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Is there a decorator to simply cache function return values?
...ion while the property syntax suggests a quick lookup.
[Update: The class-based memoization decorator I had linked to and quoted here previously doesn't work for methods. I've replaced it with a decorator function.] If you're willing to use a general-purpose memoization decorator, here's a simple...
Difference between Hive internal tables and external tables?
...
Hive has a relational database on the master node it uses to keep track of state.
For instance, when you CREATE TABLE FOO(foo string) LOCATION 'hdfs://tmp/';, this table schema is stored in the database.
If you have a partitioned table, the partition...
PostgreSQL - fetch the row which has the Max value for a column
...between 0 and 30),
By query cost, below, I am referring to Postgres' cost based optimizer's cost estimate (with Postgres' default xxx_cost values), which is a weighed function estimate of required I/O and CPU resources; you can obtain this by firing up PgAdminIII and running "Query/Explain (F7)" on...
How do you keep user.config settings across different assembly versions in .net?
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ApplicationSettingsBase has a method called Upgrade which migrates all settings from the previous version.
In order to run the merge whenever you publish a new version of your application you can define a boolean flag in your settings file th...
How to move certain commits to be based on another branch in git?
...
This is a classic case of rebase --onto:
# let's go to current master (X, where quickfix2 should begin)
git checkout master
# replay every commit *after* quickfix1 up to quickfix2 HEAD.
git rebase --onto master quickfix1 quickfix2
So you should...
Hibernate, @SequenceGenerator and allocationSize
...viour of Hibernate when using @SequenceGenerator - it increases real database sequence by one , multiple this value by 50 (default allocationSize value) - and then uses this value as entity ID.
...
How to check if PHP array is associative or sequential?
...wing function.
Case 3a. keys are numeric / integers, sequential, and zero-based.
Note: This function returns true for empty arrays too.
//! Check whether the input is an array whose keys are numeric, sequential, and zero-based.
/*!
\param[in] $InputArray (array) Input array.
\ret...
PHP random string generator
...dom_pseudo_bytes(10)); // 20 chars
In PHP 7 (random_bytes()):
$string = base64_encode(random_bytes(10)); // ~14 characters, includes /=+
// or
$string = substr(str_replace(['+', '/', '='], '', base64_encode(random_bytes(32))), 0, 32); // 32 characters, without /=+
// or
$string = bin2hex(random_b...
Fastest way to check a string contain another substring in JavaScript?
... Short version: indexOf() is the fastest of all methods, but this may vary based on string length and any repeating patterns.
– Byson
Dec 22 '14 at 15:04
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Is there a pattern for initializing objects created via a DI container
...ew times in environments where I am dynamically creating ViewModel objects based on Model objects (outlined really well by this other Stackoverflow post).
I liked how the Ninject extension which allows you to dynamically create factories based on interfaces:
Bind<IMyFactory>().ToFactory();...