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Glorified classes in the Java language
...ledged status of an enum is include it in a switch statement.
Object - the root of all objects (and I would add its clone and finalize methods are not something you could implement)
References: WeakReference, SoftReference, PhantomReference
Thread - the language doesn't give you a specific instructi...
Why unsigned integer is not available in PostgreSQL?
... is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer.
...
.htaccess rewrite to redirect root URL to subdirectory
...
You can use a rewrite rule that uses ^$ to represent the root and rewrite that to your /store directory, like this:
RewriteEngine On
RewriteRule ^$ /store [L]
share
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improve thi...
What is Full Text Search vs LIKE
...
MySQL creates an index from the words of the enabled full-text search column and performs searches on this index. MySQL uses a sophisticated algorithm to determine the rows matched against the search query.
Also, from this S...
How to tell git to ignore individual lines, i.e. gitignore for specific lines of code [duplicate]
...of do it with git filters:
Create/Open gitattributes file:
<project root>/.gitattributes (will be committed into repo)
OR
<project root>/.git/info/attributes (won't be committed into repo)
Add a line defining the files to be filtered:
*.rb filter=gitignore, i.e. run filter named g...
Best way to create custom config options for my Rails app?
...er in config/initializers:
# Rails 2
APP_CONFIG = YAML.load_file("#{RAILS_ROOT}/config/config.yml")[RAILS_ENV]
# Rails 3+
APP_CONFIG = YAML.load_file(Rails.root.join('config/config.yml'))[Rails.env]
If you're using Rails 3, ensure you don't accidentally add a leading slash to your relative confi...
Naming cookies - best practices [closed]
... This is especially problematic if your cookies are scoped to your website root "/", and not to the folder where they are consumed.
So I say, two best practices:
make sure you limit scope of your cookies to the path where they are read and written, (third argument of setcookie() method does thi...
How to choose the id generation strategy when using JPA and Hibernate
...table. Do not use in a cluster.
identity
supports identity columns in DB2, MySQL, MS SQL Server, Sybase and HypersonicSQL. The returned identifier is of type long, short or int.
sequence
uses a sequence in DB2, PostgreSQL, Oracle, SAP DB, McKoi or a generator in Interbase. The returned identifier is...
Groovy Shell warning “Could not open/create prefs root node …”
...JDK source code for WindowsPreferences.java. In this class, both nodes userRoot and systemRoot were declared static as in:
/**
* User root node.
*/
static final Preferences userRoot =
new WindowsPreferences(USER_ROOT_NATIVE_HANDLE, WINDOWS_ROOT_PATH);
/**
* System root node.
*/
static fin...
JavaScript Regular Expression Email Validation [duplicate]
...his is invalid too. Look at list of highest level domains iana.org/domains/root/db
– Daniel
Apr 22 '18 at 20:25
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