
...ersatile; here is an example of using it to build a distributed concurrent queue:
http://blog.cloudera.com/blog/2009/05/building-a-distributed-concurrent-queue-with-apache-zookeeper/
You can of course also use it to create resource locks, etc, in a distributed system.
...
Android: When should I use a Handler() and when should I use a Thread?
...e background and UI thread. Generally Handlers are associated with message Queue of a Thread and they are used to send messages and runnable to the Message.
USE:
Thread: To do tasks in saperate(Background) thread than UI thread. (helps to unblock the UI thread)
Handler Used to communicate between...
How do I design a class in Python?
... For this Database object you could hide how the networking calls work, or batch queries or updates, or provide a caching layer.
The problem is this Database object is HUGE. It represents how to access a database, so under the covers it could do anything and everything. Clearly networking, caching...
Download the Android SDK components for offline install
Is it possible to download the Android SDK components for offline install without using the SDK Manager?
The problem is I am behind a firewall which I have no control over and both sites download URLs seem to be blocked (throws a connection refused exception)
...
Delete multiple records using REST
...he answer is to make the "problem" into a resource, and give it a URL.
So, batch operations, such as delete here, or POSTing multiple items to a list, or making the same edit to a swathe of resources, can all be handled by creating a "batch operations" list and POSTing your new operation to it.
Don...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
... server: {
baseDir: "./",
},
port: 5000,
reloadOnRestart: true,
browser: "google chrome"
});
gulp.watch('./**/*', ['', bs.reload]);
});
Step 3: Install browser sync gulp plugin. Inside the same directory where gulpfile...
Send and receive messages through NSNotificationCenter in Objective-C?
...
There is also the possibility of using blocks:
NSOperationQueue *mainQueue = [NSOperationQueue mainQueue];
[[NSNotificationCenter defaultCenter]
addObserverForName:@"notificationName"
object:nil
queue:mainQueue
usingBlock:^(NSNotification *notification)
{
...
wait() or sleep() function in jquery?
...othing to do with animation). .delay does jack beans outside the animation queue. Whomever upvoted your erroneous comment, were mislead themselves.
– IncredibleHat
Mar 19 '19 at 16:03
...