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Why do I need Transaction in Hibernate for read-only operations?
...ds for transactions in this case. But JDBC will create transaction anyway, it's just it will be working in autocommit=true if different option wasn't set explicitly.
But there is no guarantee that your method doesn't write into the database. If you mark method as @Transactional(readonly=true), Sprin...
JavaScript: Is there a way to get Chrome to break on all errors?
...looking for an equivalent in Chrome to the "break on all errors" functionality of Firebug. In the Scripts tab, Chrome has a "pause on all exceptions", but this is not quite the same as breaking on all errors.
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Mercurial undo last commit
How can I undo my last accidentally commited (not pushed) change in Mercurial?
7 Answers
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What should be the values of GOPATH and GOROOT?
...me they will be installed in
/usr/local/go (or c:\Go under Windows), but it is possible to install
the Go tools to a different location. In this case you must set the
GOROOT environment variable to point to the directory in which it was
installed.
For example, if you installed Go to you...
Deprecated: mysql_connect()
...
There are a few solutions to your problem.
The way with MySQLi would be like this:
<?php
$connection = mysqli_connect('localhost', 'username', 'password', 'database');
To run database queries is also simple and nearly identical with the old way:
<?php
// Old way
mysq...
How to change the remote repository for a git submodule?
I've created a git repository with a submodule in it. I'm able to tell the submodule itself to change its remote repository path, but I'm not sure how to tell the parent repository how to change the remote repository path for the submodule.
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Android “Only the original thread that created a view hierarchy can touch its views.”
... UI onto the main thread. There is a simple piece of code for this:
runOnUiThread(new Runnable() {
@Override
public void run() {
// Stuff that updates the UI
}
});
Documentation for Activity.runOnUiThread.
Just nest this inside the method that is running in the background,...
Loading local JSON file
I'm trying to load a local JSON file but it won't work. Here is my JavaScript code (using jQuery):
23 Answers
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Memory management in Qt?
I'm quite new to Qt and am wondering on some basic stuff with memory management and the life of objects. When do I need to delete and/or destroy my objects? Is any of this handled automatically?
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View differences of branches with meld?
I know that I can view the difference between HEAD and current state with meld . . But how can I view the differences between branches, for example master and devel with meld?
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