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How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...h the default setting and come up with a sane default for the repository. Based on the expectation that we would see collision in a repository with 2^(2N) objects when using object names shortened to first N bits, use sufficient number of hexdigits to cover the number of objects in the repository.
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How does LMAX's disruptor pattern work?
...cy.
Compared to SEDA
LMAX built the Disruptor pattern to replace a SEDA based approach.
The main improvement that it provided over SEDA was the ability to do work in parallel. To do this the Disruptor supports multi-casting the same messages (in the same order) to multiple consumers. This avoid...
How to create a custom attribute in C#
...ld be interested in the attributes you use, read them, and perform actions based on them. A typical example is a validation library, as @BrunoBrant mentioned.
– romar
May 10 '13 at 18:26
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What is the usefulness of PUT and DELETE HTTP request methods?
...me URI, /blog/article/1, the only difference is the HTTP Request verb. And based on that verb your router can call different actionController. This enables you to build neat URL-s.
Read this two articles, they might help you:
Symfony 2 - HTTP Fundamentals
Symfony 2 - Routing
These articles are a...
How exactly does CMake work?
...t in charge of managing a large cross-platform build system, and your code base is a few KLOC, maybe up to 100KLOG, using CMake seems a little bit like using a 100,000 dollar forestry tree removal machine to remove weeds from your 2 foot by 2 foot flower garden. (By the way, if you've never seen su...
Places where JavaBeans are used?
...te a list of users wherein you store the data of the user table in the database:
List<User> users = new ArrayList<User>();
while (resultSet.next()) {
User user = new User();
user.setId(resultSet.getLong("id"));
user.setName(resultSet.getString("name"));
user.setBirthdate(...
Logging levels - Logback - rule-of-thumb to assign log levels
... here. Significant boundary events should be considered as well (e.g. database calls, remote API calls). Typical business exceptions can go here (e.g. login failed due to bad credentials). Any other event you think you'll need to see in production at high volume goes here.
debug: just about everyt...
How dangerous is it to compare floating point values?
...t will make sense to compare with an "epsilon", but that epsilon should be based on the magnitude of the numbers you are comparing, not an absolute constant. (In cases where an absolute constant epsilon would work, that's strongly indicative that fixed point, not floating point, is the right tool fo...
Add new item count to icon on button - Android
...blic override bool OnCreateOptionsMenu(IMenu menu)
{
// return base.OnCreateOptionsMenu(menu);
MenuInflater.Inflate(Resource.Menu.actionmenu, menu);
// var dd = menu.FindItem(Resource.Id.icon_group);
IMenuItem item = menu.FindItem(Resource.Id.ic_group);
La...
Difference between thread's context class loader and normal classloader
...ssA". 90% of the time they mean the same. But if you are not using a URL based classloader, then only the second case is true.
– David Roussel
Aug 26 '14 at 11:19
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